[Kernel-packages] [Bug 1568865] Re: [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe B FIFO underrun

[Brad Figg]

*** This bug is a duplicate of bug 1550779 ***
https://bugs.launchpad.net/bugs/1550779

** Tags added: cscc

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https://bugs.launchpad.net/bugs/1568865

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

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Running Gnome-Shell on ubuntu 16.04 on my Dell XPS 15 9550 laptop
  using Intel graphics (Nvidia card turned off), I get this error in
  syslog when plugging in an external monitor (HDMI).

  Apr 11 14:28:38 miaco kernel: [ 2616.604641]
  [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe
  B FIFO underrun


  Meanwhile both screens flash and show corruption. Most of the time
  this has caused a hang that needs a hard power off to get out of, but
  occasionally removing the external monitor is enough to get going
  again and so I've been able to find this message in the logs.

  Note that when using Nvidia (proprietary) drivers and Unity DE I do
  not have this problem; so it seems to be related to the intel drivers,
  or possibly Gnome Shell's use of them.

  Happy to help if I can (would like to be able to use external
  monitors!)

  Rich

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-18-generic 4.4.0-18.34
  ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6
  Uname: Linux 4.4.0-18-generic x86_64
  ApportVersion: 2.20.1-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  rich   1943 F pulseaudio
  Date: Mon Apr 11 14:31:26 2016
  InstallationDate: Installed on 2016-03-21 (21 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160307)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 04f3:21d5 Elan Microelectronics Corp. 
   Bus 001 Device 002: ID 0a5c:6410 Broadcom Corp. 
   Bus 001 Device 004: ID 0c45:6713 Microdia 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 15 9550
  ProcEnviron:
   LANGUAGE=en_GB:en
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-18-generic.efi.signed 
root=UUID=3f8391d5-e9cc-4768-8efb-8f04d340567c ro quiet splash vt.handoff=7
  PulseList:
   Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not 
accessible: Permission denied
   No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-18-generic N/A
   linux-backports-modules-4.4.0-18-generic  N/A
   linux-firmware1.157
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/25/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 01.01.19
  dmi.board.name: 0N7TVV
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr01.01.19:bd01/25/2016:svnDellInc.:pnXPS159550:pvr:rvnDellInc.:rn0N7TVV:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 15 9550
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1568865] Re: [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe B FIFO underrun

[Daniel van Vugt]

*** This bug is a duplicate of bug 1550779 ***
https://bugs.launchpad.net/bugs/1550779

** This bug has been marked a duplicate of bug 1550779
   [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *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/1568865

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

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Running Gnome-Shell on ubuntu 16.04 on my Dell XPS 15 9550 laptop
  using Intel graphics (Nvidia card turned off), I get this error in
  syslog when plugging in an external monitor (HDMI).

  Apr 11 14:28:38 miaco kernel: [ 2616.604641]
  [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe
  B FIFO underrun


  Meanwhile both screens flash and show corruption. Most of the time
  this has caused a hang that needs a hard power off to get out of, but
  occasionally removing the external monitor is enough to get going
  again and so I've been able to find this message in the logs.

  Note that when using Nvidia (proprietary) drivers and Unity DE I do
  not have this problem; so it seems to be related to the intel drivers,
  or possibly Gnome Shell's use of them.

  Happy to help if I can (would like to be able to use external
  monitors!)

  Rich

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-18-generic 4.4.0-18.34
  ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6
  Uname: Linux 4.4.0-18-generic x86_64
  ApportVersion: 2.20.1-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  rich   1943 F pulseaudio
  Date: Mon Apr 11 14:31:26 2016
  InstallationDate: Installed on 2016-03-21 (21 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160307)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 04f3:21d5 Elan Microelectronics Corp. 
   Bus 001 Device 002: ID 0a5c:6410 Broadcom Corp. 
   Bus 001 Device 004: ID 0c45:6713 Microdia 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 15 9550
  ProcEnviron:
   LANGUAGE=en_GB:en
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-18-generic.efi.signed 
root=UUID=3f8391d5-e9cc-4768-8efb-8f04d340567c ro quiet splash vt.handoff=7
  PulseList:
   Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not 
accessible: Permission denied
   No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-18-generic N/A
   linux-backports-modules-4.4.0-18-generic  N/A
   linux-firmware1.157
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/25/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 01.01.19
  dmi.board.name: 0N7TVV
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr01.01.19:bd01/25/2016:svnDellInc.:pnXPS159550:pvr:rvnDellInc.:rn0N7TVV:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 15 9550
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1568865] Re: [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe B FIFO underrun

[RCV]

I see the same behavior after upgrading from 16.10 to 17.10.

[drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO
underrun


This happens very often (not always) after the computer turn off the screen due 
to inactivity.

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1568865

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

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Running Gnome-Shell on ubuntu 16.04 on my Dell XPS 15 9550 laptop
  using Intel graphics (Nvidia card turned off), I get this error in
  syslog when plugging in an external monitor (HDMI).

  Apr 11 14:28:38 miaco kernel: [ 2616.604641]
  [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe
  B FIFO underrun


  Meanwhile both screens flash and show corruption. Most of the time
  this has caused a hang that needs a hard power off to get out of, but
  occasionally removing the external monitor is enough to get going
  again and so I've been able to find this message in the logs.

  Note that when using Nvidia (proprietary) drivers and Unity DE I do
  not have this problem; so it seems to be related to the intel drivers,
  or possibly Gnome Shell's use of them.

  Happy to help if I can (would like to be able to use external
  monitors!)

  Rich

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-18-generic 4.4.0-18.34
  ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6
  Uname: Linux 4.4.0-18-generic x86_64
  ApportVersion: 2.20.1-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  rich   1943 F pulseaudio
  Date: Mon Apr 11 14:31:26 2016
  InstallationDate: Installed on 2016-03-21 (21 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160307)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 04f3:21d5 Elan Microelectronics Corp. 
   Bus 001 Device 002: ID 0a5c:6410 Broadcom Corp. 
   Bus 001 Device 004: ID 0c45:6713 Microdia 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 15 9550
  ProcEnviron:
   LANGUAGE=en_GB:en
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-18-generic.efi.signed 
root=UUID=3f8391d5-e9cc-4768-8efb-8f04d340567c ro quiet splash vt.handoff=7
  PulseList:
   Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not 
accessible: Permission denied
   No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-18-generic N/A
   linux-backports-modules-4.4.0-18-generic  N/A
   linux-firmware1.157
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/25/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 01.01.19
  dmi.board.name: 0N7TVV
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr01.01.19:bd01/25/2016:svnDellInc.:pnXPS159550:pvr:rvnDellInc.:rn0N7TVV:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 15 9550
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1568865/+subscriptions

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[Kernel-packages] [Bug 1568865] Re: [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe B FIFO underrun

[Oscar Muñoz]

Turn on the laptop whit/whitout VGA external conected, connected and
then wait to blank screen or simple close your laptop.

I get a blank screen and the follow log:
Jun 19 07:01:03 oemunoz kernel: [  753.076621] 
[drm:intel_set_pch_fifo_underrun_reporting [i915]] *ERROR* uncleared pch fifo 
underrun on pch transcoder A
Jun 19 07:01:03 oemunoz kernel: [  753.076638] 
[drm:intel_pch_fifo_underrun_irq_handler [i915]] *ERROR* PCH transcoder A FIFO 
underrun
Jun 19 07:01:03 oemunoz kernel: [  753.082360] 
[drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR* uncleared fifo 
underrun on pipe B
Jun 19 07:01:03 oemunoz kernel: [  753.082376] 
[drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO 
underrun 

My setup:

product: 20AWS0JV0A (LENOVO_MT_20AW_BU_Think_FM_ThinkPad T440p)
vendor: LENOVO
version: ThinkPad T440p

00:02.0 VGA compatible controller [0300]: Intel Corporation 4th Gen Core 
Processor Integrated Graphics Controller [8086:0416] (rev 06) (prog-if 00 [VGA 
controller])
Subsystem: Lenovo ThinkPad T440p [17aa:220e]
Flags: bus master, fast devsel, latency 0, IRQ 29
Memory at f000 (64-bit, non-prefetchable) [size=4M]
Memory at e000 (64-bit, prefetchable) [size=256M]
I/O ports at 3000 [size=64]
Expansion ROM at  [disabled]
Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [d0] Power Management version 2
Capabilities: [a4] PCI Advanced Features
Kernel driver in use: i915
Kernel modules: i915

Linux oemunoz 4.4.0-79-generic #100-Ubuntu SMP Wed May 17 19:58:14 UTC
2017 x86_64 x86_64 x86_64 GNU/Linux

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1568865

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

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Running Gnome-Shell on ubuntu 16.04 on my Dell XPS 15 9550 laptop
  using Intel graphics (Nvidia card turned off), I get this error in
  syslog when plugging in an external monitor (HDMI).

  Apr 11 14:28:38 miaco kernel: [ 2616.604641]
  [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe
  B FIFO underrun


  Meanwhile both screens flash and show corruption. Most of the time
  this has caused a hang that needs a hard power off to get out of, but
  occasionally removing the external monitor is enough to get going
  again and so I've been able to find this message in the logs.

  Note that when using Nvidia (proprietary) drivers and Unity DE I do
  not have this problem; so it seems to be related to the intel drivers,
  or possibly Gnome Shell's use of them.

  Happy to help if I can (would like to be able to use external
  monitors!)

  Rich

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-18-generic 4.4.0-18.34
  ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6
  Uname: Linux 4.4.0-18-generic x86_64
  ApportVersion: 2.20.1-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  rich   1943 F pulseaudio
  Date: Mon Apr 11 14:31:26 2016
  InstallationDate: Installed on 2016-03-21 (21 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160307)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 04f3:21d5 Elan Microelectronics Corp. 
   Bus 001 Device 002: ID 0a5c:6410 Broadcom Corp. 
   Bus 001 Device 004: ID 0c45:6713 Microdia 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 15 9550
  ProcEnviron:
   LANGUAGE=en_GB:en
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-18-generic.efi.signed 
root=UUID=3f8391d5-e9cc-4768-8efb-8f04d340567c ro quiet splash vt.handoff=7
  PulseList:
   Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not 
accessible: Permission denied
   No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-18-generic N/A
   linux-backports-modules-4.4.0-18-generic  N/A
   linux-firmware1.157
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/25/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 01.01.19
  dmi.board.name: 0N7TVV
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr01.01.19:bd01/25/2016:svnDellInc.:pnXPS159550:pvr:rvnDellInc.:rn0N7TVV:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 15 9550
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubu

[Kernel-packages] [Bug 1568865] Re: [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe B FIFO underrun

[Tharrrk]

Happened here for the first time - Dell E7470, Intel CPU+GPU, no other
card.

Ubuntu 16.04 (KDE neon User Edition 5.9)
4.4.0-64-lowlatency #85-Ubuntu SMP PREEMPT Mon Feb 20 12:39:25 UTC 2017 x86_64 
x86_64 x86_64 GNU/Linux

-- 
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/1568865

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

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Running Gnome-Shell on ubuntu 16.04 on my Dell XPS 15 9550 laptop
  using Intel graphics (Nvidia card turned off), I get this error in
  syslog when plugging in an external monitor (HDMI).

  Apr 11 14:28:38 miaco kernel: [ 2616.604641]
  [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe
  B FIFO underrun


  Meanwhile both screens flash and show corruption. Most of the time
  this has caused a hang that needs a hard power off to get out of, but
  occasionally removing the external monitor is enough to get going
  again and so I've been able to find this message in the logs.

  Note that when using Nvidia (proprietary) drivers and Unity DE I do
  not have this problem; so it seems to be related to the intel drivers,
  or possibly Gnome Shell's use of them.

  Happy to help if I can (would like to be able to use external
  monitors!)

  Rich

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-18-generic 4.4.0-18.34
  ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6
  Uname: Linux 4.4.0-18-generic x86_64
  ApportVersion: 2.20.1-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  rich   1943 F pulseaudio
  Date: Mon Apr 11 14:31:26 2016
  InstallationDate: Installed on 2016-03-21 (21 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160307)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 04f3:21d5 Elan Microelectronics Corp. 
   Bus 001 Device 002: ID 0a5c:6410 Broadcom Corp. 
   Bus 001 Device 004: ID 0c45:6713 Microdia 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 15 9550
  ProcEnviron:
   LANGUAGE=en_GB:en
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-18-generic.efi.signed 
root=UUID=3f8391d5-e9cc-4768-8efb-8f04d340567c ro quiet splash vt.handoff=7
  PulseList:
   Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not 
accessible: Permission denied
   No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-18-generic N/A
   linux-backports-modules-4.4.0-18-generic  N/A
   linux-firmware1.157
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/25/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 01.01.19
  dmi.board.name: 0N7TVV
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr01.01.19:bd01/25/2016:svnDellInc.:pnXPS159550:pvr:rvnDellInc.:rn0N7TVV:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 15 9550
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1568865/+subscriptions

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[Kernel-packages] [Bug 1568865] Re: [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe B FIFO underrun

[milton hagler]

I have a Lenovo T460P with Nvidia Geforce 940M, same issue on wake up
from suspend. I7-6700HQ 2.60GHz, 16.04 x64, kernel 4.4.0-53-generic.
Running Nvidia driver 367.57 (open source).

-- 
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/1568865

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

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Running Gnome-Shell on ubuntu 16.04 on my Dell XPS 15 9550 laptop
  using Intel graphics (Nvidia card turned off), I get this error in
  syslog when plugging in an external monitor (HDMI).

  Apr 11 14:28:38 miaco kernel: [ 2616.604641]
  [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe
  B FIFO underrun


  Meanwhile both screens flash and show corruption. Most of the time
  this has caused a hang that needs a hard power off to get out of, but
  occasionally removing the external monitor is enough to get going
  again and so I've been able to find this message in the logs.

  Note that when using Nvidia (proprietary) drivers and Unity DE I do
  not have this problem; so it seems to be related to the intel drivers,
  or possibly Gnome Shell's use of them.

  Happy to help if I can (would like to be able to use external
  monitors!)

  Rich

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-18-generic 4.4.0-18.34
  ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6
  Uname: Linux 4.4.0-18-generic x86_64
  ApportVersion: 2.20.1-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  rich   1943 F pulseaudio
  Date: Mon Apr 11 14:31:26 2016
  InstallationDate: Installed on 2016-03-21 (21 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160307)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 04f3:21d5 Elan Microelectronics Corp. 
   Bus 001 Device 002: ID 0a5c:6410 Broadcom Corp. 
   Bus 001 Device 004: ID 0c45:6713 Microdia 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 15 9550
  ProcEnviron:
   LANGUAGE=en_GB:en
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-18-generic.efi.signed 
root=UUID=3f8391d5-e9cc-4768-8efb-8f04d340567c ro quiet splash vt.handoff=7
  PulseList:
   Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not 
accessible: Permission denied
   No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-18-generic N/A
   linux-backports-modules-4.4.0-18-generic  N/A
   linux-firmware1.157
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/25/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 01.01.19
  dmi.board.name: 0N7TVV
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr01.01.19:bd01/25/2016:svnDellInc.:pnXPS159550:pvr:rvnDellInc.:rn0N7TVV:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 15 9550
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1568865] Re: [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe B FIFO underrun

[Rodolpho Pivetta Sabino]

I have an Asus X555UB laptop with Geforce 940M active and this error
happens with me when I try to wake up from suspend mode.

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

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Running Gnome-Shell on ubuntu 16.04 on my Dell XPS 15 9550 laptop
  using Intel graphics (Nvidia card turned off), I get this error in
  syslog when plugging in an external monitor (HDMI).

  Apr 11 14:28:38 miaco kernel: [ 2616.604641]
  [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe
  B FIFO underrun


  Meanwhile both screens flash and show corruption. Most of the time
  this has caused a hang that needs a hard power off to get out of, but
  occasionally removing the external monitor is enough to get going
  again and so I've been able to find this message in the logs.

  Note that when using Nvidia (proprietary) drivers and Unity DE I do
  not have this problem; so it seems to be related to the intel drivers,
  or possibly Gnome Shell's use of them.

  Happy to help if I can (would like to be able to use external
  monitors!)

  Rich

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-18-generic 4.4.0-18.34
  ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6
  Uname: Linux 4.4.0-18-generic x86_64
  ApportVersion: 2.20.1-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  rich   1943 F pulseaudio
  Date: Mon Apr 11 14:31:26 2016
  InstallationDate: Installed on 2016-03-21 (21 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160307)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 04f3:21d5 Elan Microelectronics Corp. 
   Bus 001 Device 002: ID 0a5c:6410 Broadcom Corp. 
   Bus 001 Device 004: ID 0c45:6713 Microdia 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 15 9550
  ProcEnviron:
   LANGUAGE=en_GB:en
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-18-generic.efi.signed 
root=UUID=3f8391d5-e9cc-4768-8efb-8f04d340567c ro quiet splash vt.handoff=7
  PulseList:
   Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not 
accessible: Permission denied
   No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-18-generic N/A
   linux-backports-modules-4.4.0-18-generic  N/A
   linux-firmware1.157
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/25/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 01.01.19
  dmi.board.name: 0N7TVV
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr01.01.19:bd01/25/2016:svnDellInc.:pnXPS159550:pvr:rvnDellInc.:rn0N7TVV:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 15 9550
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1568865] Re: [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe B FIFO underrun

[jhouse]

Kernel 4.4.11 (from http://kernel.ubuntu.com/~kernel-ppa/mainline/)
seems to work with the Nouveau driver, without a freeze.  (have only
tested for a short period of time thus far).

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1568865

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

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Running Gnome-Shell on ubuntu 16.04 on my Dell XPS 15 9550 laptop
  using Intel graphics (Nvidia card turned off), I get this error in
  syslog when plugging in an external monitor (HDMI).

  Apr 11 14:28:38 miaco kernel: [ 2616.604641]
  [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe
  B FIFO underrun


  Meanwhile both screens flash and show corruption. Most of the time
  this has caused a hang that needs a hard power off to get out of, but
  occasionally removing the external monitor is enough to get going
  again and so I've been able to find this message in the logs.

  Note that when using Nvidia (proprietary) drivers and Unity DE I do
  not have this problem; so it seems to be related to the intel drivers,
  or possibly Gnome Shell's use of them.

  Happy to help if I can (would like to be able to use external
  monitors!)

  Rich

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-18-generic 4.4.0-18.34
  ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6
  Uname: Linux 4.4.0-18-generic x86_64
  ApportVersion: 2.20.1-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  rich   1943 F pulseaudio
  Date: Mon Apr 11 14:31:26 2016
  InstallationDate: Installed on 2016-03-21 (21 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160307)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 04f3:21d5 Elan Microelectronics Corp. 
   Bus 001 Device 002: ID 0a5c:6410 Broadcom Corp. 
   Bus 001 Device 004: ID 0c45:6713 Microdia 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 15 9550
  ProcEnviron:
   LANGUAGE=en_GB:en
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-18-generic.efi.signed 
root=UUID=3f8391d5-e9cc-4768-8efb-8f04d340567c ro quiet splash vt.handoff=7
  PulseList:
   Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not 
accessible: Permission denied
   No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-18-generic N/A
   linux-backports-modules-4.4.0-18-generic  N/A
   linux-firmware1.157
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/25/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 01.01.19
  dmi.board.name: 0N7TVV
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr01.01.19:bd01/25/2016:svnDellInc.:pnXPS159550:pvr:rvnDellInc.:rn0N7TVV:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 15 9550
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1568865/+subscriptions

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[Kernel-packages] [Bug 1568865] Re: [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe B FIFO underrun

[jhouse]

Using the 4.6.0 kernel, and NVidia driver (rather than Nouveau) I can
plug in HDMI monitor and not freeze.  (my previous post reporting a
freeze with 4.6 kernel was using Nouveau driver).

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1568865

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

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Running Gnome-Shell on ubuntu 16.04 on my Dell XPS 15 9550 laptop
  using Intel graphics (Nvidia card turned off), I get this error in
  syslog when plugging in an external monitor (HDMI).

  Apr 11 14:28:38 miaco kernel: [ 2616.604641]
  [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe
  B FIFO underrun


  Meanwhile both screens flash and show corruption. Most of the time
  this has caused a hang that needs a hard power off to get out of, but
  occasionally removing the external monitor is enough to get going
  again and so I've been able to find this message in the logs.

  Note that when using Nvidia (proprietary) drivers and Unity DE I do
  not have this problem; so it seems to be related to the intel drivers,
  or possibly Gnome Shell's use of them.

  Happy to help if I can (would like to be able to use external
  monitors!)

  Rich

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-18-generic 4.4.0-18.34
  ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6
  Uname: Linux 4.4.0-18-generic x86_64
  ApportVersion: 2.20.1-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  rich   1943 F pulseaudio
  Date: Mon Apr 11 14:31:26 2016
  InstallationDate: Installed on 2016-03-21 (21 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160307)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 04f3:21d5 Elan Microelectronics Corp. 
   Bus 001 Device 002: ID 0a5c:6410 Broadcom Corp. 
   Bus 001 Device 004: ID 0c45:6713 Microdia 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 15 9550
  ProcEnviron:
   LANGUAGE=en_GB:en
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-18-generic.efi.signed 
root=UUID=3f8391d5-e9cc-4768-8efb-8f04d340567c ro quiet splash vt.handoff=7
  PulseList:
   Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not 
accessible: Permission denied
   No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-18-generic N/A
   linux-backports-modules-4.4.0-18-generic  N/A
   linux-firmware1.157
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/25/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 01.01.19
  dmi.board.name: 0N7TVV
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr01.01.19:bd01/25/2016:svnDellInc.:pnXPS159550:pvr:rvnDellInc.:rn0N7TVV:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 15 9550
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1568865/+subscriptions

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[Kernel-packages] [Bug 1568865] Re: [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe B FIFO underrun

[jhouse]

Actually I just tried the 4.6 kernel that was officially released 2 days
ago, and I still get a freeze when attaching monitor to HDMI.However
the symptoms are different.

The external monitor does get the desktop drawn on it, and I can move
the mouse around, and between the monitors.  But the interface is
otherwise frozen:  the clock on the screen stops "ticking" and no
windows can be interacted with.  Also cannot hit CTRL+ALT+F3 to get to a
tty screen.

Furthermore the logging in syslog is different:


May 18 13:29:58 squan /usr/lib/gdm3/gdm-x-session[1313]: (--) intel(0): HDMI 
max TMDS frequency 30KHz
May 18 13:29:58 squan /usr/lib/gdm3/gdm-x-session[1313]: (II) intel(0): 
resizing framebuffer to 7680x2160
May 18 13:29:58 squan /usr/lib/gdm3/gdm-x-session[1313]: (II) intel(0): switch 
to mode 3840x2160@60.0 on eDP1 using pipe 1, position (0, 0), rotation normal, 
reflection none
May 18 13:29:59 squan /usr/lib/gdm3/gdm-x-session[1313]: (II) intel(0): switch 
to mode 3840x2160@30.0 on HDMI1 using pipe 0, position (3840, 0), rotation 
normal, reflection none
May 18 13:29:59 squan /usr/lib/gdm3/gdm-x-session[1313]: (--) intel(0): HDMI 
max TMDS frequency 30KHz
May 18 13:30:04 squan systemd[1]: Starting Stop ureadahead data collection...
May 18 13:30:04 squan systemd[1]: Stopped Read required files in advance.
May 18 13:30:04 squan systemd[1]: Started Stop ureadahead data collection.
May 18 13:30:05 squan /usr/lib/gdm3/gdm-x-session[1313]: (EE) [mi] EQ 
overflowing.  Additional events will be discarded until existing events are 
processed.
May 18 13:30:05 squan /usr/lib/gdm3/gdm-x-session[1313]: (EE)
May 18 13:30:05 squan /usr/lib/gdm3/gdm-x-session[1313]: (EE) Backtrace:
May 18 13:30:05 squan /usr/lib/gdm3/gdm-x-session[1313]: (EE) 0: 
/usr/lib/xorg/Xorg (xorg_backtrace+0x4e) [0x55e9082ae50e]
May 18 13:30:05 squan /usr/lib/gdm3/gdm-x-session[1313]: (EE) 1: 
/usr/lib/xorg/Xorg (mieqEnqueue+0x253) [0x55e90828ffd3]
May 18 13:30:05 squan /usr/lib/gdm3/gdm-x-session[1313]: (EE) 2: 
/usr/lib/xorg/Xorg (QueuePointerEvents+0x52) [0x55e908168672]
May 18 13:30:05 squan /usr/lib/gdm3/gdm-x-session[1313]: (EE) 3: 
/usr/lib/xorg/Xorg (xf86PostMotionEvent+0xd6) [0x55e90819fb56]
May 18 13:30:05 squan /usr/lib/gdm3/gdm-x-session[1313]: (EE) 4: 
/usr/lib/xorg/modules/input/synaptics_drv.so (0x7f50831b1000+0x6056) 
[0x7f50831b7056]
May 18 13:30:05 squan /usr/lib/gdm3/gdm-x-session[1313]: (EE) 5: 
/usr/lib/xorg/modules/input/synaptics_drv.so (0x7f50831b1000+0x7682) 
[0x7f50831b8682]
May 18 13:30:05 squan /usr/lib/gdm3/gdm-x-session[1313]: (EE) 6: 
/usr/lib/xorg/Xorg (0x55e9080fc000+0x94248) [0x55e908190248]
May 18 13:30:05 squan /usr/lib/gdm3/gdm-x-session[1313]: (EE) 7: 
/usr/lib/xorg/Xorg (0x55e9080fc000+0xb9712) [0x55e9081b5712]
May 18 13:30:05 squan /usr/lib/gdm3/gdm-x-session[1313]: (EE) 8: 
/lib/x86_64-linux-gnu/libc.so.6 (0x7f508c80d000+0x354a0) [0x7f508c8424a0]
May 18 13:30:05 squan /usr/lib/gdm3/gdm-x-session[1313]: (EE) 9: 
/usr/lib/xorg/Xorg (0x55e9080fc000+0x1b6cf0) [0x55e9082b2cf0]
May 18 13:30:05 squan /usr/lib/gdm3/gdm-x-session[1313]: (EE) 10: 
/lib/x86_64-linux-gnu/libc.so.6 (0x7f508c80d000+0x354a0) [0x7f508c8424a0]
May 18 13:30:05 squan /usr/lib/gdm3/gdm-x-session[1313]: (EE) 11: 
/lib/x86_64-linux-gnu/libc.so.6 (ioctl+0x7) [0x7f508c909687]
May 18 13:30:05 squan /usr/lib/gdm3/gdm-x-session[1313]: (EE) 12: 
/usr/lib/x86_64-linux-gnu/libdrm.so.2 (drmIoctl+0x28) [0x7f508dbef0f8]
May 18 13:30:05 squan /usr/lib/gdm3/gdm-x-session[1313]: (EE) 13: 
/usr/lib/xorg/modules/drivers/intel_drv.so (0x7f50889e1000+0x763ea) 
[0x7f5088a573ea]
May 18 13:30:05 squan /usr/lib/gdm3/gdm-x-session[1313]: (EE) 14: 
/usr/lib/xorg/modules/drivers/intel_drv.so (0x7f50889e1000+0x106c39) 
[0x7f5088ae7c39]
May 18 13:30:05 squan /usr/lib/gdm3/gdm-x-session[1313]: (EE) 15: 
/usr/lib/xorg/modules/drivers/intel_drv.so (0x7f50889e1000+0x108571) 
[0x7f5088ae9571]
May 18 13:30:05 squan /usr/lib/gdm3/gdm-x-session[1313]: (EE) 16: 
/usr/lib/xorg/Xorg (DRI2SwapBuffers+0x1c8) [0x55e908280a98]
May 18 13:30:05 squan /usr/lib/gdm3/gdm-x-session[1313]: (EE) 17: 
/usr/lib/xorg/Xorg (0x55e9080fc000+0x18632c) [0x55e90828232c]
May 18 13:30:05 squan /usr/lib/gdm3/gdm-x-session[1313]: (EE) 18: 
/usr/lib/xorg/Xorg (0x55e9080fc000+0x53bbf) [0x55e90814fbbf]
May 18 13:30:05 squan /usr/lib/gdm3/gdm-x-session[1313]: (EE) 19: 
/usr/lib/xorg/Xorg (0x55e9080fc000+0x57c43) [0x55e908153c43]
May 18 13:30:05 squan /usr/lib/gdm3/gdm-x-session[1313]: (EE) 20: 
/lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xf0) [0x7f508c82d830]
May 18 13:30:05 squan /usr/lib/gdm3/gdm-x-session[1313]: (EE) 21: 
/usr/lib/xorg/Xorg (_start+0x29) [0x55e90813df59]
May 18 13:30:05 squan /usr/lib/gdm3/gdm-x-session[1313]: (EE)
May 18 13:30:05 squan /usr/lib/gdm3/gdm-x-session[1313]: (EE) [mi] These 
backtraces from mieqEnqueue may point to a culprit higher up the stack.
May 18 13:30:05 squan /usr/lib/gdm3/gdm-x-session[1313]: (EE) [mi] mieq is 
*NOT* the cause.  It is a victim.
M

[Kernel-packages] [Bug 1568865] Re: [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe B FIFO underrun

[jhouse]

Backports of these fixes to 4.4 kernels are badly needed.  This bug
affects (prevents use of HDMI port) anyone who has one of several newer
generations Dell laptop models who is trying to run most any linux
distribution using 4.4 kernels (such as Ubuntu 16.04).  These XPS models
are selling fast, so the number of people this affects is increasing
quickly.

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1568865

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

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Running Gnome-Shell on ubuntu 16.04 on my Dell XPS 15 9550 laptop
  using Intel graphics (Nvidia card turned off), I get this error in
  syslog when plugging in an external monitor (HDMI).

  Apr 11 14:28:38 miaco kernel: [ 2616.604641]
  [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe
  B FIFO underrun


  Meanwhile both screens flash and show corruption. Most of the time
  this has caused a hang that needs a hard power off to get out of, but
  occasionally removing the external monitor is enough to get going
  again and so I've been able to find this message in the logs.

  Note that when using Nvidia (proprietary) drivers and Unity DE I do
  not have this problem; so it seems to be related to the intel drivers,
  or possibly Gnome Shell's use of them.

  Happy to help if I can (would like to be able to use external
  monitors!)

  Rich

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-18-generic 4.4.0-18.34
  ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6
  Uname: Linux 4.4.0-18-generic x86_64
  ApportVersion: 2.20.1-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  rich   1943 F pulseaudio
  Date: Mon Apr 11 14:31:26 2016
  InstallationDate: Installed on 2016-03-21 (21 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160307)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 04f3:21d5 Elan Microelectronics Corp. 
   Bus 001 Device 002: ID 0a5c:6410 Broadcom Corp. 
   Bus 001 Device 004: ID 0c45:6713 Microdia 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 15 9550
  ProcEnviron:
   LANGUAGE=en_GB:en
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-18-generic.efi.signed 
root=UUID=3f8391d5-e9cc-4768-8efb-8f04d340567c ro quiet splash vt.handoff=7
  PulseList:
   Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not 
accessible: Permission denied
   No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-18-generic N/A
   linux-backports-modules-4.4.0-18-generic  N/A
   linux-firmware1.157
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/25/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 01.01.19
  dmi.board.name: 0N7TVV
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr01.01.19:bd01/25/2016:svnDellInc.:pnXPS159550:pvr:rvnDellInc.:rn0N7TVV:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 15 9550
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1568865] Re: [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe B FIFO underrun

[Matthew Willson]

I've now tried this with 4.6.0-rc7.

* I no longer see the "CPU pipe B FIFO underrun" errors in syslog,
although I do still see the stack traces like in #12 on hotplugging
displays.

* The "laptop screen goes black when mouse moves into it" issue is gone!

It looks like there are quite a few i915-related fixes in these new 4.6
kernels, any chance of backporting them?

-- 
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/1568865

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

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Running Gnome-Shell on ubuntu 16.04 on my Dell XPS 15 9550 laptop
  using Intel graphics (Nvidia card turned off), I get this error in
  syslog when plugging in an external monitor (HDMI).

  Apr 11 14:28:38 miaco kernel: [ 2616.604641]
  [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe
  B FIFO underrun


  Meanwhile both screens flash and show corruption. Most of the time
  this has caused a hang that needs a hard power off to get out of, but
  occasionally removing the external monitor is enough to get going
  again and so I've been able to find this message in the logs.

  Note that when using Nvidia (proprietary) drivers and Unity DE I do
  not have this problem; so it seems to be related to the intel drivers,
  or possibly Gnome Shell's use of them.

  Happy to help if I can (would like to be able to use external
  monitors!)

  Rich

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-18-generic 4.4.0-18.34
  ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6
  Uname: Linux 4.4.0-18-generic x86_64
  ApportVersion: 2.20.1-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  rich   1943 F pulseaudio
  Date: Mon Apr 11 14:31:26 2016
  InstallationDate: Installed on 2016-03-21 (21 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160307)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 04f3:21d5 Elan Microelectronics Corp. 
   Bus 001 Device 002: ID 0a5c:6410 Broadcom Corp. 
   Bus 001 Device 004: ID 0c45:6713 Microdia 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 15 9550
  ProcEnviron:
   LANGUAGE=en_GB:en
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-18-generic.efi.signed 
root=UUID=3f8391d5-e9cc-4768-8efb-8f04d340567c ro quiet splash vt.handoff=7
  PulseList:
   Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not 
accessible: Permission denied
   No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-18-generic N/A
   linux-backports-modules-4.4.0-18-generic  N/A
   linux-firmware1.157
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/25/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 01.01.19
  dmi.board.name: 0N7TVV
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr01.01.19:bd01/25/2016:svnDellInc.:pnXPS159550:pvr:rvnDellInc.:rn0N7TVV:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 15 9550
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1568865/+subscriptions

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[Kernel-packages] [Bug 1568865] Re: [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe B FIFO underrun

[Matthew Willson]

@shinyblue (and others) would you be able to try the 4.6.0-rc6 kernel?
It looks like some new commits relating to i915 have been made since
4.6.0-rc4:

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/log/?id=refs/tags/v4.6-rc6&ofs=300

drm/i915: Use fw_domains_put_with_fifo() on HSW 
drm/i915: Force ringbuffers to not be at offset 0   -2/+5
drm/i915: Adjust size of PIPE_CONTROL used for gen8 render seqno write
drm/i915/skl: Fix spurious gpu hang with gt3/gt4 revs
drm/i915/skl: Fix rc6 based gpu/system hang
drm/i915/userptr: Hold mmref whilst calling get-user-pages
drm/i915: Fixup the free space logic in ring_prepare
drm/i915/skl+: Use plane size for relative data rate calculation

I'm assuming if you install a recent kernel you don't get the i915_bpo
module (Ubuntu's backported version of i915, not sure from when/where) ?

-- 
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/1568865

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

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Running Gnome-Shell on ubuntu 16.04 on my Dell XPS 15 9550 laptop
  using Intel graphics (Nvidia card turned off), I get this error in
  syslog when plugging in an external monitor (HDMI).

  Apr 11 14:28:38 miaco kernel: [ 2616.604641]
  [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe
  B FIFO underrun


  Meanwhile both screens flash and show corruption. Most of the time
  this has caused a hang that needs a hard power off to get out of, but
  occasionally removing the external monitor is enough to get going
  again and so I've been able to find this message in the logs.

  Note that when using Nvidia (proprietary) drivers and Unity DE I do
  not have this problem; so it seems to be related to the intel drivers,
  or possibly Gnome Shell's use of them.

  Happy to help if I can (would like to be able to use external
  monitors!)

  Rich

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-18-generic 4.4.0-18.34
  ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6
  Uname: Linux 4.4.0-18-generic x86_64
  ApportVersion: 2.20.1-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  rich   1943 F pulseaudio
  Date: Mon Apr 11 14:31:26 2016
  InstallationDate: Installed on 2016-03-21 (21 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160307)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 04f3:21d5 Elan Microelectronics Corp. 
   Bus 001 Device 002: ID 0a5c:6410 Broadcom Corp. 
   Bus 001 Device 004: ID 0c45:6713 Microdia 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 15 9550
  ProcEnviron:
   LANGUAGE=en_GB:en
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-18-generic.efi.signed 
root=UUID=3f8391d5-e9cc-4768-8efb-8f04d340567c ro quiet splash vt.handoff=7
  PulseList:
   Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not 
accessible: Permission denied
   No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-18-generic N/A
   linux-backports-modules-4.4.0-18-generic  N/A
   linux-firmware1.157
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/25/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 01.01.19
  dmi.board.name: 0N7TVV
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr01.01.19:bd01/25/2016:svnDellInc.:pnXPS159550:pvr:rvnDellInc.:rn0N7TVV:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 15 9550
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1568865/+subscriptions

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[Kernel-packages] [Bug 1568865] Re: [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe B FIFO underrun

[Simon Ransome]

I see the same FIFO under-run issue in Kubuntu 16.04. The manifestation
appears to be either the laptop display remaining totally blank (but not
disabled - the pointer appears to travel through it) on boot-up, resume
from lid-open or resume from screensaver, or the display going blank
when the mouse pointer enters the laptop screen and resuming when the
pointer exits - but always in the presence of a second display connected
over HDMI. Temporary "fixes" have so far included closing the lid and
opening (often seems to resolve the blank state from screensaver) and
unplugging and re-plugging HDMI, which sometimes sorts the blanking on
mouse pointer problem.

sample errors:

[   90.483130] [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU 
pipe A FIFO underrun
[  139.548826] [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/1568865

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

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Running Gnome-Shell on ubuntu 16.04 on my Dell XPS 15 9550 laptop
  using Intel graphics (Nvidia card turned off), I get this error in
  syslog when plugging in an external monitor (HDMI).

  Apr 11 14:28:38 miaco kernel: [ 2616.604641]
  [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe
  B FIFO underrun


  Meanwhile both screens flash and show corruption. Most of the time
  this has caused a hang that needs a hard power off to get out of, but
  occasionally removing the external monitor is enough to get going
  again and so I've been able to find this message in the logs.

  Note that when using Nvidia (proprietary) drivers and Unity DE I do
  not have this problem; so it seems to be related to the intel drivers,
  or possibly Gnome Shell's use of them.

  Happy to help if I can (would like to be able to use external
  monitors!)

  Rich

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-18-generic 4.4.0-18.34
  ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6
  Uname: Linux 4.4.0-18-generic x86_64
  ApportVersion: 2.20.1-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  rich   1943 F pulseaudio
  Date: Mon Apr 11 14:31:26 2016
  InstallationDate: Installed on 2016-03-21 (21 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160307)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 04f3:21d5 Elan Microelectronics Corp. 
   Bus 001 Device 002: ID 0a5c:6410 Broadcom Corp. 
   Bus 001 Device 004: ID 0c45:6713 Microdia 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 15 9550
  ProcEnviron:
   LANGUAGE=en_GB:en
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-18-generic.efi.signed 
root=UUID=3f8391d5-e9cc-4768-8efb-8f04d340567c ro quiet splash vt.handoff=7
  PulseList:
   Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not 
accessible: Permission denied
   No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-18-generic N/A
   linux-backports-modules-4.4.0-18-generic  N/A
   linux-firmware1.157
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/25/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 01.01.19
  dmi.board.name: 0N7TVV
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr01.01.19:bd01/25/2016:svnDellInc.:pnXPS159550:pvr:rvnDellInc.:rn0N7TVV:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 15 9550
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1568865] Re: [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe B FIFO underrun

[Matthew Willson]

FWIW I still have this issue without Unity and Compiz running, so I
don't think it has anything to do with those. I don't see any relevant
logging from X even after starting it with -logverbose 6.

-- 
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/1568865

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

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Running Gnome-Shell on ubuntu 16.04 on my Dell XPS 15 9550 laptop
  using Intel graphics (Nvidia card turned off), I get this error in
  syslog when plugging in an external monitor (HDMI).

  Apr 11 14:28:38 miaco kernel: [ 2616.604641]
  [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe
  B FIFO underrun


  Meanwhile both screens flash and show corruption. Most of the time
  this has caused a hang that needs a hard power off to get out of, but
  occasionally removing the external monitor is enough to get going
  again and so I've been able to find this message in the logs.

  Note that when using Nvidia (proprietary) drivers and Unity DE I do
  not have this problem; so it seems to be related to the intel drivers,
  or possibly Gnome Shell's use of them.

  Happy to help if I can (would like to be able to use external
  monitors!)

  Rich

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-18-generic 4.4.0-18.34
  ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6
  Uname: Linux 4.4.0-18-generic x86_64
  ApportVersion: 2.20.1-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  rich   1943 F pulseaudio
  Date: Mon Apr 11 14:31:26 2016
  InstallationDate: Installed on 2016-03-21 (21 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160307)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 04f3:21d5 Elan Microelectronics Corp. 
   Bus 001 Device 002: ID 0a5c:6410 Broadcom Corp. 
   Bus 001 Device 004: ID 0c45:6713 Microdia 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 15 9550
  ProcEnviron:
   LANGUAGE=en_GB:en
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-18-generic.efi.signed 
root=UUID=3f8391d5-e9cc-4768-8efb-8f04d340567c ro quiet splash vt.handoff=7
  PulseList:
   Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not 
accessible: Permission denied
   No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-18-generic N/A
   linux-backports-modules-4.4.0-18-generic  N/A
   linux-firmware1.157
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/25/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 01.01.19
  dmi.board.name: 0N7TVV
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr01.01.19:bd01/25/2016:svnDellInc.:pnXPS159550:pvr:rvnDellInc.:rn0N7TVV:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 15 9550
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1568865/+subscriptions

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More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1568865] Re: [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe B FIFO underrun

[Matthew Willson]

This is also with the latest bios update (A07) from Dell.

-- 
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/1568865

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

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Running Gnome-Shell on ubuntu 16.04 on my Dell XPS 15 9550 laptop
  using Intel graphics (Nvidia card turned off), I get this error in
  syslog when plugging in an external monitor (HDMI).

  Apr 11 14:28:38 miaco kernel: [ 2616.604641]
  [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe
  B FIFO underrun


  Meanwhile both screens flash and show corruption. Most of the time
  this has caused a hang that needs a hard power off to get out of, but
  occasionally removing the external monitor is enough to get going
  again and so I've been able to find this message in the logs.

  Note that when using Nvidia (proprietary) drivers and Unity DE I do
  not have this problem; so it seems to be related to the intel drivers,
  or possibly Gnome Shell's use of them.

  Happy to help if I can (would like to be able to use external
  monitors!)

  Rich

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-18-generic 4.4.0-18.34
  ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6
  Uname: Linux 4.4.0-18-generic x86_64
  ApportVersion: 2.20.1-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  rich   1943 F pulseaudio
  Date: Mon Apr 11 14:31:26 2016
  InstallationDate: Installed on 2016-03-21 (21 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160307)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 04f3:21d5 Elan Microelectronics Corp. 
   Bus 001 Device 002: ID 0a5c:6410 Broadcom Corp. 
   Bus 001 Device 004: ID 0c45:6713 Microdia 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 15 9550
  ProcEnviron:
   LANGUAGE=en_GB:en
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-18-generic.efi.signed 
root=UUID=3f8391d5-e9cc-4768-8efb-8f04d340567c ro quiet splash vt.handoff=7
  PulseList:
   Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not 
accessible: Permission denied
   No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-18-generic N/A
   linux-backports-modules-4.4.0-18-generic  N/A
   linux-firmware1.157
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/25/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 01.01.19
  dmi.board.name: 0N7TVV
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr01.01.19:bd01/25/2016:svnDellInc.:pnXPS159550:pvr:rvnDellInc.:rn0N7TVV:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 15 9550
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1568865] Re: [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe B FIFO underrun

[Matthew Willson]

Assuming this is what's responsible for the issue, to me this is quite a
major bug as it prevents use of external display together with the
laptop screen.

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https://bugs.launchpad.net/bugs/1568865

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

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Running Gnome-Shell on ubuntu 16.04 on my Dell XPS 15 9550 laptop
  using Intel graphics (Nvidia card turned off), I get this error in
  syslog when plugging in an external monitor (HDMI).

  Apr 11 14:28:38 miaco kernel: [ 2616.604641]
  [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe
  B FIFO underrun


  Meanwhile both screens flash and show corruption. Most of the time
  this has caused a hang that needs a hard power off to get out of, but
  occasionally removing the external monitor is enough to get going
  again and so I've been able to find this message in the logs.

  Note that when using Nvidia (proprietary) drivers and Unity DE I do
  not have this problem; so it seems to be related to the intel drivers,
  or possibly Gnome Shell's use of them.

  Happy to help if I can (would like to be able to use external
  monitors!)

  Rich

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-18-generic 4.4.0-18.34
  ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6
  Uname: Linux 4.4.0-18-generic x86_64
  ApportVersion: 2.20.1-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  rich   1943 F pulseaudio
  Date: Mon Apr 11 14:31:26 2016
  InstallationDate: Installed on 2016-03-21 (21 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160307)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 04f3:21d5 Elan Microelectronics Corp. 
   Bus 001 Device 002: ID 0a5c:6410 Broadcom Corp. 
   Bus 001 Device 004: ID 0c45:6713 Microdia 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 15 9550
  ProcEnviron:
   LANGUAGE=en_GB:en
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-18-generic.efi.signed 
root=UUID=3f8391d5-e9cc-4768-8efb-8f04d340567c ro quiet splash vt.handoff=7
  PulseList:
   Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not 
accessible: Permission denied
   No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-18-generic N/A
   linux-backports-modules-4.4.0-18-generic  N/A
   linux-firmware1.157
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/25/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 01.01.19
  dmi.board.name: 0N7TVV
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr01.01.19:bd01/25/2016:svnDellInc.:pnXPS159550:pvr:rvnDellInc.:rn0N7TVV:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 15 9550
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1568865/+subscriptions

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[Kernel-packages] [Bug 1568865] Re: [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe B FIFO underrun

[Matthew Willson]

I am also seeing this, with a fresh install of 16.04 on a new Dell
Precision 5510 (also Skylake, similar to the XPS 15 9550).

When I plug in an external monitor I see this error in syslog:

May  4 12:13:01 cherry kernel: [ 1362.648527] [ cut here 
]
May  4 12:13:01 cherry kernel: [ 1362.648542] WARNING: CPU: 7 PID: 1182 at 
/build/linux-Ay7j_C/linux-4.4.0/ubuntu/i915/intel_pm.c:3572 
skl_update_other_pipe_wm+0x16c/0x180 [i915_bpo]()
May  4 12:13:01 cherry kernel: [ 1362.648543] WARN_ON(!wm_changed)
May  4 12:13:01 cherry kernel: [ 1362.648544] Modules linked in: rfcomm bnep 
smsc75xx usbnet mii bbswitch(OE) pci_stub vboxpci(OE) vboxnetadp(OE) 
vboxnetflt(OE) vboxdrv(OE) arc4 nls_iso8859_1 snd_hda_codec_hdmi iwlmvm 
dell_rbtn dell_led dell_laptop intel_rapl x86_pkg_temp_thermal dell_wmi 
intel_powerclamp coretemp snd_hda_codec_realtek dcdbas i2c_designware_platform 
i2c_designware_core mxm_wmi sparse_keymap snd_hda_codec_generic mac80211 
kvm_intel dell_smm_hwmon kvm iwlwifi uvcvideo cfg80211 irqbypass 
videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 snd_hda_intel rtsx_pci_ms 
memstick snd_hda_codec serio_raw videobuf2_core snd_hda_core v4l2_common 
snd_hwdep videodev snd_pcm hid_multitouch input_leds media joydev snd_seq_midi 
snd_seq_midi_event btusb snd_rawmidi btrtl snd_seq snd_seq_device snd_timer snd 
mei_me mei soundcore idma64 shpchp virt_dma processor_thermal_device 
intel_soc_dts_iosf intel_lpss_pci hci_uart btbcm btqca btintel bluetooth 
int3403_thermal dell_smo8800 intel_lpss_a
 cpi intel_lpss wmi int3400_thermal acpi_als mac_hid int3402_thermal 
acpi_thermal_rel int340x_thermal_zone kfifo_buf acpi_pad industrialio 
parport_pc ppdev lp parport autofs4 drbg ansi_cprng algif_skcipher af_alg 
dm_crypt hid_generic usbhid rtsx_pci_sdmmc crct10dif_pclmul crc32_pclmul 
i915_bpo aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper intel_ips 
cryptd i2c_algo_bit drm_kms_helper syscopyarea sysfillrect psmouse sysimgblt 
fb_sys_fops drm ahci rtsx_pci libahci i2c_hid hid pinctrl_sunrisepoint video 
pinctrl_intel fjes [last unloaded: nvidia]
May  4 12:13:01 cherry kernel: [ 1362.648588] CPU: 7 PID: 1182 Comm: Xorg 
Tainted: PW  OE   4.4.0-21-generic #37-Ubuntu
May  4 12:13:01 cherry kernel: [ 1362.648589] Hardware name: Dell Inc. 
Precision 5510/0N8J4R, BIOS 01.02.00 04/07/2016
May  4 12:13:01 cherry kernel: [ 1362.648590]  0286 
df0da080 8804a71e79a8 813e93c3
May  4 12:13:01 cherry kernel: [ 1362.648591]  8804a71e79f0 
c03efc70 8804a71e79e0 81080f62
May  4 12:13:01 cherry kernel: [ 1362.648593]  8804aa572000 
8804a3089d9c 8804aa574000 8804a3a64b78
May  4 12:13:01 cherry kernel: [ 1362.648594] Call Trace:
May  4 12:13:01 cherry kernel: [ 1362.648597]  [] 
dump_stack+0x63/0x90
May  4 12:13:01 cherry kernel: [ 1362.648599]  [] 
warn_slowpath_common+0x82/0xc0
May  4 12:13:01 cherry kernel: [ 1362.648601]  [] 
warn_slowpath_fmt+0x5c/0x80
May  4 12:13:01 cherry kernel: [ 1362.648610]  [] 
skl_update_other_pipe_wm+0x16c/0x180 [i915_bpo]
May  4 12:13:01 cherry kernel: [ 1362.648619]  [] 
skl_update_wm+0x186/0x5f0 [i915_bpo]
May  4 12:13:01 cherry kernel: [ 1362.648629]  [] ? 
intel_display_power_put+0xd0/0x130 [i915_bpo]
May  4 12:13:01 cherry kernel: [ 1362.648638]  [] 
intel_update_watermarks+0x1e/0x30 [i915_bpo]
May  4 12:13:01 cherry kernel: [ 1362.648652]  [] 
intel_atomic_commit+0x466/0xdb0 [i915_bpo]
May  4 12:13:01 cherry kernel: [ 1362.648663]  [] ? 
drm_atomic_check_only+0x18e/0x590 [drm]
May  4 12:13:01 cherry kernel: [ 1362.648672]  [] 
drm_atomic_commit+0x37/0x60 [drm]
May  4 12:13:01 cherry kernel: [ 1362.648677]  [] 
drm_atomic_helper_set_config+0x76/0xb0 [drm_kms_helper]
May  4 12:13:01 cherry kernel: [ 1362.648685]  [] ? 
drm_modeset_lock_all_ctx+0x9a/0xb0 [drm]
May  4 12:13:01 cherry kernel: [ 1362.648693]  [] 
drm_mode_set_config_internal+0x62/0x100 [drm]
May  4 12:13:01 cherry kernel: [ 1362.648701]  [] 
drm_mode_setcrtc+0x3d2/0x4f0 [drm]
May  4 12:13:01 cherry kernel: [ 1362.648706]  [] 
drm_ioctl+0x152/0x540 [drm]
May  4 12:13:01 cherry kernel: [ 1362.648714]  [] ? 
drm_mode_setplane+0x1b0/0x1b0 [drm]
May  4 12:13:01 cherry kernel: [ 1362.648716]  [] 
do_vfs_ioctl+0x29f/0x490
May  4 12:13:01 cherry kernel: [ 1362.648718]  [] ? 
__sys_recvmsg+0x80/0x90
May  4 12:13:01 cherry kernel: [ 1362.648719]  [] 
SyS_ioctl+0x79/0x90
May  4 12:13:01 cherry kernel: [ 1362.648721]  [] 
entry_SYSCALL_64_fastpath+0x16/0x71
May  4 12:13:01 cherry kernel: [ 1362.648722] ---[ end trace 5c4996187af7546b 
]---
May  4 12:13:02 cherry kernel: [ 1363.740247] 
[drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe B FIFO 
underrun


After this, I have an issue where moving the mouse into the laptop's screen 
causes the screen to go black (after some brief glitches). In fact, it's enough 
to move the mouse pointer close to the configured boundary between the external 
screen and the laptop scr

[Kernel-packages] [Bug 1568865] Re: [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe B FIFO underrun

[Yuan]

Hello,

DELL XPS 13 - 9350
Manufacture Date 02/02/2016
Ubuntu 16.04 LTS
No external monitors

 Also see the problem ;

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

Humble Query = Is this because i915 driver is not mature enough to
handle Skylake ?  I already know that DELL does not support  Ubuntu
16.04 on XPS13-9350.

Thanks

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1568865

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

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Running Gnome-Shell on ubuntu 16.04 on my Dell XPS 15 9550 laptop
  using Intel graphics (Nvidia card turned off), I get this error in
  syslog when plugging in an external monitor (HDMI).

  Apr 11 14:28:38 miaco kernel: [ 2616.604641]
  [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe
  B FIFO underrun


  Meanwhile both screens flash and show corruption. Most of the time
  this has caused a hang that needs a hard power off to get out of, but
  occasionally removing the external monitor is enough to get going
  again and so I've been able to find this message in the logs.

  Note that when using Nvidia (proprietary) drivers and Unity DE I do
  not have this problem; so it seems to be related to the intel drivers,
  or possibly Gnome Shell's use of them.

  Happy to help if I can (would like to be able to use external
  monitors!)

  Rich

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-18-generic 4.4.0-18.34
  ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6
  Uname: Linux 4.4.0-18-generic x86_64
  ApportVersion: 2.20.1-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  rich   1943 F pulseaudio
  Date: Mon Apr 11 14:31:26 2016
  InstallationDate: Installed on 2016-03-21 (21 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160307)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 04f3:21d5 Elan Microelectronics Corp. 
   Bus 001 Device 002: ID 0a5c:6410 Broadcom Corp. 
   Bus 001 Device 004: ID 0c45:6713 Microdia 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 15 9550
  ProcEnviron:
   LANGUAGE=en_GB:en
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-18-generic.efi.signed 
root=UUID=3f8391d5-e9cc-4768-8efb-8f04d340567c ro quiet splash vt.handoff=7
  PulseList:
   Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not 
accessible: Permission denied
   No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-18-generic N/A
   linux-backports-modules-4.4.0-18-generic  N/A
   linux-firmware1.157
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/25/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 01.01.19
  dmi.board.name: 0N7TVV
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr01.01.19:bd01/25/2016:svnDellInc.:pnXPS159550:pvr:rvnDellInc.:rn0N7TVV:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 15 9550
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1568865] Re: [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe B FIFO underrun

[shinyblue]

Try using lightdm to launch it? That's the combination I'm using.

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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/1568865

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

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Running Gnome-Shell on ubuntu 16.04 on my Dell XPS 15 9550 laptop
  using Intel graphics (Nvidia card turned off), I get this error in
  syslog when plugging in an external monitor (HDMI).

  Apr 11 14:28:38 miaco kernel: [ 2616.604641]
  [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe
  B FIFO underrun


  Meanwhile both screens flash and show corruption. Most of the time
  this has caused a hang that needs a hard power off to get out of, but
  occasionally removing the external monitor is enough to get going
  again and so I've been able to find this message in the logs.

  Note that when using Nvidia (proprietary) drivers and Unity DE I do
  not have this problem; so it seems to be related to the intel drivers,
  or possibly Gnome Shell's use of them.

  Happy to help if I can (would like to be able to use external
  monitors!)

  Rich

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-18-generic 4.4.0-18.34
  ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6
  Uname: Linux 4.4.0-18-generic x86_64
  ApportVersion: 2.20.1-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  rich   1943 F pulseaudio
  Date: Mon Apr 11 14:31:26 2016
  InstallationDate: Installed on 2016-03-21 (21 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160307)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 04f3:21d5 Elan Microelectronics Corp. 
   Bus 001 Device 002: ID 0a5c:6410 Broadcom Corp. 
   Bus 001 Device 004: ID 0c45:6713 Microdia 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 15 9550
  ProcEnviron:
   LANGUAGE=en_GB:en
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-18-generic.efi.signed 
root=UUID=3f8391d5-e9cc-4768-8efb-8f04d340567c ro quiet splash vt.handoff=7
  PulseList:
   Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not 
accessible: Permission denied
   No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-18-generic N/A
   linux-backports-modules-4.4.0-18-generic  N/A
   linux-firmware1.157
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/25/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 01.01.19
  dmi.board.name: 0N7TVV
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr01.01.19:bd01/25/2016:svnDellInc.:pnXPS159550:pvr:rvnDellInc.:rn0N7TVV:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 15 9550
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1568865/+subscriptions

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[Kernel-packages] [Bug 1568865] Re: [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe B FIFO underrun

[jhouse]

With Gnome Classic, when I plug in a monitor I get two blank screens and
a hang  (rather than flickering screens then a hang) - only tried this
once.

Also for clarification I'm using the official 16.04 release of ubuntu
gnome.   4.4.0-21 kernel.

I have not tried with Unity (on 16.04) but it hung with unity on 15.10
(and older kernel) when I tried a few weeks ago.

-- 
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/1568865

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

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Running Gnome-Shell on ubuntu 16.04 on my Dell XPS 15 9550 laptop
  using Intel graphics (Nvidia card turned off), I get this error in
  syslog when plugging in an external monitor (HDMI).

  Apr 11 14:28:38 miaco kernel: [ 2616.604641]
  [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe
  B FIFO underrun


  Meanwhile both screens flash and show corruption. Most of the time
  this has caused a hang that needs a hard power off to get out of, but
  occasionally removing the external monitor is enough to get going
  again and so I've been able to find this message in the logs.

  Note that when using Nvidia (proprietary) drivers and Unity DE I do
  not have this problem; so it seems to be related to the intel drivers,
  or possibly Gnome Shell's use of them.

  Happy to help if I can (would like to be able to use external
  monitors!)

  Rich

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-18-generic 4.4.0-18.34
  ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6
  Uname: Linux 4.4.0-18-generic x86_64
  ApportVersion: 2.20.1-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  rich   1943 F pulseaudio
  Date: Mon Apr 11 14:31:26 2016
  InstallationDate: Installed on 2016-03-21 (21 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160307)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 04f3:21d5 Elan Microelectronics Corp. 
   Bus 001 Device 002: ID 0a5c:6410 Broadcom Corp. 
   Bus 001 Device 004: ID 0c45:6713 Microdia 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 15 9550
  ProcEnviron:
   LANGUAGE=en_GB:en
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-18-generic.efi.signed 
root=UUID=3f8391d5-e9cc-4768-8efb-8f04d340567c ro quiet splash vt.handoff=7
  PulseList:
   Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not 
accessible: Permission denied
   No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-18-generic N/A
   linux-backports-modules-4.4.0-18-generic  N/A
   linux-firmware1.157
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/25/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 01.01.19
  dmi.board.name: 0N7TVV
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr01.01.19:bd01/25/2016:svnDellInc.:pnXPS159550:pvr:rvnDellInc.:rn0N7TVV:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 15 9550
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1568865] Re: [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe B FIFO underrun

[shinyblue]

Note: I can use Gnome Classic, with a monitor plugged in, on the Intel
drivers without this error.

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1568865

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

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Running Gnome-Shell on ubuntu 16.04 on my Dell XPS 15 9550 laptop
  using Intel graphics (Nvidia card turned off), I get this error in
  syslog when plugging in an external monitor (HDMI).

  Apr 11 14:28:38 miaco kernel: [ 2616.604641]
  [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe
  B FIFO underrun


  Meanwhile both screens flash and show corruption. Most of the time
  this has caused a hang that needs a hard power off to get out of, but
  occasionally removing the external monitor is enough to get going
  again and so I've been able to find this message in the logs.

  Note that when using Nvidia (proprietary) drivers and Unity DE I do
  not have this problem; so it seems to be related to the intel drivers,
  or possibly Gnome Shell's use of them.

  Happy to help if I can (would like to be able to use external
  monitors!)

  Rich

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-18-generic 4.4.0-18.34
  ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6
  Uname: Linux 4.4.0-18-generic x86_64
  ApportVersion: 2.20.1-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  rich   1943 F pulseaudio
  Date: Mon Apr 11 14:31:26 2016
  InstallationDate: Installed on 2016-03-21 (21 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160307)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 04f3:21d5 Elan Microelectronics Corp. 
   Bus 001 Device 002: ID 0a5c:6410 Broadcom Corp. 
   Bus 001 Device 004: ID 0c45:6713 Microdia 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 15 9550
  ProcEnviron:
   LANGUAGE=en_GB:en
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-18-generic.efi.signed 
root=UUID=3f8391d5-e9cc-4768-8efb-8f04d340567c ro quiet splash vt.handoff=7
  PulseList:
   Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not 
accessible: Permission denied
   No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-18-generic N/A
   linux-backports-modules-4.4.0-18-generic  N/A
   linux-firmware1.157
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/25/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 01.01.19
  dmi.board.name: 0N7TVV
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr01.01.19:bd01/25/2016:svnDellInc.:pnXPS159550:pvr:rvnDellInc.:rn0N7TVV:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 15 9550
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1568865/+subscriptions

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[Kernel-packages] [Bug 1568865] Re: [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe B FIFO underrun

[jhouse]

Just noting that I have the very same problems - on the same laptop
model.

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


(I also got the flickering screen followed by lock-up with Ubuntu 15.10 (and 
older kernel) though I don't know if it was the same error message).

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1568865

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

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Running Gnome-Shell on ubuntu 16.04 on my Dell XPS 15 9550 laptop
  using Intel graphics (Nvidia card turned off), I get this error in
  syslog when plugging in an external monitor (HDMI).

  Apr 11 14:28:38 miaco kernel: [ 2616.604641]
  [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe
  B FIFO underrun


  Meanwhile both screens flash and show corruption. Most of the time
  this has caused a hang that needs a hard power off to get out of, but
  occasionally removing the external monitor is enough to get going
  again and so I've been able to find this message in the logs.

  Note that when using Nvidia (proprietary) drivers and Unity DE I do
  not have this problem; so it seems to be related to the intel drivers,
  or possibly Gnome Shell's use of them.

  Happy to help if I can (would like to be able to use external
  monitors!)

  Rich

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-18-generic 4.4.0-18.34
  ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6
  Uname: Linux 4.4.0-18-generic x86_64
  ApportVersion: 2.20.1-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  rich   1943 F pulseaudio
  Date: Mon Apr 11 14:31:26 2016
  InstallationDate: Installed on 2016-03-21 (21 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160307)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 04f3:21d5 Elan Microelectronics Corp. 
   Bus 001 Device 002: ID 0a5c:6410 Broadcom Corp. 
   Bus 001 Device 004: ID 0c45:6713 Microdia 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 15 9550
  ProcEnviron:
   LANGUAGE=en_GB:en
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-18-generic.efi.signed 
root=UUID=3f8391d5-e9cc-4768-8efb-8f04d340567c ro quiet splash vt.handoff=7
  PulseList:
   Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not 
accessible: Permission denied
   No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-18-generic N/A
   linux-backports-modules-4.4.0-18-generic  N/A
   linux-firmware1.157
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/25/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 01.01.19
  dmi.board.name: 0N7TVV
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr01.01.19:bd01/25/2016:svnDellInc.:pnXPS159550:pvr:rvnDellInc.:rn0N7TVV:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 15 9550
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1568865/+subscriptions

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[Kernel-packages] [Bug 1568865] Re: [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe B FIFO underrun

[shinyblue]

Ah, my bad. I think actually it's that the usb stick uses nouveau not
intel.

-- 
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/1568865

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

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Running Gnome-Shell on ubuntu 16.04 on my Dell XPS 15 9550 laptop
  using Intel graphics (Nvidia card turned off), I get this error in
  syslog when plugging in an external monitor (HDMI).

  Apr 11 14:28:38 miaco kernel: [ 2616.604641]
  [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe
  B FIFO underrun


  Meanwhile both screens flash and show corruption. Most of the time
  this has caused a hang that needs a hard power off to get out of, but
  occasionally removing the external monitor is enough to get going
  again and so I've been able to find this message in the logs.

  Note that when using Nvidia (proprietary) drivers and Unity DE I do
  not have this problem; so it seems to be related to the intel drivers,
  or possibly Gnome Shell's use of them.

  Happy to help if I can (would like to be able to use external
  monitors!)

  Rich

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-18-generic 4.4.0-18.34
  ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6
  Uname: Linux 4.4.0-18-generic x86_64
  ApportVersion: 2.20.1-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  rich   1943 F pulseaudio
  Date: Mon Apr 11 14:31:26 2016
  InstallationDate: Installed on 2016-03-21 (21 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160307)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 04f3:21d5 Elan Microelectronics Corp. 
   Bus 001 Device 002: ID 0a5c:6410 Broadcom Corp. 
   Bus 001 Device 004: ID 0c45:6713 Microdia 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 15 9550
  ProcEnviron:
   LANGUAGE=en_GB:en
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-18-generic.efi.signed 
root=UUID=3f8391d5-e9cc-4768-8efb-8f04d340567c ro quiet splash vt.handoff=7
  PulseList:
   Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not 
accessible: Permission denied
   No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-18-generic N/A
   linux-backports-modules-4.4.0-18-generic  N/A
   linux-firmware1.157
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/25/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 01.01.19
  dmi.board.name: 0N7TVV
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr01.01.19:bd01/25/2016:svnDellInc.:pnXPS159550:pvr:rvnDellInc.:rn0N7TVV:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 15 9550
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1568865/+subscriptions

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[Kernel-packages] [Bug 1568865] Re: [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe B FIFO underrun

[shinyblue]

Sorry, missed the part about marking it "confirmed". Have done that now.

Also, more data for you: I've noted that while booting from a USB stick,
if I boot using UEFI then this occurs, but if I boot in legacy bios mode
then I can plug in a monitor without any issues.

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

-- 
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/1568865

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

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Running Gnome-Shell on ubuntu 16.04 on my Dell XPS 15 9550 laptop
  using Intel graphics (Nvidia card turned off), I get this error in
  syslog when plugging in an external monitor (HDMI).

  Apr 11 14:28:38 miaco kernel: [ 2616.604641]
  [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe
  B FIFO underrun


  Meanwhile both screens flash and show corruption. Most of the time
  this has caused a hang that needs a hard power off to get out of, but
  occasionally removing the external monitor is enough to get going
  again and so I've been able to find this message in the logs.

  Note that when using Nvidia (proprietary) drivers and Unity DE I do
  not have this problem; so it seems to be related to the intel drivers,
  or possibly Gnome Shell's use of them.

  Happy to help if I can (would like to be able to use external
  monitors!)

  Rich

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-18-generic 4.4.0-18.34
  ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6
  Uname: Linux 4.4.0-18-generic x86_64
  ApportVersion: 2.20.1-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  rich   1943 F pulseaudio
  Date: Mon Apr 11 14:31:26 2016
  InstallationDate: Installed on 2016-03-21 (21 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160307)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 04f3:21d5 Elan Microelectronics Corp. 
   Bus 001 Device 002: ID 0a5c:6410 Broadcom Corp. 
   Bus 001 Device 004: ID 0c45:6713 Microdia 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 15 9550
  ProcEnviron:
   LANGUAGE=en_GB:en
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-18-generic.efi.signed 
root=UUID=3f8391d5-e9cc-4768-8efb-8f04d340567c ro quiet splash vt.handoff=7
  PulseList:
   Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not 
accessible: Permission denied
   No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-18-generic N/A
   linux-backports-modules-4.4.0-18-generic  N/A
   linux-firmware1.157
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/25/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 01.01.19
  dmi.board.name: 0N7TVV
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr01.01.19:bd01/25/2016:svnDellInc.:pnXPS159550:pvr:rvnDellInc.:rn0N7TVV:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 15 9550
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1568865/+subscriptions

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[Kernel-packages] [Bug 1568865] Re: [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe B FIFO underrun

[shinyblue]

Thanks.

So I've never run anything before Ubuntu 16.04 on this laptop, so no,
it's not an upgrade that's broken it.

I installed linux-image-4.6.0-040600rc4-generic, ran Gnome-Shell and
plugged in the external monitor, while watching syslog.

Saw the same error about fifo underrun before the whole system locked up
again, requiring a hard reset.

-- 
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/1568865

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

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Running Gnome-Shell on ubuntu 16.04 on my Dell XPS 15 9550 laptop
  using Intel graphics (Nvidia card turned off), I get this error in
  syslog when plugging in an external monitor (HDMI).

  Apr 11 14:28:38 miaco kernel: [ 2616.604641]
  [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe
  B FIFO underrun


  Meanwhile both screens flash and show corruption. Most of the time
  this has caused a hang that needs a hard power off to get out of, but
  occasionally removing the external monitor is enough to get going
  again and so I've been able to find this message in the logs.

  Note that when using Nvidia (proprietary) drivers and Unity DE I do
  not have this problem; so it seems to be related to the intel drivers,
  or possibly Gnome Shell's use of them.

  Happy to help if I can (would like to be able to use external
  monitors!)

  Rich

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-18-generic 4.4.0-18.34
  ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6
  Uname: Linux 4.4.0-18-generic x86_64
  ApportVersion: 2.20.1-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  rich   1943 F pulseaudio
  Date: Mon Apr 11 14:31:26 2016
  InstallationDate: Installed on 2016-03-21 (21 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160307)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 04f3:21d5 Elan Microelectronics Corp. 
   Bus 001 Device 002: ID 0a5c:6410 Broadcom Corp. 
   Bus 001 Device 004: ID 0c45:6713 Microdia 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 15 9550
  ProcEnviron:
   LANGUAGE=en_GB:en
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-18-generic.efi.signed 
root=UUID=3f8391d5-e9cc-4768-8efb-8f04d340567c ro quiet splash vt.handoff=7
  PulseList:
   Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not 
accessible: Permission denied
   No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-18-generic N/A
   linux-backports-modules-4.4.0-18-generic  N/A
   linux-firmware1.157
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/25/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 01.01.19
  dmi.board.name: 0N7TVV
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr01.01.19:bd01/25/2016:svnDellInc.:pnXPS159550:pvr:rvnDellInc.:rn0N7TVV:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 15 9550
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1568865/+subscriptions

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[Kernel-packages] [Bug 1568865] Re: [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe B FIFO underrun

[Joseph Salisbury]

Did this issue start happening after an update/upgrade?  Was there a
prior kernel version where you were not having this particular problem?

Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v4.6 kernel[0].

If this bug is fixed in the mainline kernel, please add the following
tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag:
'kernel-bug-exists-upstream'.

Once testing of the upstream kernel is complete, please mark this bug as
"Confirmed".


Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.6-rc4-wily/

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

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

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https://bugs.launchpad.net/bugs/1568865

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

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Running Gnome-Shell on ubuntu 16.04 on my Dell XPS 15 9550 laptop
  using Intel graphics (Nvidia card turned off), I get this error in
  syslog when plugging in an external monitor (HDMI).

  Apr 11 14:28:38 miaco kernel: [ 2616.604641]
  [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe
  B FIFO underrun


  Meanwhile both screens flash and show corruption. Most of the time
  this has caused a hang that needs a hard power off to get out of, but
  occasionally removing the external monitor is enough to get going
  again and so I've been able to find this message in the logs.

  Note that when using Nvidia (proprietary) drivers and Unity DE I do
  not have this problem; so it seems to be related to the intel drivers,
  or possibly Gnome Shell's use of them.

  Happy to help if I can (would like to be able to use external
  monitors!)

  Rich

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-18-generic 4.4.0-18.34
  ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6
  Uname: Linux 4.4.0-18-generic x86_64
  ApportVersion: 2.20.1-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  rich   1943 F pulseaudio
  Date: Mon Apr 11 14:31:26 2016
  InstallationDate: Installed on 2016-03-21 (21 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160307)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 04f3:21d5 Elan Microelectronics Corp. 
   Bus 001 Device 002: ID 0a5c:6410 Broadcom Corp. 
   Bus 001 Device 004: ID 0c45:6713 Microdia 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 15 9550
  ProcEnviron:
   LANGUAGE=en_GB:en
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-18-generic.efi.signed 
root=UUID=3f8391d5-e9cc-4768-8efb-8f04d340567c ro quiet splash vt.handoff=7
  PulseList:
   Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not 
accessible: Permission denied
   No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-18-generic N/A
   linux-backports-modules-4.4.0-18-generic  N/A
   linux-firmware1.157
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/25/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 01.01.19
  dmi.board.name: 0N7TVV
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr01.01.19:bd01/25/2016:svnDellInc.:pnXPS159550:pvr:rvnDellInc.:rn0N7TVV:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 15 9550
  dmi.sys.vendor: Dell Inc.

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