Forwarding this bug from Ubuntu reporter devtry: http://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/978084 [Problem] GPU lockup during RANDR operations [Original Description] 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
Created attachment 59746 [details] BootDmesg.txt
Created attachment 59747 [details] CurrentDmesg.txt
Created attachment 59748 [details] i915_error_state.txt
Created attachment 59749 [details] XorgLog.txt
Further description from user about what they saw during the failure: """ Unfortunately I was working and I had to restart the computer; anyway nearly nothing worked: it was just a miracle that I managed to report the bug. I couldn't even open a terminal, I don't think I would have managed to take a screenshot. Neither I had a camera at hand to take a photo. I'll do my best to describe what I saw: - no launcher appearing when approching the left screen side - no panel (the top bar) - all the windows (which were already open) overlapping and cut - clicking on a window didn't cause it to appear on the foreground, but I was able to interact with the application program (write, click buttons) - no keyboard shortcut worked (at least not visibly); I tried using these: CTRL-ALT-T (to open a Terminal), Windows button (to open the Dash), ALT-F4 (to close windows) - I was able to drag the windows I didn't think about this when it happened: maybe even if I was "blind" everything was working and I could take a screenshot. Anyway it's too late and I'm still not sure I could. Thanks! """
*** This bug has been marked as a duplicate of bug 36515 ***
I'm the original reporter devtry. Thanks to Bryce Harrington for reporting the bug upstream. I have subscribed myself to the bug 36515 and I will add my description to that bug; in fact the original description of the bug 36515 is not exactly the same as mine.
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