kernel-packages team mailing list archive

["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

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

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

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

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

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

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

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

Thank you for your understanding.

** Tags removed: bios-outdated-1.40
** Tags added: latest-bios-1.40

** Tags added: regression-update

** Package changed: xorg (Ubuntu) => linux (Ubuntu)

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

** Changed in: linux (Ubuntu)
       Status: New => 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/1550779

Title:
  [i915]] *ERROR* CPU pipe A FIFO underrun - Xorg glitches

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Upgraded linux-image-extra-4.2.0-30-generic I see graphic glitches,
  looks like the graphic buffer gets screwed up

  - funny repetition's patterns  (back in time glitches)
  - black screen (<1sec)
  - graphic errors  

  I can influence the severity of the issue with switching windows and
  using certain programs, e.g. Google Maps in chrome causes this issue
  reproducibly

  dmesg  | grep i915
  [    2.726864] [drm] Initialized i915 1.6.0 20150522 for 0000:00:02.0 on minor 0
  [    2.792005] [drm] GMBUS [i915 gmbus dpb] timed out, falling back to bit banging on pin 5
  [    3.471092] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
  [    3.471093] i915 0000:00:02.0: registered panic notifier
  [    9.573129] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
  [    9.574847] [drm:intel_set_pch_fifo_underrun_reporting [i915]] *ERROR* uncleared pch fifo underrun on pch transcoder A
  [    9.574895] [drm:intel_pch_fifo_underrun_irq_handler [i915]] *ERROR* PCH transcoder A FIFO underrun

  linux-image-extra-4.2.0-27-generic works find

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: xorg 1:7.7+7ubuntu4
  ProcVersionSignature: Ubuntu 4.2.0-30.36-generic 4.2.8-ckt3
  Uname: Linux 4.2.0-30-generic x86_64
  .tmp.unity.support.test.0:
   
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  BootLog:
   
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: None
  CurrentDesktop: GNOME
  Date: Sat Feb 27 20:26:07 2016
  DistUpgraded: Fresh install
  DistroCodename: wily
  DistroVariant: ubuntu
  DkmsStatus:
   virtualbox, 5.0.14, 4.2.0-27-generic, x86_64: installed
   virtualbox, 5.0.14, 4.2.0-30-generic, x86_64: installed
  EcryptfsInUse: Yes
  ExtraDebuggingInterest: Yes, including running git bisection searches
  GraphicsCard:
   Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0126] (rev 09) (prog-if 00 [VGA controller])
     Subsystem: Lenovo Device [17aa:21da]
  InstallationDate: Installed on 2016-02-11 (15 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  MachineType: LENOVO 42912XG
  ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.2.0-30-generic root=UUID=cb34d7bb-9316-49b3-aa94-4e2a3512168f ro rootflags=subvol=@ noprompt quiet
  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: 07/18/2013
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 8DET69WW (1.39 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 42912XG
  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:bvr8DET69WW(1.39):bd07/18/2013:svnLENOVO:pn42912XG:pvrThinkPadX220:rvnLENOVO:rn42912XG:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 42912XG
  dmi.product.version: ThinkPad X220
  dmi.sys.vendor: LENOVO
  version.compiz: compiz 1:0.9.12.2+15.10.20151202-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.64-1
  version.libgl1-mesa-dri: libgl1-mesa-dri 11.0.2-1ubuntu4
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 11.0.2-1ubuntu4
  version.xserver-xorg-core: xserver-xorg-core 2:1.17.2-1ubuntu9.1
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.2-1ubuntu1
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0+git20150819-0ubuntu1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20150808-0ubuntu4
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu3
  xserver.bootTime: Sat Feb 27 20:25:23 2016
  xserver.configfile: default
  xserver.errors:
   
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   product id                               12359 
   vendor                                     SEC
  xserver.version: 2:1.17.2-1ubuntu9.1

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