[Kernel-packages] [Bug 1568865] Re: [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe B FIFO underrun
*** This bug is a duplicate of bug 1550779 *** https://bugs.launchpad.net/bugs/1550779 ** Tags added: cscc -- 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 -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages 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
*** 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: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1568865/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages 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
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 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 -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages 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
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 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/ubu
[Kernel-packages] [Bug 1568865] Re: [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe B FIFO underrun
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 -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages 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
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: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1568865/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages 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
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. -- 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 -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages 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
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 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 -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages 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
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 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 -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages 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
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
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 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 -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages 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
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 -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages 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
@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 -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages 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
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: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1568865/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages 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
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 -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages 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
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: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1568865/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages 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
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. -- 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 -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages 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
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
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 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 -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages 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
Try using lightdm to launch it? That's the combination I'm using. -- 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 -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages 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
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: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1568865/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages 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
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 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 -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages 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
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 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 -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages 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
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 -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages 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
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 -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages 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
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 -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages 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
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 -- 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 -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp