Public bug reported: When pressing ctrl-alt-down arrow windows are listed, but only painted halfway and the system locks. Moving between desktop with ctrl-alt left/right arrows works fine. I recovered by using sysrq-k.
ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: xorg 1:7.6+12ubuntu1 ProcVersionSignature: Ubuntu 3.4.0-5.11-generic 3.4.0 Uname: Linux 3.4.0-5-generic x86_64 NonfreeKernelModules: nvidia .proc.driver.nvidia.gpus.0: Error: [Errno 21] Er en filkatalog: '/proc/driver/nvidia/gpus/0' .proc.driver.nvidia.registry: Binary: "" .proc.driver.nvidia.version: NVRM version: NVIDIA UNIX x86_64 Kernel Module 295.53 Fri May 11 23:28:10 PDT 2012 GCC version: gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) .tmp.unity.support.test.0: ApportVersion: 2.0.1-0ubuntu9 Architecture: amd64 CompizPlugins: [core,composite,opengl,imgjpeg,compiztoolbox,decor,resize,imgpng,regex,text,grid,annotate,gnomecompat,wobbly,dbus,resizeinfo,imgsvg,animation,move,vpswitch,shift,water,place,mousepoll,blur,screenshot,session,kdecompat,fade,workarounds,cube,expo,rotate,unitymtgrabhandles,ezoom,scale,unityshell] CompositorRunning: compiz Date: Mon Jun 18 23:28:48 2012 DistUpgraded: 2012-04-21 02:56:09,131 DEBUG enabling apt cron job DistroCodename: precise DistroVariant: ubuntu ExtraDebuggingInterest: Yes, whatever it takes to get this fixed in Ubuntu GpuHangFrequency: Several times a week GpuHangReproducibility: Yes, I can easily reproduce it GpuHangStarted: Since a couple weeks or more GraphicsCard: NVIDIA Corporation GT200 [GeForce GTX 260] [10de:05e2] (rev a1) (prog-if 00 [VGA controller]) Subsystem: CardExpert Technology Device [10b0:0801] InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100427.1) MachineType: Hewlett-Packard HP xw4300 Workstation ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.4.0-5-generic root=/dev/mapper/1_TB_Raid1-Root_lucid_64 ro crashkernel=384M-2G:64M,2G-:128M quiet splash bootdegraded=true vt.handoff=7 SourcePackage: xorg Symptom: display Title: Xorg freeze UpgradeStatus: Upgraded to precise on 2012-04-21 (58 days ago) dmi.bios.date: 08/02/2006 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: 786D3 v01.10 dmi.board.name: 0A00h dmi.board.vendor: Hewlett-Packard dmi.chassis.asset.tag: CZC5320X63 dmi.chassis.type: 6 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvr786D3v01.10:bd08/02/2006:svnHewlett-Packard:pnHPxw4300Workstation:pvr:rvnHewlett-Packard:rn0A00h:rvr:cvnHewlett-Packard:ct6:cvr: dmi.product.name: HP xw4300 Workstation dmi.sys.vendor: Hewlett-Packard version.compiz: compiz 1:0.9.7.8-0ubuntu1 version.ia32-libs: ia32-libs 20090808ubuntu36 version.libdrm2: libdrm2 2.4.32-1ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.2-0ubuntu3.1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.2-0ubuntu3.1 version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu10.2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu1.2 version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.17.0-1ubuntu4 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A ** Affects: xorg (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug compiz-0.9 freeze possible-manual-nvidia-install precise ubuntu -- 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/1014858 Title: Xorg freeze when pressing ctrl-alt-down arrow To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1014858/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp