[sandybridge-m-gt2] False GPU lockup IPEHR: 0x0b160001 IPEHR: 0x0b140001

[penalvch]

lsb_release -rd
Description: Ubuntu Trusty Tahr (development branch)
Release: 14.04

apt-cache policy xserver-xorg-video-intel
xserver-xorg-video-intel:
  Installed: 2:2.99.907-0ubuntu1
  Candidate: 2:2.99.907-0ubuntu1
  Version table:
 *** 2:2.99.907-0ubuntu1 0
        500 http://us.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
        100 /var/lib/dpkg/status

I was running quite a few thing simultaneously, boinc, Netflix as outlined in https://wiki.ubuntu.com/penalvch#Netflix_in_Xubuntu , a few Firefox windows, LibreOffice, Gnumeric, and Mousepad. I was switching between Firefox windows and I noticed a graphical glitch, and then this crash report. This is not reproducible, doing exactly what I did, nor has it happened before. As well, I did not have to restart, it appeared to recover quite gracefully.

ProblemType: Crash
DistroRelease: Ubuntu 14.04
Package: xserver-xorg-video-intel 2:2.99.907-0ubuntu1
ProcVersionSignature: Ubuntu 3.13.0-2.17-generic 3.13.0-rc7
Uname: Linux 3.13.0-2-generic x86_64
ApportVersion: 2.13.1-0ubuntu1
Architecture: amd64
Chipset: sandybridge-m-gt2
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
Date: Tue Jan 14 17:40:58 2014
DistUpgraded: Fresh install
DistroCodename: trusty
DistroVariant: ubuntu
DkmsStatus:
 fwts-efi-runtime-dkms, 13.12.00, 3.13.0-1-generic, x86_64: installed
 fwts-efi-runtime-dkms, 13.12.00, 3.13.0-2-generic, x86_64: installed
 virtualbox, 4.3.2, 3.13.0-1-generic, x86_64: installed
 virtualbox, 4.3.2, 3.13.0-2-generic, x86_64: installed
DuplicateSignature: [sandybridge-m-gt2] GPU lockup IPEHR: 0x0b160001 IPEHR: 0x0b140001 Ubuntu 14.04
ExecutablePath: /usr/share/apport/apport-gpu-error-intel.py
ExtraDebuggingInterest: Yes, including running git bisection searches
GraphicsCard:
 Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0116] (rev 09) (prog-if 00 [VGA controller])
   Subsystem: Acer Incorporated [ALI] Device [1025:0504]
InstallationDate: Installed on 2013-12-19 (26 days ago)
InstallationMedia: Xubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20131219)
InterpreterPath: /usr/bin/python3.3
MachineType: Acer Aspire 5750
ProcCmdline: /usr/bin/python3 /usr/share/apport/apport-gpu-error-intel.py
ProcEnviron:

ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-2-generic root=UUID=83e7409a-0aa3-4a56-b32e-294c6722287f ro quiet splash vt.handoff=7
RelatedPackageVersions:
 xserver-xorg 1:7.7+1ubuntu7
 libdrm2 2.4.50-1
 xserver-xorg-video-intel 2:2.99.907-0ubuntu1
SourcePackage: xserver-xorg-video-intel
Title: [sandybridge-m-gt2] False GPU lockup IPEHR: 0x0b160001 IPEHR: 0x0b140001
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

dmi.bios.date: 08/09/2012
dmi.bios.vendor: Acer
dmi.bios.version: V1.21
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: JE50_HR
dmi.board.vendor: Acer
dmi.board.version: Base Board Version
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: V1.21
dmi.modalias: dmi:bvnAcer:bvrV1.21:bd08/09/2012:svnAcer:pnAspire5750:pvrV1.21:rvnAcer:rnJE50_HR:rvrBaseBoardVersion:cvnAcer:ct10:cvrV1.21:
dmi.product.name: Aspire 5750
dmi.product.version: V1.21
dmi.sys.vendor: Acer
version.compiz: compiz N/A
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.50-1
version.libgl1-mesa-dri: libgl1-mesa-dri 10.0.1-1ubuntu2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.0.1-1ubuntu2
version.xserver-xorg-core: xserver-xorg-core 2:1.14.5-1ubuntu2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.2.0-0ubuntu10
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.907-0ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu1
xserver.bootTime: Tue Jan 14 11:41:07 2014
xserver.configfile: default
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
 product id 8940
 vendor AUO
xserver.version: 2:1.14.5-1ubuntu2