[i915gm] GPU lockup (ESR: 0x00000001 IPEHR: 0x7d8e0001)

[omanni]

Binary package hint: xserver-xorg-video-intel

don't know what happened

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: xserver-xorg-video-intel 2:2.14.0-4ubuntu5
ProcVersionSignature: Ubuntu 2.6.38-7.39-generic 2.6.38
Uname: Linux 2.6.38-7-generic i686
Architecture: i386
Chipset: i915gm
Date: Tue Apr 5 21:47:21 2011
DistroCodename: natty
DistroVariant: ubuntu
DuplicateSignature: (ESR: 0x00000001 IPEHR: 0x7d8e0001)
ExecutablePath: /usr/share/apport/apport-gpu-error-intel.py
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha i386 (20110302)
InterpreterPath: /usr/bin/python2.7
MachineType: IBM 25256NG
ProcCmdline: /usr/bin/python /usr/share/apport/apport-gpu-error-intel.py
ProcEnviron:

ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-7-generic root=UUID=7183bb68-4c00-40fd-8f47-d152b6af4f26 ro quiet splash vt.handoff=7
RelatedPackageVersions:
 xserver-xorg 1:7.6+4ubuntu1
 libdrm2 2.4.23-1ubuntu5
 xserver-xorg-video-intel 2:2.14.0-4ubuntu5
SourcePackage: xserver-xorg-video-intel
Title: [i915gm] GPU lockup (ESR: 0x00000001 IPEHR: 0x7d8e0001)
UdevDb: Error: [Errno 2] No such file or directory
UpgradeStatus: Upgraded to natty on 2011-03-28 (7 days ago)
UserGroups:

dmi.bios.date: 12/14/2006
dmi.bios.vendor: IBM
dmi.bios.version: 74ET64WW (2.09 )
dmi.board.name: 25256NG
dmi.board.vendor: IBM
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: IBM
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnIBM:bvr74ET64WW(2.09):bd12/14/2006:svnIBM:pn25256NG:pvrThinkPadX41:rvnIBM:rn25256NG:rvrNotAvailable:cvnIBM:ct10:cvrNotAvailable:
dmi.product.name: 25256NG
dmi.product.version: ThinkPad X41
dmi.sys.vendor: IBM
version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.1-0ubuntu3
version.xserver-xorg: xserver-xorg 1:7.6+4ubuntu1