sds, this bug was reported a while ago and there hasn't been any
activity in it recently. We were wondering if this is still an issue? If
so, could you please test for this with the latest development release
of Ubuntu? ISO images are available from http://cdimage.ubuntu.com
/daily-live/current/ .

If it remains an issue, could you please run the following command in
the development release from a Terminal
(Applications->Accessories->Terminal), as it will automatically gather
and attach updated debug information to this report:

apport-collect -p xorg-server REPLACE-WITH-BUG-NUMBER

Please note, given that the information from the prior release is
already available, doing this on a release prior to the development one
would not be helpful.

Thank you for your understanding.

Helpful bug reporting tips:
https://wiki.ubuntu.com/ReportingBugs

** Changed in: xorg-server (Ubuntu)
   Importance: Undecided => Low

** Changed in: xorg-server (Ubuntu)
       Status: New => Incomplete

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You received this bug notification because you are a member of Desktop
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https://bugs.launchpad.net/bugs/1182156

Title:
  GPU lockup: Xorg is pegged - constantly redrawing the panel

Status in “xorg-server” package in Ubuntu:
  Incomplete

Bug description:
  every now and then my Xorg becomes extremely unresponsive, constantly 
redrawing the panel.
  restarting the panel does not help.

    PID USER      PR  NI  VIRT  RES  SHR S  %CPU %MEM    TIME+  COMMAND         
                                                      
   1491 root      20   0  427m 138m 106m R  98.5  1.8   9:43.47 Xorg

  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: xserver-xorg-core 2:1.13.3-0ubuntu6
  ProcVersionSignature: Ubuntu 3.8.0-21.32-generic 3.8.8
  Uname: Linux 3.8.0-21-generic x86_64
  .tmp.unity.support.test.0:
   
  ApportVersion: 2.9.2-0ubuntu8
  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: Mon May 20 13:18:21 2013
  DistUpgraded: 2013-05-03 08:57:56,808 DEBUG enabling apt cron job
  DistroCodename: raring
  DistroVariant: ubuntu
  ExecutablePath: /usr/bin/Xorg
  GraphicsCard:
   Intel Corporation 2nd Generation Core Processor Family Integrated Graphics 
Controller [8086:0126] (rev 09) (prog-if 00 [VGA controller])
     Subsystem: Lenovo Device [17aa:21cf]
  InstallationDate: Installed on 2011-11-01 (565 days ago)
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
  MachineType: LENOVO 42404EU
  MarkForUpload: True
  ProcEnviron:
   
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-21-generic 
root=UUID=38878cd7-8edb-411f-b50d-f004d003365b ro quiet splash 
enable_mtrr_cleanup mtrr_spare_reg_nr=1 mtrr_gran_size=32M mtrr_chunk_size=128M 
vt.handoff=7
  SourcePackage: xorg-server
  UpgradeStatus: Upgraded to raring on 2013-05-03 (17 days ago)
  dmi.bios.date: 07/11/2011
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 8AET49WW (1.29 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 42404EU
  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:bvr8AET49WW(1.29):bd07/11/2011:svnLENOVO:pn42404EU:pvrThinkPadT520:rvnLENOVO:rn42404EU:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 42404EU
  dmi.product.version: ThinkPad T520
  dmi.sys.vendor: LENOVO
  version.compiz: compiz 1:0.9.9~daily13.04.18.1~13.04-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.43-0ubuntu1
  version.libgl1-mesa-dri: libgl1-mesa-dri 9.1.1-0ubuntu3
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 9.1.1-0ubuntu3
  version.xserver-xorg-core: xserver-xorg-core 2:1.13.3-0ubuntu6
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu2b2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.1.0-0ubuntu2
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.21.6-0ubuntu4
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 
1:1.0.7-0ubuntu1
  xserver.bootTime: Mon May 20 09:16:49 2013
  xserver.configfile: default
  xserver.errors:
   intel(0): Detected a hung GPU, disabling acceleration.
   intel(0): When reporting this, please include i915_error_state from debugfs 
and the full dmesg.
  xserver.logfile: /var/log/Xorg.0.log
  xserver.version: 2:1.13.3-0ubuntu6
  xserver.video_driver: intel

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