Public bug reported: I've been using 12.04 beta since beta 1 and this problem has existed.
Essentially what happens is (normally) I'll be scrolling through a webpage and one of 3 things will happen. Either my current session exits, locks up entirely, or just locks up the UI allowing the mouse to still move. This happens on any desktop environment, whether it is Ubuntu 2D, Gnome classic, Gnome shell, Ubuntu unity, etc. It seems worse with gnome shell, where it almost always completely locks up. It seems most stable under gnome classic. Last time it locked up I sshed into the machine to see if I could figure out what happened. Xorg was at 100% CPU and not responding besides the mouse. Video playback froze, UI non responsive. This seems to be an architecture related problem and others seem to be having the same problem. See http://ubuntuforums.org/showthread.php?p=11783386 I've been checking dmesg and syslogs to see if I could figure out what might be causing the lockups/crashes. dmesg returned a few bits of information that may be helpful init: lightdm main process (1536) terminated with status 1 eclipse[4532]: segfault at 18 ip 00007f558e70d30e sp 00007fffd0fcb8f0 error in libgdk-x11-2.0.so..2400.10[7f558e69b000+ad000] init: failsafe-x main process (6661) terminated with status 1 I had killed the main xorg process, causing the last messaged in dmesg. Hopefully this will be helpful for someone. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: xorg 1:7.6+12ubuntu1 ProcVersionSignature: Ubuntu 3.2.0-22.35-generic 3.2.14 Uname: Linux 3.2.0-22-generic x86_64 NonfreeKernelModules: nvidia .proc.driver.nvidia.gpus.0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0' .proc.driver.nvidia.registry: Binary: "" .tmp.unity.support.test.0: ApportVersion: 2.0-0ubuntu4 Architecture: amd64 CompizPlugins: [core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell] CompositorRunning: None Date: Sun Apr 8 02:01:52 2012 DistUpgraded: Fresh install DistroCodename: precise DistroVariant: ubuntu ExtraDebuggingInterest: Yes, if not too technical InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20120325) MachineType: Gigabyte Technology Co., Ltd. X58A-UD3R ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.2.0-22-generic root=UUID=7427dafa-0a3b-4460-aa09-fff99b7b5a3c ro quiet splash vt.handoff=7 SourcePackage: xorg UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/04/2011 dmi.bios.vendor: Award Software International, Inc. dmi.bios.version: Fh3 dmi.board.name: X58A-UD3R dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: x.x dmi.chassis.type: 3 dmi.chassis.vendor: Gigabyte Technology Co., Ltd. dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrFh3:bd08/04/2011:svnGigabyteTechnologyCo.,Ltd.:pnX58A-UD3R:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnX58A-UD3R:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr: dmi.product.name: X58A-UD3R dmi.sys.vendor: Gigabyte Technology Co., Ltd. version.compiz: compiz 1:0.9.7.4-0ubuntu3 version.ia32-libs: ia32-libs 20090808ubuntu35 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.nvidia-graphics-drivers: nvidia-graphics-drivers N/A 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: xorg (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug 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/976383 Title: Periodic lockups or crashes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/976383/+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
