Public bug reported: I am having issues with my displays blanking out and coming back after 2 seconds, quite often.. sometimes a few times in 10 seconds sometimes once a minute. I only just started using the Intel graphics today, instead of previously using a radeon card.
My setup is 1xDVI + 1x Displayport, with a powered mulitlink adaptor to then connect 2 displays. Only the displayport displays blank out. Similar errors to reported in #1451632 -- I am running xenial up to date as of today, 4.3.0-5-generic. These errors keep appearing, but lots of other stuff is also appearing. A bunch more occurred since I ran ubuntu-bug to generate all the xorg data, so i'll attach an extra dmesg log. [ 4143.345679] [drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR* uncleared fifo underrun on pipe C [ 4143.345688] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe C FIFO underrun Did not happen first at boot, but once it started didn't stop happening. Was playing video at the time but pausing it didn't seem to stop it. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: xorg 1:7.7+12ubuntu1 ProcVersionSignature: Ubuntu 4.3.0-5.16-generic 4.3.3 Uname: Linux 4.3.0-5-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 2.19.3-0ubuntu2 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: compiz CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0' CompositorUnredirectFSW: true CurrentDesktop: Unity Date: Wed Jan 6 16:01:45 2016 DistUpgraded: Fresh install DistroCodename: xenial DistroVariant: ubuntu ExtraDebuggingInterest: Yes, including running git bisection searches GraphicsCard: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller [8086:0412] (rev 06) (prog-if 00 [VGA controller]) Subsystem: Gigabyte Technology Co., Ltd Device [1458:d000] InstallationDate: Installed on 2015-11-13 (53 days ago) InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021) MachineType: Gigabyte Technology Co., Ltd. Z97X-Gaming G1 WIFI-BK ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.3.0-5-generic.efi.signed root=UUID=79f3ac61-fbba-43f5-ae15-30b248bad5fe ro rootflags=subvol=@ quiet splash crashkernel=384M-:128M vt.handoff=7 SourcePackage: xorg UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/21/2015 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: F7 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: Z97X-Gaming G1 WIFI-BK dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: x.x dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: Gigabyte Technology Co., Ltd. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF7:bd04/21/2015:svnGigabyteTechnologyCo.,Ltd.:pnZ97X-GamingG1WIFI-BK:pvrTobefilledbyO.E.M.:rvnGigabyteTechnologyCo.,Ltd.:rnZ97X-GamingG1WIFI-BK:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: Z97X-Gaming G1 WIFI-BK dmi.product.version: To be filled by O.E.M. dmi.sys.vendor: Gigabyte Technology Co., Ltd. version.compiz: compiz 1:0.9.12.2+16.04.20151211-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.65-3 version.libgl1-mesa-dri: libgl1-mesa-dri 11.0.7-1ubuntu1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 11.0.7-1ubuntu1 version.xserver-xorg-core: xserver-xorg-core 2:1.17.3-2ubuntu2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.2-1ubuntu1 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.6.1-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20151217-1~exp1ubuntu1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu3 xserver.bootTime: Wed Jan 6 14:57:22 2016 xserver.configfile: default xserver.errors: systemd-logind: failed to get session: PID 1561 does not belong to any known session xserver.logfile: /var/log/Xorg.0.log xserver.outputs: xserver.version: 2:1.17.3-2ubuntu2 ** Affects: xorg (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug compiz-0.9 ubuntu xenial -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1531422 Title: i915 underrun errors causing screen blanking Status in xorg package in Ubuntu: New Bug description: I am having issues with my displays blanking out and coming back after 2 seconds, quite often.. sometimes a few times in 10 seconds sometimes once a minute. I only just started using the Intel graphics today, instead of previously using a radeon card. My setup is 1xDVI + 1x Displayport, with a powered mulitlink adaptor to then connect 2 displays. Only the displayport displays blank out. Similar errors to reported in #1451632 -- I am running xenial up to date as of today, 4.3.0-5-generic. These errors keep appearing, but lots of other stuff is also appearing. A bunch more occurred since I ran ubuntu-bug to generate all the xorg data, so i'll attach an extra dmesg log. [ 4143.345679] [drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR* uncleared fifo underrun on pipe C [ 4143.345688] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe C FIFO underrun Did not happen first at boot, but once it started didn't stop happening. Was playing video at the time but pausing it didn't seem to stop it. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: xorg 1:7.7+12ubuntu1 ProcVersionSignature: Ubuntu 4.3.0-5.16-generic 4.3.3 Uname: Linux 4.3.0-5-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 2.19.3-0ubuntu2 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: compiz CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0' CompositorUnredirectFSW: true CurrentDesktop: Unity Date: Wed Jan 6 16:01:45 2016 DistUpgraded: Fresh install DistroCodename: xenial DistroVariant: ubuntu ExtraDebuggingInterest: Yes, including running git bisection searches GraphicsCard: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller [8086:0412] (rev 06) (prog-if 00 [VGA controller]) Subsystem: Gigabyte Technology Co., Ltd Device [1458:d000] InstallationDate: Installed on 2015-11-13 (53 days ago) InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021) MachineType: Gigabyte Technology Co., Ltd. Z97X-Gaming G1 WIFI-BK ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.3.0-5-generic.efi.signed root=UUID=79f3ac61-fbba-43f5-ae15-30b248bad5fe ro rootflags=subvol=@ quiet splash crashkernel=384M-:128M vt.handoff=7 SourcePackage: xorg UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/21/2015 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: F7 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: Z97X-Gaming G1 WIFI-BK dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: x.x dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: Gigabyte Technology Co., Ltd. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF7:bd04/21/2015:svnGigabyteTechnologyCo.,Ltd.:pnZ97X-GamingG1WIFI-BK:pvrTobefilledbyO.E.M.:rvnGigabyteTechnologyCo.,Ltd.:rnZ97X-GamingG1WIFI-BK:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: Z97X-Gaming G1 WIFI-BK dmi.product.version: To be filled by O.E.M. dmi.sys.vendor: Gigabyte Technology Co., Ltd. version.compiz: compiz 1:0.9.12.2+16.04.20151211-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.65-3 version.libgl1-mesa-dri: libgl1-mesa-dri 11.0.7-1ubuntu1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 11.0.7-1ubuntu1 version.xserver-xorg-core: xserver-xorg-core 2:1.17.3-2ubuntu2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.2-1ubuntu1 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.6.1-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20151217-1~exp1ubuntu1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu3 xserver.bootTime: Wed Jan 6 14:57:22 2016 xserver.configfile: default xserver.errors: systemd-logind: failed to get session: PID 1561 does not belong to any known session xserver.logfile: /var/log/Xorg.0.log xserver.outputs: xserver.version: 2:1.17.3-2ubuntu2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1531422/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp