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[Dave Russell <868684@xxxxxxxxxxxxxxxxxx>]

I agree, for me it's "mostly" when the system has been running for a
while, so I've seen it 2-3 times first thing in the morning when the
system has been left running overnight.

I'm able to ssh into the machine and poke about, look at logs, report
bugs etc, but the display is hung.

Unfortunately I'm travelling at the moment so not much chance of having
a system running for very long.

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https://bugs.launchpad.net/bugs/868684

Title:
  vblank counter failed - screen hung

Status in X.org xf86-video-intel:
  New
Status in “gnome-settings-daemon” package in Ubuntu:
  Confirmed

Bug description:
  Just came back to the screen to find it hung, I could still move the
  mouse but nothing else. Unable to interact with the system
  graphically. Was able to ssh in and gather this information before
  rebooting.

  [ 23113.957] (WW) intel(0): I830DRI2GetMSC:1297 get vblank counter failed: Invalid argument
  [ 23113.957] (WW) intel(0): I830DRI2ScheduleWaitMSC:1364 get vblank counter failed: Invalid argument
  [ 23113.957] (WW) intel(0): I830DRI2GetMSC:1297 get vblank counter failed: Invalid argument
  [ 23113.957] (WW) intel(0): first get vblank counter failed: Invalid argument
  [ 23114.030] (WW) intel(0): I830DRI2GetMSC:1297 get vblank counter failed: Invalid argument
  [ 23114.031] (WW) intel(0): I830DRI2ScheduleWaitMSC:1364 get vblank counter failed: Invalid argument
  [ 23114.031] (WW) intel(0): I830DRI2GetMSC:1297 get vblank counter failed: Invalid argument
  [ 23114.031] (WW) intel(0): first get vblank counter failed: Invalid argument
  [ 23114.065] (WW) intel(0): I830DRI2GetMSC:1297 get vblank counter failed: Invalid argument
  [ 23114.065] (WW) intel(0): I830DRI2ScheduleWaitMSC:1364 get vblank counter failed: Invalid argument
  [ 23114.084] (WW) intel(0): I830DRI2ScheduleWaitMSC:1364 get vblank counter failed: Invalid argument
  [ 23114.105] (WW) intel(0): I830DRI2ScheduleWaitMSC:1364 get vblank counter failed: Invalid argument
  [ 23212.685] (WW) intel(0): first get vblank counter failed: Invalid argument
  [ 23379.328] (WW) intel(0): first get vblank counter failed: Invalid argument
  [ 23379.409] (WW) intel(0): first get vblank counter failed: Invalid argument
  [ 23442.436] (WW) intel(0): first get vblank counter failed: Invalid argument
  [ 24649.942] (WW) intel(0): first get vblank counter failed: Invalid argument
  [ 24650.051] (WW) intel(0): first get vblank counter failed: Invalid argument
  [ 24730.542] (WW) intel(0): first get vblank counter failed: Invalid argument

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: xorg 1:7.6+7ubuntu7
  ProcVersionSignature: Ubuntu 3.0.0-12.19-generic 3.0.4
  Uname: Linux 3.0.0-12-generic x86_64
  ApportVersion: 1.23-0ubuntu2
  Architecture: amd64
  CompizPlugins: [core,bailer,detection,composite,opengl,decor,mousepoll,vpswitch,regex,animation,snap,expo,move,compiztoolbox,place,grid,imgpng,gnomecompat,wall,ezoom,workarounds,resize,fade,unitymtgrabhandles,scale,session,unityshell]
  Date: Wed Oct  5 21:30:51 2011
  DistUpgraded: Log time: 2011-09-22 20:36:49.680898
  DistroCodename: oneiric
  DistroVariant: ubuntu
  EcryptfsInUse: Yes
  ExtraDebuggingInterest: Yes, whatever it takes to get this fixed in Ubuntu
  GpuHangFrequency: Several times a day
  GpuHangReproducibility: Occurs more often under certain circumstances
  GpuHangStarted: Within the last few days
  GraphicsCard:
   Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07) (prog-if 00 [VGA controller])
     Subsystem: Lenovo Device [17aa:20e4]
     Subsystem: Lenovo Device [17aa:20e4]
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha amd64 (20110803.1)
  MachineType: LENOVO 2241B48
  PccardctlIdent:
   Socket 0:
     no product info available
  PccardctlStatus:
   Socket 0:
     no card
  ProcEnviron:
   LANGUAGE=en_GB:en
   PATH=(custom, user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.0.0-12-generic root=UUID=4587a2fe-b540-495f-ab91-999ee1b53a2a ro quiet splash vt.handoff=7
  SourcePackage: xorg
  Symptom: display
  Title: Xorg freeze
  UpgradeStatus: Upgraded to oneiric on 2011-09-30 (4 days ago)
  dmi.bios.date: 04/22/2009
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 6FET66WW (2.16 )
  dmi.board.name: 2241B48
  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:bvr6FET66WW(2.16):bd04/22/2009:svnLENOVO:pn2241B48:pvrThinkPadT500:rvnLENOVO:rn2241B48:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 2241B48
  dmi.product.version: ThinkPad T500
  dmi.sys.vendor: LENOVO
  version.compiz: compiz 1:0.9.6+bzr20110929-0ubuntu3
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.26-1ubuntu1
  version.libgl1-mesa-dri: libgl1-mesa-dri 7.11-0ubuntu3
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 7.11-0ubuntu3
  version.xserver-xorg: xserver-xorg 1:7.6+7ubuntu7
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.0-1ubuntu13
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20110811.g93fc084-0ubuntu1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.15.901-1ubuntu2
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110411+8378443-1

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