None of us can explain the oops, which is worrisome. So lets cross our
fingers and hope it never happens again. If it does, hopefully we can
establish a pattern and work out the cause.

** Changed in: xserver-xorg-video-intel (Ubuntu)
       Status: Confirmed => Incomplete

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https://bugs.launchpad.net/bugs/1136699

Title:
  xserver crash in drm_vblank_count_and_time

Status in “linux” package in Ubuntu:
  Incomplete
Status in “xserver-xorg-video-intel” package in Ubuntu:
  Incomplete

Bug description:
  Call Trace:
   ? drm_wait_vblank+0x21a/0x5c0
   ? try_to_wake_up+0x2a0/0x2a0
   drm_ioctl+0x4e9/0x5b0
   ? drm_modeset_ctl+0x70/0x70
   do_vfs_ioctl+0x99/0x570
   sys_ioctl+0x91/0xb0
   ? sys_read+0x6b/0xa0
   system_call_fastpath+0x1a/0x1f

  RIP drm_vblank_count_and_time+0xd/0x60

  [Original Report]
  Starting some weeks ago my graphics has been misbehaving a bit. This started 
with starting in low graphics mode from time to time, or booting to a VT 
instead of the LightDM greeter. Today I had a complete crash while running a 
Google Hangout. I've attached a picture of the screen output in case that's 
helpful.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: xorg 1:7.7+1ubuntu4
  ProcVersionSignature: Ubuntu 3.8.0-7.15-generic 3.8.0
  Uname: Linux 3.8.0-7-generic x86_64
  .tmp.unity.support.test.0:

  ApportVersion: 2.8-0ubuntu4
  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
  Date: Thu Feb 28 16:45:28 2013
  DistUpgraded: 2013-02-05 13:12:39,470 DEBUG enabling apt cron job
  DistroCodename: raring
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes
  GraphicsCard:
   Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller 
(primary) [8086:2a02] (rev 03) (prog-if 00 [VGA controller])
     Subsystem: Dell Device [1028:0279]
     Subsystem: Dell Device [1028:0279]
  InstallationDate: Installed on 2012-11-04 (116 days ago)
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
  MachineType: Dell Inc. Studio Hybrid 140g
  MarkForUpload: True
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-7-generic 
root=UUID=e4eb06cb-d4ba-40c3-ac8f-7af8f0973b69 ro quiet splash vt.handoff=7
  SourcePackage: xorg
  UpgradeStatus: Upgraded to raring on 2013-02-05 (23 days ago)
  dmi.bios.date: 09/26/2008
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.0.6
  dmi.board.asset.tag: To Be Filled By O.E.M.
  dmi.board.name: 0P096C
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 3
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: '01'
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.0.6:bd09/26/2008:svnDellInc.:pnStudioHybrid140g:pvr00:rvnDellInc.:rn0P096C:rvrA01:cvnDellInc.:ct3:cvr'01':
  dmi.product.name: Studio Hybrid 140g
  dmi.product.version: 00
  dmi.sys.vendor: Dell Inc.
  version.compiz: compiz 1:0.9.9~daily13.02.19-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.42-0ubuntu1
  version.libgl1-mesa-dri: libgl1-mesa-dri 9.0.2-0ubuntu1
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 9.0.2-0ubuntu1
  version.xserver-xorg-core: xserver-xorg-core 2:1.13.2-0ubuntu2
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.1.0-0ubuntu1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.21.3-0ubuntu1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 
1:1.0.6-0ubuntu3
  xserver.bootTime: Thu Feb 28 16:04:53 2013
  xserver.configfile: default
  xserver.errors:

  xserver.logfile: /var/log/Xorg.0.log
  xserver.version: 2:1.13.2-0ubuntu2
  xserver.video_driver: intel

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