Public bug reported:

I am somewhat used to having GPU lockups hang X for me maybe once a
week.  I've followed a few vague bugs on the problem, but over the past
weekend this has grown to every couple of hours.

Easy ways to trigger it: changing workspaces too quickly while there is
disk activity, or letting the screensaver go into power saving mode on
the screen.  The last one requires a hard reboot and I end up with the
screen in a very dim state after the boot.

Have a kern.log, if it helps.

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: xorg 1:7.7+1ubuntu4
ProcVersionSignature: Ubuntu 3.8.0-31.46-generic 3.8.13.8
Uname: Linux 3.8.0-31-generic x86_64
.tmp.unity.support.test.0:
 
ApportVersion: 2.9.2-0ubuntu8.4
Architecture: amd64
CompizPlugins: 
[core,bailer,detection,composite,opengl,decor,snap,gnomecompat,grid,regex,mousepoll,compiztoolbox,resize,move,wall,animation,vpswitch,place,imgpng,workarounds,expo,fade,ezoom,session,scale,unityshell]
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
Date: Mon Sep 16 14:03:35 2013
DistUpgraded: 2013-03-19 10:32:34,118 ERROR got an error from dpkg for pkg: 
'/var/cache/apt/archives/python-novaclient_1%3a2.11.1-0ubuntu1_all.deb': 
'subprocess new pre-removal script returned error exit status 1'
DistroCodename: raring
DistroVariant: ubuntu
EcryptfsInUse: Yes
ExtraDebuggingInterest: Yes
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]
MachineType: LENOVO 7465CTO
MarkForUpload: True
ProcKernelCmdLine: root=UUID=5237fceb-23d0-412d-84d9-b8f8b3bf28af ro quiet 
splash
SourcePackage: xorg
UpgradeStatus: Upgraded to raring on 2013-03-19 (181 days ago)
dmi.bios.date: 06/25/2009
dmi.bios.vendor: LENOVO
dmi.bios.version: 6DET55WW (3.05 )
dmi.board.name: 7465CTO
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:bvr6DET55WW(3.05):bd06/25/2009:svnLENOVO:pn7465CTO:pvrThinkPadX200s:rvnLENOVO:rn7465CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 7465CTO
dmi.product.version: ThinkPad X200s
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:0.9.9~daily13.06.19~13.04-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.43-0ubuntu1.1
version.libgl1-mesa-dri: libgl1-mesa-dri 9.1.4-0ubuntu0.1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 9.1.4-0ubuntu0.1
version.xserver-xorg-core: xserver-xorg-core 2:1.13.3-0ubuntu6.1
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 2:2.21.6-0ubuntu4.1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.7-0ubuntu1
xserver.bootTime: Mon Sep 16 13:31:40 2013
xserver.configfile: /etc/X11/xorg.conf
xserver.errors:
 
xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.13.3-0ubuntu6.1
xserver.video_driver: intel

** Affects: xorg (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug compiz-0.9 raring third-party-packages ubuntu

** Attachment added: "kern.log"
   https://bugs.launchpad.net/bugs/1226039/+attachment/3823690/+files/kern.log

-- 
You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to xorg in Ubuntu.
https://bugs.launchpad.net/bugs/1226039

Title:
  frequency of gpu hangs increased dramatically over the weekend

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