[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350/9550

[Eugene San]

** Summary changed:

- screen flickering on XPS13 9350
+ screen flickering on XPS13 9350/9550

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https://bugs.launchpad.net/bugs/1554613

Title:
  Screen flickers on XPS 13 9350/9550 (Intel Skylake/Broadwell GPU)

Status in Linux:
  Fix Released
Status in linux package in Ubuntu:
  Triaged

Bug description:
  see LP: #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-16

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[pranith]

The bug is apparently fixed in the latest intel-drm-next branch. We
still need to identify the fix and backport it to the kernel in Ubuntu.
Any bisecting help is appreciated.

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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in Linux:
  Fix Released
Status in linux package in Ubuntu:
  Triaged

Bug description:
  see LP: #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-16

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Bug Watch Updater]

** Changed in: linux
   Status: Incomplete => Fix Released

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in Linux:
  Fix Released
Status in linux package in Ubuntu:
  Triaged

Bug description:
  see LP: #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-16

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/linux/+bug/1554613/+subscriptions

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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Richard Platt]

Please ignore my last comment I figured it out:

plattr@beatrice:~$ uname -a
Linux beatrice 4.6.0-994-generic #201604242200 SMP Mon Apr 25 02:03:20 UTC 2016 
x86_64 x86_64 x86_64 GNU/Linux
plattr@beatrice:~$

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in Linux:
  Incomplete
Status in linux package in Ubuntu:
  Triaged

Bug description:
  see LP: #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-16

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/linux/+bug/1554613/+subscriptions

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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Richard Platt]

Please could someone explain how I upgrade my kernel to the one with the
fix. Thanks.

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in Linux:
  Incomplete
Status in linux package in Ubuntu:
  Triaged

Bug description:
  see LP: #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-16

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/linux/+bug/1554613/+subscriptions

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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Christopher M. Penalver]

** Tags added: cherry-pick

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in Linux:
  Incomplete
Status in linux package in Ubuntu:
  Triaged

Bug description:
  see LP: #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-16

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/linux/+bug/1554613/+subscriptions

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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Timo Aaltonen]

I suspect even the oldest nightly works fine.. so check -next builds
starting from the second newest (newest was already found working)

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in Linux:
  Incomplete
Status in linux package in Ubuntu:
  Triaged

Bug description:
  see LP: #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-16

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/linux/+bug/1554613/+subscriptions

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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Timo Aaltonen]

could you bisect either drm-intel-next or -nightly kernels to point out
where it got fixed?

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in Linux:
  Incomplete
Status in linux package in Ubuntu:
  Triaged

Bug description:
  see LP: #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-16

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Thomas Bonfort]

I've been on 4.6.0-997-generic drm-intel-next for a day and can confirm
that the flickering is gone

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You received this bug notification because you are a member of Kernel
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Title:
  screen flickering on XPS13 9350

Status in Linux:
  Incomplete
Status in linux package in Ubuntu:
  Triaged

Bug description:
  see LP: #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-16

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Bug Watch Updater]

** Bug watch added: freedesktop.org Bugzilla #91393
   https://bugs.freedesktop.org/show_bug.cgi?id=91393

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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in Linux:
  Incomplete
Status in linux package in Ubuntu:
  Triaged

Bug description:
  see LP: #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-16

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Brad Buran]

Currently running Xenial. Kernel 4.4.0-18 and 4.4.0-21 have the screen
flicker. Currently on Kernel 4.3.3-040303. No screen flicker. Please let
me know what other information you need to help debug this.

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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in Linux:
  Incomplete
Status in linux package in Ubuntu:
  Triaged

Bug description:
  see LP: #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-16

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/linux/+bug/1554613/+subscriptions

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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[antonino elia mandri]

while on kernel 4.6 rc4 screen-flicker is present

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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in Linux:
  Incomplete
Status in linux package in Ubuntu:
  Triaged

Bug description:
  see LP: #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-16

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/linux/+bug/1554613/+subscriptions

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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[antonino elia mandri]

i am on 4.6.0-997-generic drm-intel-next and flicker is not present
since one week

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in Linux:
  Incomplete
Status in linux package in Ubuntu:
  Triaged

Bug description:
  see LP: #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-16

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/linux/+bug/1554613/+subscriptions

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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Daniel Basten]

i am on 4.4.0-21-generic with intel_idle.max_cstate=0 now

but I still got the flickering display:

[  188.260368] [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]]
*ERROR* CPU pipe A FIFO underrun

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in Linux:
  Incomplete
Status in linux package in Ubuntu:
  Triaged

Bug description:
  see LP: #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-16

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/linux/+bug/1554613/+subscriptions

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Re: [Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Daniel Basten]

I will try current Kernel with disable c-states give me a few hours.

Moondog <1554...@bugs.launchpad.net> schrieb am Mi., 20. Apr. 2016,
07:21:

> While I noticed the screen-flicker doesn't show while compiling a linux
> kernel, I am guessing the problem might be related to c-states. After
> adding "intel_idle.max_cstate=0" to the kernel command-line the screen-
> flicker hasn't shown anymore.
>
> While disabling c-states is not acceptable as a workaround, it might
> help to find the root-cause of the problem for the (Intel) developers.
> Can anyone confirm the c-state relation?
>
> --
> You received this bug notification because you are subscribed to a
> duplicate bug report (1561729).
> https://bugs.launchpad.net/bugs/1554613
>
> Title:
>   screen flickering on XPS13 9350
>
> Status in Linux:
>   Incomplete
> Status in linux package in Ubuntu:
>   Triaged
>
> Bug description:
>   see LP: #1552304
>
>   does not affect 4.4.0-8
>   affects 4.4.0-9 to 4.4.0-16
>
>   ProblemType: Bug
>   DistroRelease: Ubuntu 16.04
>   Package: linux-image-generic 4.4.0.11.12
>   ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
>   Uname: Linux 4.4.0-8-generic x86_64
>   ApportVersion: 2.20-0ubuntu3
>   Architecture: amd64
>   AudioDevicesInUse:
>USERPID ACCESS COMMAND
>/dev/snd/controlC0:  tbonfort   1498 F pulseaudio
>   CurrentDesktop: KDE
>   Date: Tue Mar  8 09:57:12 2016
>   HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
>   InstallationDate: Installed on 2016-01-07 (61 days ago)
>   InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64
> (20151021)
>   Lsusb:
>Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
>Bus 001 Device 003: ID 0c45:670c Microdia
>Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
>Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>   MachineType: Dell Inc. XPS 13 9350
>   ProcFB: 0 inteldrmfb
>   ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic
> root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
>   RelatedPackageVersions:
>linux-restricted-modules-4.4.0-8-generic N/A
>linux-backports-modules-4.4.0-8-generic  N/A
>linux-firmware   1.156
>   SourcePackage: linux
>   UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
>   dmi.bios.date: 01/08/2016
>   dmi.bios.vendor: Dell Inc.
>   dmi.bios.version: 1.2.3
>   dmi.board.name: 07TYC2
>   dmi.board.vendor: Dell Inc.
>   dmi.board.version: A01
>   dmi.chassis.type: 9
>   dmi.chassis.vendor: Dell Inc.
>   dmi.modalias:
> dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
>   dmi.product.name: XPS 13 9350
>   dmi.sys.vendor: Dell Inc.
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/linux/+bug/1554613/+subscriptions
>

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in Linux:
  Incomplete
Status in linux package in Ubuntu:
  Triaged

Bug description:
  see LP: #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-16

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage 

[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Moondog]

While I noticed the screen-flicker doesn't show while compiling a linux
kernel, I am guessing the problem might be related to c-states. After
adding "intel_idle.max_cstate=0" to the kernel command-line the screen-
flicker hasn't shown anymore.

While disabling c-states is not acceptable as a workaround, it might
help to find the root-cause of the problem for the (Intel) developers.
Can anyone confirm the c-state relation?

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in Linux:
  Incomplete
Status in linux package in Ubuntu:
  Triaged

Bug description:
  see LP: #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-16

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Daniel Basten]

Is there anything i can do to support?

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in Linux:
  Incomplete
Status in linux package in Ubuntu:
  Triaged

Bug description:
  see LP: #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-16

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/linux/+bug/1554613/+subscriptions

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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[BlackLight]

Same issue on Dell XPS 13 9343.

Running Arch Linux, 4.4.5-1-ARCH, x86_64.

$ pacman -Q | grep xf86-video-intel
xf86-video-intel 1:2.99.917+604+gff0ab2c-1

$ pacman -Q | grep xorg-server
xorg-server 1.18.3-1

Things went better when I upgraded from 1:2.99.917+587+gc186d4d-1 to
1:2.99.917+604+gff0ab2c-1 (flickering was making my laptop just
unusable). But still it happens, although less frequently.

dmesg log lines when the issue occurs:

[ 7780.306704] [drm:intel_dp_link_training_clock_recovery [i915]] *ERROR* too 
many full retries, give up
[ 7824.405766] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU 
pipe A FIFO underrun
[ 7865.757760] [drm:intel_dp_link_training_channel_equalization [i915]] *ERROR* 
5.4 Gbps link rate without HBR2/TPS3 support

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in Linux:
  Incomplete
Status in linux package in Ubuntu:
  Triaged

Bug description:
  see LP: #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-16

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/linux/+bug/1554613/+subscriptions

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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Bug Watch Updater]

** Changed in: linux
   Status: In Progress => Incomplete

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in Linux:
  Incomplete
Status in linux package in Ubuntu:
  Triaged

Bug description:
  see LP: #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-16

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/linux/+bug/1554613/+subscriptions

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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Timo Aaltonen]

0 is the default, PSR isn't enabled (yet)

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in Linux:
  In Progress
Status in linux package in Ubuntu:
  Triaged

Bug description:
  see LP: #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-16

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/linux/+bug/1554613/+subscriptions

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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Thomas Bonfort]

Timo: with -extra installed I can now boot up successfully. The
flickering still occurs with enable_psr=0, 1 and 2 . It seems to occur
more frequently when set to 0

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in Linux:
  In Progress
Status in linux package in Ubuntu:
  Triaged

Bug description:
  see LP: #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-16

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/linux/+bug/1554613/+subscriptions

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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Timo Aaltonen]

you didn't install linux-image-extra, which has most of the drivers,
including i915..

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in Linux:
  In Progress
Status in linux package in Ubuntu:
  Triaged

Bug description:
  see LP: #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-16

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Bug Watch Updater]

Launchpad has imported 4 comments from the remote bug at
https://bugs.freedesktop.org/show_bug.cgi?id=94593.

If you reply to an imported comment from within Launchpad, your comment
will be sent to the remote bug automatically. Read more about
Launchpad's inter-bugtracker facilities at
https://help.launchpad.net/InterBugTracking.


On 2016-03-17T15:01:04+00:00 Thomas Bonfort wrote:

I'm experiencing what seems to be random flickering (not related to
hiding cursor as seen on #93945).

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1554613 contains my
bisection of the issue.

[359d2243117a79599435141fda0047d01ef324e8] drm/i915: Update DRIVER_DATE to 
20160314
from drm-intel-next still exhibits the issue

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1554613/comments/16


On 2016-03-17T19:55:30+00:00 Thomas Bonfort wrote:

I've bisected this down with relative confidence (had to mark commits
from 4.3 as artificially good as the system was not usable with this
older version of the kernel):

921ec285a6589cf3beb7f56a70744f75b09349f8 is the first bad commit
commit 921ec285a6589cf3beb7f56a70744f75b09349f8
Author: Rodrigo Vivi 
Date:   Wed Nov 18 11:21:12 2015 -0800


Here is the full bisect log:

git bisect start '--' 'drivers/gpu/drm/i915' 'include/drm/' 'include/uapi/drm/'
# bad: [359d2243117a79599435141fda0047d01ef324e8] drm/i915: Update DRIVER_DATE 
to 20160314
git bisect bad 359d2243117a79599435141fda0047d01ef324e8
# good: [1cb8570bf04ab12a03c31c397a4d158f24895d9c] Linux 4.4.2
git bisect good 1cb8570bf04ab12a03c31c397a4d158f24895d9c
# good: [afd2ff9b7e1b367172f18ba7f693dfb62bdcb2dc] Linux 4.4
git bisect good afd2ff9b7e1b367172f18ba7f693dfb62bdcb2dc
# bad: [2a33d93486f247924e46b5402b8ffb43d1b9b38c] drm/i915/bios: add support 
for MIPI sequence block v3
git bisect bad 2a33d93486f247924e46b5402b8ffb43d1b9b38c
# bad: [013d37520af735fd55f78e33edf55cc6fb3858eb] drm/i915: Introduce 
bdw_{update,enable,disable}_pipe_irq()
git bisect bad 013d37520af735fd55f78e33edf55cc6fb3858eb
# good: [b1a14c6e40413f833dadc1d23b43c530f4b8e381] drm/i915: refactor stepping 
info retrieval
git bisect good b1a14c6e40413f833dadc1d23b43c530f4b8e381
# good: [78e0d2e3477aa3e8bdac70698ddd2aad020016d1] drm/i915: Store DVO SRCDIM 
register offset under intel_dvo_device
git bisect good 78e0d2e3477aa3e8bdac70698ddd2aad020016d1
# good: [a6d09186fa27dea720ddd668a814cb6e4f78d53b] drm/i915: Stuff rotation 
params into view union
git bisect good a6d09186fa27dea720ddd668a814cb6e4f78d53b
# good: [ca1a95334ddaf624c1b0424113fe9b8100da1614] drm/i915: Remove duplicated 
dpcd write on hsw_psr_enable_sink.
git bisect good ca1a95334ddaf624c1b0424113fe9b8100da1614
# bad: [9bbc8258ae5914af1986561767d971417cee7a28] drm/i915: Check for underruns 
after crtc disable
git bisect bad 9bbc8258ae5914af1986561767d971417cee7a28
# bad: [05eec3c2709d8966cbfcc7cd395f37889c492678] drm/i915: Remove PSR Perf 
Counter for SKL+
git bisect bad 05eec3c2709d8966cbfcc7cd395f37889c492678
# bad: [bb929cbc1f58c72eaf7981281dbb024ad92ef24d] drm/i915: PSR: Mask LPSP hw 
tracking back again.
git bisect bad bb929cbc1f58c72eaf7981281dbb024ad92ef24d
# bad: [921ec285a6589cf3beb7f56a70744f75b09349f8] drm/i915: PSR: Let's rely 
more on frontbuffer tracking.
git bisect bad 921ec285a6589cf3beb7f56a70744f75b09349f8
# first bad commit: [921ec285a6589cf3beb7f56a70744f75b09349f8] drm/i915: PSR: 
Let's rely more on frontbuffer tracking.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1554613/comments/17


On 2016-04-04T02:52:48+00:00 Christopher M. Penalver wrote:

Could someone at Intel please assign this to offending commit committer
Rodrigo Vivi (or request he assign himself)?

Unfortunately, bugzilla won't allow one to either assign him or CC as per error 
message:
Assignee:
rodrigo.vivi AT intel DOT com did not match anything 

Also, this seems strange one cannot assign him given Intel's
documentation states to report here as per
https://01.org/linuxgraphics/documentation/how-report-bugs , but yet
bugzilla cannot reach the appropriate developer?

Despite this, increasing importance, given it's bisected, reproducible
for a few folks as reported downstream, and reproducible in latest drm-
intel-nightly.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1554613/comments/30


On 2016-04-04T08:49:51+00:00 Jani-nikula wrote:

(In reply to Christopher M. Penalver from comment #2)
> Could someone at Intel please assign this to offending commit committer
> Rodrigo Vivi (or request he assign himself)?
> 
> Unfortunately, bugzilla won't allow one to either assign him or CC as per
> error message:
> Assignee:
> rodrigo.vivi AT intel DOT com did not 

[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Thomas Bonfort]

dmesg of failed startup with 4.4.0-17

** Attachment added: "dmesg.4.4.0-17"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1554613/+attachment/4622561/+files/dmesg.4.4.0-17

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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in Linux:
  Unknown
Status in linux package in Ubuntu:
  Triaged

Bug description:
  see LP: #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-16

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Thomas Bonfort]

with 4.4.0-16: flickers with or without i915.enable_psr=1 , and with or without 
reverting rodrigo's commit found by bisection
with 4.4.0-17: X does not start , I'm left with a blank screen. happens with or 
without i915.enable_psr

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in Linux:
  Unknown
Status in linux package in Ubuntu:
  Triaged

Bug description:
  see LP: #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-16

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Thomas Bonfort]

failed X startup with 4.4.0-17. Let me know if you want more info.

** Attachment added: "Xorg.0.log.old"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1554613/+attachment/4622524/+files/Xorg.0.log.old

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in Linux:
  Unknown
Status in linux package in Ubuntu:
  Triaged

Bug description:
  see LP: #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-16

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/linux/+bug/1554613/+subscriptions

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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Timo Aaltonen]

i915_bpo is tracking 4.6, and 4.4.0-17 has essentially the same driver
as 4.6-rc1. Does reverting that commit fix it? Also, you could try
booting with 'i915.enable_psr=1' to actually use PSR, which should be
stable on SKL now, assuming X is using the intel driver.

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in Linux:
  Unknown
Status in linux package in Ubuntu:
  Triaged

Bug description:
  see LP: #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-16

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/linux/+bug/1554613/+subscriptions

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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Daniel Basten]

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1561729/comments/15

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in Linux:
  Unknown
Status in linux package in Ubuntu:
  Triaged

Bug description:
  see LP: #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-16

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/linux/+bug/1554613/+subscriptions

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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Daniel Basten]

as mentioned in #1561729:

kernel 4.6rc1 also did not fixed the issue for me

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in Linux:
  Unknown
Status in linux package in Ubuntu:
  Triaged

Bug description:
  see LP: #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-16

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Thomas Bonfort]

No change with 4.6-rc1-wily for me

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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in Linux:
  Unknown
Status in linux package in Ubuntu:
  Triaged

Bug description:
  see LP: #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-16

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Eugene San]

I am still not 100% sure but after a day with this kernel:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.6-rc1-wily/ I can
report the following:

1. No flickering
2. No more kernel dumps/bugs reports
3. No more i915 warnings
4. No more suspend issues
5. No more Dell WMI events errors
6. Not that it wasn't great but battery life seems to be improved (might be a 
placebo effect)

Looks like Linux 4.4 is just not ready for Skylake and backporting all the 
fixes is going to be hell for both maintainers and users.
If I were in position, I would push for Kernel 4.6 as an official kernel 
variant for 16.04 (before 16.04.1).

I just hope Dell will create enough momentum for those issues to be
resolved soon, after all it's their flagship device with official Ubuntu
support.

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in Linux:
  Unknown
Status in linux package in Ubuntu:
  Triaged

Bug description:
  see LP: #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-16

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Eugene San]

** Also affects: linux via
   https://bugs.freedesktop.org/show_bug.cgi?id=94593
   Importance: Unknown
   Status: Unknown

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in Linux:
  Unknown
Status in linux package in Ubuntu:
  Triaged

Bug description:
  see LP: #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-16

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/linux/+bug/1554613/+subscriptions

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Re: [Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Daniel Basten]

I do confirm that behavior

Thomas Bonfort  schrieb am Sa., 2. Apr. 2016,
18:05:

> For me, the flickering happens with or without AC. And First flicker
> always ends up having the FIFO error message being printed.
>
> --
> You received this bug notification because you are subscribed to a
> duplicate bug report (1561729).
> https://bugs.launchpad.net/bugs/1554613
>
> Title:
>   screen flickering on XPS13 9350
>
> Status in linux package in Ubuntu:
>   Triaged
>
> Bug description:
>   see LP: #1552304
>
>   does not affect 4.4.0-8
>   affects 4.4.0-9 to 4.4.0-16
>
>   ProblemType: Bug
>   DistroRelease: Ubuntu 16.04
>   Package: linux-image-generic 4.4.0.11.12
>   ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
>   Uname: Linux 4.4.0-8-generic x86_64
>   ApportVersion: 2.20-0ubuntu3
>   Architecture: amd64
>   AudioDevicesInUse:
>USERPID ACCESS COMMAND
>/dev/snd/controlC0:  tbonfort   1498 F pulseaudio
>   CurrentDesktop: KDE
>   Date: Tue Mar  8 09:57:12 2016
>   HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
>   InstallationDate: Installed on 2016-01-07 (61 days ago)
>   InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64
> (20151021)
>   Lsusb:
>Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
>Bus 001 Device 003: ID 0c45:670c Microdia
>Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
>Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>   MachineType: Dell Inc. XPS 13 9350
>   ProcFB: 0 inteldrmfb
>   ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic
> root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
>   RelatedPackageVersions:
>linux-restricted-modules-4.4.0-8-generic N/A
>linux-backports-modules-4.4.0-8-generic  N/A
>linux-firmware   1.156
>   SourcePackage: linux
>   UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
>   dmi.bios.date: 01/08/2016
>   dmi.bios.vendor: Dell Inc.
>   dmi.bios.version: 1.2.3
>   dmi.board.name: 07TYC2
>   dmi.board.vendor: Dell Inc.
>   dmi.board.version: A01
>   dmi.chassis.type: 9
>   dmi.chassis.vendor: Dell Inc.
>   dmi.modalias:
> dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
>   dmi.product.name: XPS 13 9350
>   dmi.sys.vendor: Dell Inc.
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1554613/+subscriptions
>

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in linux package in Ubuntu:
  Triaged

Bug description:
  see LP: #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-16

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1554613/+subscriptions

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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Thomas Bonfort]

For me, the flickering happens with or without AC. And First flicker
always ends up having the FIFO error message being printed.

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in linux package in Ubuntu:
  Triaged

Bug description:
  see LP: #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-16

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1554613/+subscriptions

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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Eugene San]

** Attachment added: "dmesg.log"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1554613/+attachment/4620483/+files/dmesg.log

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in linux package in Ubuntu:
  Triaged

Bug description:
  see LP: #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-16

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Eugene San]

I would like to add  few observations:

1. Seems like the issue is Power Management related since I've never
experienced it with AC adapter connected and sometimes almost instantly
after disconnecting it, the flickering is started.

2. Sometimes first "flick" after reboot or PM change is accompanied
with "[drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU
pipe A FIFO underrun"

3. My dmesg is not as clean as the one provided by original reporter. It
filled with quite a few bug/dump reports of i915 driver. Attaching my
dmesg.log.

4. Once in a while, I find the computer in state which seems like a
hardware "hang" but I suspect it's an i915 driver fault since sometimes
after a prolonged wait the computer finally wakes up and later I find
the errors mentioned in 3. Note those hangs can happen even if the
computer is powered from AC and no automatic suspend is configured.

Seems like upstream bug report didn't get the attention it deserves, any
ideas on how to assist with this bug(s) resolution?

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https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in linux package in Ubuntu:
  Triaged

Bug description:
  see LP: #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-16

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Thomas Bonfort]

sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date
1.3.3
03/01/2016

** Tags removed: latest-bios-1.3.2
** Tags added: latest-bios-1.3.3

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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in linux package in Ubuntu:
  Triaged

Bug description:
  see LP: #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-16

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Christopher M. Penalver]

Thomas Bonfort, please provide the output of the following terminal command:
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in linux package in Ubuntu:
  Triaged

Bug description:
  see LP: #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-16

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Thomas Bonfort]

** Tags removed: latest-bios-1.2.3
** Tags added: latest-bios-1.3.2

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in linux package in Ubuntu:
  Triaged

Bug description:
  see LP: #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-16

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Thomas Bonfort]

Stille present with 4.4.0-16 , and after updating BIOS to latest 1.3.3
version

** Description changed:

  see LP: #1552304
  
  does not affect 4.4.0-8
- affects 4.4.0-9 to 4.4.0-13
+ affects 4.4.0-9 to 4.4.0-16
  
  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in linux package in Ubuntu:
  Triaged

Bug description:
  see LP: #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-16

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1554613/+subscriptions

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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Thomas Bonfort]

upstream issue opened at :
https://bugs.freedesktop.org/show_bug.cgi?id=94593

** Bug watch added: freedesktop.org Bugzilla #94593
   https://bugs.freedesktop.org/show_bug.cgi?id=94593

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in linux package in Ubuntu:
  Triaged

Bug description:
  see LP: #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-13

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1554613/+subscriptions

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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Thomas Bonfort]

introduced in LP: #1540390

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  see LP: #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-13

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Thomas Bonfort]

4.5.0-040500 is still affected

** Tags removed: kernel-bug-exists-upstream-4.5-rc7
** Tags added: kernel-bug-exists-upstream-4.5

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https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  see LP: #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-13

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Thomas Bonfort]

After a couple of hours using 4.0.0.13 the flickering has re-appeared.

** Description changed:

  see #1552304
  
  does not affect 4.4.0-8
- affects 4.4.0-9 to 4.4.0-11
+ affects 4.4.0-9 to 4.4.0-13
  
  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
-  USERPID ACCESS COMMAND
-  /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
+  USERPID ACCESS COMMAND
+  /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
-  Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
-  Bus 001 Device 003: ID 0c45:670c Microdia 
-  Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp. 
-  Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
+  Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
+  Bus 001 Device 003: ID 0c45:670c Microdia
+  Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
+  Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
-  linux-restricted-modules-4.4.0-8-generic N/A
-  linux-backports-modules-4.4.0-8-generic  N/A
-  linux-firmware   1.156
+  linux-restricted-modules-4.4.0-8-generic N/A
+  linux-backports-modules-4.4.0-8-generic  N/A
+  linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  see #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-13

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Thomas Bonfort]

I have finished bisecting the commits and the switch from i915 to
i915_bpo seems to be the culprit. There are quite a few candidates but
that's because all those skipped commits failed to build/compile.

Note that on the first flicker after booting, this message appears in
dmesg:

[drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe A
FIFO underrun


Here is the log of the bisect:

git bisect start '--' 'drivers/gpu/' 'include/drm/' 'include/uapi/drm/' 
'ubuntu/i915'
# good: [463f21c6a2dcc90e06dbc2eb2341640ae5c43c28] UBUNTU: Ubuntu-4.4.0-8.23
git bisect good 463f21c6a2dcc90e06dbc2eb2341640ae5c43c28
# bad: [b8723f286caa9218ebda0c47a435d1b52b8dfaf4] UBUNTU: Ubuntu-4.4.0-9.24 

git bisect bad b8723f286caa9218ebda0c47a435d1b52b8dfaf4 

# good: [1cb8570bf04ab12a03c31c397a4d158f24895d9c] Linux 4.4.2  

git bisect good 1cb8570bf04ab12a03c31c397a4d158f24895d9c

# skip: [19ed21af1bffa667745926f2b8b28a0505cca0be] drm: Add "prefix" parameter 
to drm_rect_debug_print()
git bisect skip 19ed21af1bffa667745926f2b8b28a0505cca0be

# skip: [a9b3cdd235bf966b4cddab82d61dc941a74e3a74] UBUNTU: SAUCE: Backport 
I915_PARAM_HAS_EXEC_SOFTPIN and EXEC_OBJECT_PINNED  
 
git bisect skip a9b3cdd235bf966b4cddab82d61dc941a74e3a74

# skip: [8bfcd31065a60ffba9e600fafd62bbd90ff0895a] drm/atomic: Add encoder_mask 
to crtc_state, v3.  
git bisect skip 8bfcd31065a60ffba9e600fafd62bbd90ff0895a

# skip: [693a63075524374165196137ca4b952a6afd5265] drm/i915/kbl: Add Kabylake 
GT4 PCI ID
git bisect skip 693a63075524374165196137ca4b952a6afd5265

# good: [34f091b3d14dadd9ef8d1f8a678656aed759fe33] UBUNTU: SAUCE: radeon: r100: 
Silence 'may be used uninitialized' warnings

git bisect good 34f091b3d14dadd9ef8d1f8a678656aed759fe33

# skip: [abfd1387464d2e764989d8fbaea78b0b7af89142] drm/i915: Set 
connector_state->connector using the helper.   
git bisect skip abfd1387464d2e764989d8fbaea78b0b7af89142

# skip: [975bc60948107bce995ae5d18e0755dc5f2abf53] drm: fix potential dangling 
else problems in for_each_ macros
git bisect skip 975bc60948107bce995ae5d18e0755dc5f2abf53

# good: [98e1eef7fa2b711e0946d22a3c2659458582e807] drm/i915/skl: Disable coarse 
power gating up until F0
git bisect good 98e1eef7fa2b711e0946d22a3c2659458582e807

# skip: [1f955e92dc87f484048109bc1d434fa59221c5dd] drm/atomic: add connector 
mask to drm_crtc_state.
git bisect skip 1f955e92dc87f484048109bc1d434fa59221c5dd
# skip: [7d5329085d3e64b6b04a9de1c86f5074bac26cc9] drm/i915: Update 
connector_mask during readout, v2.
git bisect skip 7d5329085d3e64b6b04a9de1c86f5074bac26cc9
# skip: [8167675659a93004ae99d7b3aa90e1134352a836] drm: Implement 
drm_modeset_lock_all_ctx()
git bisect skip 8167675659a93004ae99d7b3aa90e1134352a836
# skip: [8ba5c26373f1e4341f2cbd198ddeb41644adf9b6] drm/atomic: Do not unset 
crtc when an encoder is stolen
git bisect skip 8ba5c26373f1e4341f2cbd198ddeb41644adf9b6
# skip: [197b480eac049b43e26cad615d2f541b5eab0238] drm/i915: Add get_eld audio 
component
git bisect skip 197b480eac049b43e26cad615d2f541b5eab0238
# skip: [59784e17027c76b7621c19393828dfd0aa1ffde5] UBUNTU: SAUCE: i915_bpo: Add 
i915_bpo_*() calls for ubuntu/i915
git bisect skip 59784e17027c76b7621c19393828dfd0aa1ffde5
# skip: [d34f93f031b9411cbc75444910d79edf8d0adca9] UBUNTU: SAUCE: i915_bpo: 
Revert passing plane/encoder name
git bisect skip d34f93f031b9411cbc75444910d79edf8d0adca9
# skip: [f1261c30584595faa9b03be3f66d69c7abe3df48] drm/i915: remove an extra 
level of indirection in PCI ID list
git bisect skip f1261c30584595faa9b03be3f66d69c7abe3df48
# skip: [6c8faa054473d42cec66420014fe14884cbb4a3c] drm/i915: Report context GTT 
size
git bisect skip 6c8faa054473d42cec66420014fe14884cbb4a3c
# skip: [881abf52cda63355e5cdc21bf7121d46e9212c93] UBUNTU: SAUCE: 
uapi/drm/i915: Backport I915_EXEC_BSD_MASK
git bisect skip 881abf52cda63355e5cdc21bf7121d46e9212c93
# skip: [06896b9eba1c833fbe31ff01ad10512aa8c4] dp/mst: add SDP stream 
support
git bisect skip 06896b9eba1c833fbe31ff01ad10512aa8c4
# skip: 

[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Christopher M. Penalver]

Thomas Bonfort. the issue you are reporting is an upstream one. Could
you please report this problem following the 1.1 - DRM Kernel
instructions verbatim at https://01.org/linuxgraphics/documentation/how-
report-bugs ?

Please provide a direct URL to your post when it becomes available so
that it may be tracked.

Thank you for your understanding.

** Changed in: linux (Ubuntu)
   Importance: Medium => High

** Changed in: linux (Ubuntu)
   Status: Confirmed => Triaged

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in linux package in Ubuntu:
  Triaged

Bug description:
  see LP: #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-13

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1554613/+subscriptions

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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Thomas Bonfort]

** Description changed:

- see #1552304
+ see LP: #1552304
  
  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-13
  
  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  see LP: #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-13

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Christopher M. Penalver]

** Tags removed: needs-bisect
** Tags added: bisect-done

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https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  see LP: #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-13

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Thomas Bonfort]

also present in 4.5.0-994-generic_4.5.0-994.201603152201 from drm-intel-
nightly

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Title:
  screen flickering on XPS13 9350

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  see LP: #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-13

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Thomas Bonfort]

I have tested 4.0.0-13 which does not seem to exhibit the flickering
present from 4.0.0-9 to 4.0.0-12. It does however now present tearing
artifacts when switching focus between windows, see
https://www.dropbox.com/s/opirfyzklathw3i/VID_20160316_112021.m4v?dl=0
for a screengrab.

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Title:
  screen flickering on XPS13 9350

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  see #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-11

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia 
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp. 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Thomas Bonfort]

Christopher,
Yes I have read that section but it is not useful as selecting between bad/good 
is already the required workflow. The issue is that the documentation refers to 
using the packaging scripts in the debian/ subdir, which is not present and/or 
usable in the intermediate bisecting steps.
I'm currently testing using this workflow, please advise if it is the correct 
one:

make mrproper && git clean -d -f && git checkout debian
git bisect good/bad/skip
cp /boot/config-4.4.0-8-generic .config
make oldconfig
make-kpkg --rootcmd=fakeroot --append-to-version "-04-deadbeef" --initrd --us 
--uc kernel_image -j4
#install and test kernel

here is my current bisect log. note that I have to skip many commits as
they fail to compile:

git bisect start '--' 'drivers/gpu/' 'include/drm/' 'include/uapi/drm/' 
'ubuntu/i915'
# good: [463f21c6a2dcc90e06dbc2eb2341640ae5c43c28] UBUNTU: Ubuntu-4.4.0-8.23
git bisect good 463f21c6a2dcc90e06dbc2eb2341640ae5c43c28
# bad: [b8723f286caa9218ebda0c47a435d1b52b8dfaf4] UBUNTU: Ubuntu-4.4.0-9.24
git bisect bad b8723f286caa9218ebda0c47a435d1b52b8dfaf4
# good: [1cb8570bf04ab12a03c31c397a4d158f24895d9c] Linux 4.4.2
git bisect good 1cb8570bf04ab12a03c31c397a4d158f24895d9c
# skip: [19ed21af1bffa667745926f2b8b28a0505cca0be] drm: Add "prefix" parameter 
to drm_rect_debug_print()
git bisect skip 19ed21af1bffa667745926f2b8b28a0505cca0be
# skip: [a9b3cdd235bf966b4cddab82d61dc941a74e3a74] UBUNTU: SAUCE: Backport 
I915_PARAM_HAS_EXEC_SOFTPIN and EXEC_OBJECT_PINNED
git bisect skip a9b3cdd235bf966b4cddab82d61dc941a74e3a74
# skip: [8bfcd31065a60ffba9e600fafd62bbd90ff0895a] drm/atomic: Add encoder_mask 
to crtc_state, v3.
git bisect skip 8bfcd31065a60ffba9e600fafd62bbd90ff0895a
# skip: [693a63075524374165196137ca4b952a6afd5265] drm/i915/kbl: Add Kabylake 
GT4 PCI ID
git bisect skip 693a63075524374165196137ca4b952a6afd5265
# good: [34f091b3d14dadd9ef8d1f8a678656aed759fe33] UBUNTU: SAUCE: radeon: r100: 
Silence 'may be used uninitialized' warnings
git bisect good 34f091b3d14dadd9ef8d1f8a678656aed759fe33
# skip: [abfd1387464d2e764989d8fbaea78b0b7af89142] drm/i915: Set 
connector_state->connector using the helper.
git bisect skip abfd1387464d2e764989d8fbaea78b0b7af89142
# skip: [975bc60948107bce995ae5d18e0755dc5f2abf53] drm: fix potential dangling 
else problems in for_each_ macros
git bisect skip 975bc60948107bce995ae5d18e0755dc5f2abf53
# good: [98e1eef7fa2b711e0946d22a3c2659458582e807] drm/i915/skl: Disable coarse 
power gating up until F0
git bisect good 98e1eef7fa2b711e0946d22a3c2659458582e807
# skip: [1f955e92dc87f484048109bc1d434fa59221c5dd] drm/atomic: add connector 
mask to drm_crtc_state.
git bisect skip 1f955e92dc87f484048109bc1d434fa59221c5dd
# skip: [7d5329085d3e64b6b04a9de1c86f5074bac26cc9] drm/i915: Update 
connector_mask during readout, v2.
git bisect skip 7d5329085d3e64b6b04a9de1c86f5074bac26cc9
# skip: [8167675659a93004ae99d7b3aa90e1134352a836] drm: Implement 
drm_modeset_lock_all_ctx()
git bisect skip 8167675659a93004ae99d7b3aa90e1134352a836
# skip: [8ba5c26373f1e4341f2cbd198ddeb41644adf9b6] drm/atomic: Do not unset 
crtc when an encoder is stolen
git bisect skip 8ba5c26373f1e4341f2cbd198ddeb41644adf9b6
# skip: [197b480eac049b43e26cad615d2f541b5eab0238] drm/i915: Add get_eld audio 
component
git bisect skip 197b480eac049b43e26cad615d2f541b5eab0238
# skip: [59784e17027c76b7621c19393828dfd0aa1ffde5] UBUNTU: SAUCE: i915_bpo: Add 
i915_bpo_*() calls for ubuntu/i915
git bisect skip 59784e17027c76b7621c19393828dfd0aa1ffde5

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Title:
  screen flickering on XPS13 9350

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  see #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-11

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia 
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp. 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   

[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Christopher M. Penalver]

Thomas Bonfort, have you had a chance to review the section
https://wiki.ubuntu.com/Kernel/KernelBisection#Bisecting:_a_merge_base_must_be_tested
?

** Changed in: linux (Ubuntu)
   Status: Confirmed => Incomplete

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Title:
  screen flickering on XPS13 9350

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  see #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-11

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia 
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp. 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[pranith]

I think this bug is caused by the backported i915 driver in 4.4.0-9
which is being loaded as i915_bpo.

** Changed in: linux (Ubuntu)
   Status: Incomplete => Confirmed

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  see #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-11

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia 
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp. 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1554613/+subscriptions

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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Thomas Bonfort]

I'm unable to run the bisection. The first bisect step between
Ubuntu-4.4.0-8.23 and Ubuntu-4.4.0-9.24 from
git://kernel.ubuntu.com/ubuntu/ubuntu-xenial.git outputs "Bisecting: a
merge base must be tested" and leaves me in a state where I have no
debian/ subdir to allow me to launch the build

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https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  see #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-11

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia 
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp. 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Christopher M. Penalver]

Thomas Bonfort, the next step is to fully commit bisect from kernel
4.4.0-8 to 4.4.0-9 in order to identify the last good kernel commit,
followed immediately by the first bad one. This will allow for a more
expedited analysis of the root cause of your issue. Could you please do
this following https://wiki.ubuntu.com/Kernel/KernelBisection ?

Please note, finding adjacent kernel versions is not fully commit
bisecting.

After the offending commit (not kernel version) has been identified,
then please mark this report Status Confirmed.

Thank you for your understanding.

Helpful bug reporting tips:
https://wiki.ubuntu.com/ReportingBugs

** Tags added: needs-bisect

** Changed in: linux (Ubuntu)
   Status: Confirmed => Incomplete

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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  see #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-11

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia 
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp. 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Thomas Bonfort]

** Tags added: kernel-bug-exists-upstream

** Changed in: linux (Ubuntu)
   Status: Incomplete => Confirmed

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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  see #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-11

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia 
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp. 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Thomas Bonfort]

I have tested 4.5.0-040500rc7-generic  which is affected. I've added the
kernel-bug-exists-upstream-4.5-rc7 tag, let me know if that what you
were expecting from me.

** Tags added: kernel-bug-exists-upstream-4.5-rc7

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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  see #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-11

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia 
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp. 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1554613/+subscriptions

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[Kernel-packages] [Bug 1554613] Re: screen flickering on XPS13 9350

[Christopher M. Penalver]

Thomas Bonfort, thank you for reporting this and helping make Ubuntu
better.

In order to allow additional upstream developers to examine the issue, at your 
earliest convenience, could you please test the latest upstream kernel 
available from http://kernel.ubuntu.com/~kernel-ppa/mainline/?C=N;O=D ? Please 
keep in mind the following:
1) The one to test is at the very top line at the top of the page (not the 
daily folder).
2) The release names are irrelevant.
3) The folder time stamps aren't indicative of when the kernel actually was 
released upstream.
4) Install instructions are available at 
https://wiki.ubuntu.com/Kernel/MainlineBuilds .

If testing on your main install would be inconvenient, one may:
1) Install Ubuntu to a different partition and then test this there.
2) Backup, or clone the primary install.

If the latest kernel did not allow you to test to the issue (ex. you couldn't 
boot into the OS) please make a comment in your report about this, and continue 
to test the next most recent kernel version until you can test to the issue. 
Once you've tested the upstream kernel, please comment on which kernel version 
specifically you tested. If this issue is fixed in the mainline kernel, please 
add the following tags by clicking on the yellow circle with a black pencil 
icon, next to the word Tags, located at the bottom of the report description:
kernel-fixed-upstream
kernel-fixed-upstream-X.Y-rcZ

Where X, and Y are the first two numbers of the kernel version, and Z is
the release candidate number if it exists.

If the mainline kernel does not fix the issue, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-X.Y-rcZ

Please note, an error to install the kernel does not fit the criteria of
kernel-bug-exists-upstream.

Also, you don't need to apport-collect further unless specifically
requested to do so.

Once testing of the latest upstream kernel is complete, please mark this
report Status Confirmed. Please let us know your results.

Thank you for your understanding.

** Tags added: latest-bios-1.2.3

** Changed in: linux (Ubuntu)
   Importance: Undecided => Medium

** Changed in: linux (Ubuntu)
   Status: New => Incomplete

** Tags added: regression-release

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1554613

Title:
  screen flickering on XPS13 9350

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  see #1552304

  does not affect 4.4.0-8
  affects 4.4.0-9 to 4.4.0-11

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.11.12
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  Uname: Linux 4.4.0-8-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  tbonfort   1498 F pulseaudio
  CurrentDesktop: KDE
  Date: Tue Mar  8 09:57:12 2016
  HibernationDevice: RESUME=UUID=3248e0d7-0dac-4ccc-8982-b5ac5ce6ed5e
  InstallationDate: Installed on 2016-01-07 (61 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0c45:670c Microdia 
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp. 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-8-generic 
root=UUID=757547b8-d0e4-4eb8-8afd-920b743f99a4 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware   1.156
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-02-28 (9 days ago)
  dmi.bios.date: 01/08/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.3
  dmi.board.name: 07TYC2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.3:bd01/08/2016:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn07TYC2:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1554613/+subscriptions

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