*** 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 Ubuntu Touch seeded packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1676520 Title: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO underrun Status in xorg package in Ubuntu: New Bug description: The errors has been present on my Thinpad E440 since the first install of Ubuntu 16.04 and would not disappear after several kernel upgrade. It seems that it might be causing random, though quite rare freezes and some screen glitches, too. Driver problem?! ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: xorg 1:7.7+13ubuntu3 ProcVersionSignature: Ubuntu 4.4.0-67.88-generic 4.4.49 Uname: Linux 4.4.0-67-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.5 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: None Date: Mon Mar 27 20:12:20 2017 DistUpgraded: Fresh install DistroCodename: xenial DistroVariant: ubuntu ExtraDebuggingInterest: No GraphicsCard: Intel Corporation 4th Gen Core Processor Integrated Graphics Controller [8086:0416] (rev 06) (prog-if 00 [VGA controller]) Subsystem: Lenovo 4th Gen Core Processor Integrated Graphics Controller [17aa:5028] InstallationDate: Installed on 2016-12-27 (90 days ago) InstallationMedia: Xubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) MachineType: LENOVO 20C5A01AHV ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-67-generic.efi.signed root=UUID=970436cf-8361-4883-96fd-7be3bd990bb3 ro quiet splash vt.handoff=7 SourcePackage: xorg UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 02/04/2016 dmi.bios.vendor: LENOVO dmi.bios.version: J9ET9DWW (2.23 ) dmi.board.asset.tag: Not Available dmi.board.name: 20C5A01AHV dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrJ9ET9DWW(2.23):bd02/04/2016:svnLENOVO:pn20C5A01AHV:pvrThinkPadEdgeE440:rvnLENOVO:rn20C5A01AHV:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 20C5A01AHV dmi.product.version: ThinkPad Edge E440 dmi.sys.vendor: LENOVO version.compiz: compiz N/A version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.70-1~ubuntu16.04.1 version.libgl1-mesa-dri: libgl1-mesa-dri 12.0.6-0ubuntu0.16.04.1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 12.0.6-0ubuntu0.16.04.1 version.xserver-xorg-core: xserver-xorg-core 2:1.18.4-0ubuntu0.2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.1-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.7.0-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20160325-1ubuntu1.2 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-1build2 xserver.bootTime: Mon Mar 27 19:54:33 2017 xserver.configfile: default xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.outputs: product id 1487 vendor BOE xserver.version: 2:1.18.4-0ubuntu0.2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1676520/+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