Public bug reported:

I was working on an external monitor with my notebook.
I changed the monitor settings to turn off the external monitor and turn on the 
notebook integrated monitor.
When I applied the changes something went wrong: I couldn't see anything. Then 
I replugged the VGA cable for the external monitor and something appeared 
again, but it's all working strange and not as it should.

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: xserver-xorg-video-intel 2:2.17.0-1ubuntu4
ProcVersionSignature: Ubuntu 3.2.0-22.35-generic-pae 3.2.14
Uname: Linux 3.2.0-22-generic-pae i686
.tmp.unity.support.test.0:
 
ApportVersion: 2.0-0ubuntu4
Architecture: i386
Chipset: gm45
CompizPlugins: No value set for 
`/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
Date: Tue Apr 10 16:30:18 2012
DistUpgraded: Fresh install
DistroCodename: precise
DistroVariant: ubuntu
DuplicateSignature: [gm45] GPU lockup  render.IPEHR: 0x01840000 Ubuntu 12.04
ExecutablePath: /usr/share/apport/apport-gpu-error-intel.py
ExtraDebuggingInterest: Yes, whatever it takes to get this fixed in Ubuntu
GpuHangFrequency: This is the first time
GpuHangReproducibility: I don't know
GpuHangStarted: Today
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta i386 (20120301)
InterpreterPath: /usr/bin/python2.7
MachineType: Acer Aspire 1810TZ
ProcCmdline: /usr/bin/python /usr/share/apport/apport-gpu-error-intel.py
ProcEnviron:
 
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-22-generic-pae 
root=UUID=834c4fb1-e775-4492-ac70-caa36a4c18fd ro quiet splash vt.handoff=7
SourcePackage: xserver-xorg-video-intel
Title: [gm45] GPU lockup  render.IPEHR: 0x01840000
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:
 
dmi.bios.date: 08/31/2010
dmi.bios.vendor: INSYDE
dmi.bios.version: v1.3314
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: JM11-MS
dmi.board.vendor: Acer
dmi.board.version: Base Board Version
dmi.chassis.type: 1
dmi.chassis.vendor: Chassis Manufacturer
dmi.chassis.version: Chassis Version
dmi.modalias: 
dmi:bvnINSYDE:bvrv1.3314:bd08/31/2010:svnAcer:pnAspire1810TZ:pvrv1.3314:rvnAcer:rnJM11-MS:rvrBaseBoardVersion:cvnChassisManufacturer:ct1:cvrChassisVersion:
dmi.product.name: Aspire 1810TZ
dmi.product.version: v1.3314
dmi.sys.vendor: Acer
version.compiz: compiz 1:0.9.7.4-0ubuntu3
version.libdrm2: libdrm2 2.4.32-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.2-0ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.2-0ubuntu3
version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu10
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 
1:6.14.99~git20111219.aacbd629-0ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.17.0-1ubuntu4
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 
1:0.0.16+git20111201+b5534a1-1build2

** Affects: xserver-xorg-video-intel (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-crash freeze i386 precise ubuntu

-- 
You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to xserver-xorg-video-intel in Ubuntu.
https://bugs.launchpad.net/bugs/978084

Title:
  [gm45] GPU lockup  render.IPEHR: 0x01840000

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