Public bug reported:

I've been getting multiple random X crashes throughout the day and am
getting dumped back to the login screen.  I am on Ubuntu 12.04. I have
an nvidia card -- I was first using the nvidia_current drivers that are
present in the Ubuntu repositories, but am now trying the x-swap Nvidia
drivers (version 295+), but it hasn't seemed to make a different. This
is happening around once every one to two hours.

No obvious activity is related to the crash. Sometimes it happens while
web browsing. It last happened when I hit the next button in a music
player. It's also happened while editing text in VIM. Someone mentioned
to me that it may be related to flash, so I currently have flash
uninstalled, but it makes no difference.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: xorg 1:7.6+12ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-24.37-generic 3.2.14
Uname: Linux 3.2.0-24-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: ""
.proc.driver.nvidia.version:
 NVRM version: NVIDIA UNIX x86_64 Kernel Module  295.40  Thu Apr  5 21:37:00 
PDT 2012
 GCC version:  gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5)
.tmp.unity.support.test.0:
 
ApportVersion: 2.0.1-0ubuntu7
Architecture: amd64
CompizPlugins: 
[core,composite,opengl,decor,regex,animation,place,neg,put,grid,session,workarounds,resize,mousepoll,imgpng,compiztoolbox,expo,wall,vpswitch,snap,gnomecompat,move,fade,ezoom,scale,unitymtgrabhandles,unityshell]
CompositorRunning: compiz
Date: Sat Apr 28 15:42:57 2012
DistUpgraded: 2012-04-24 15:06:54,224 DEBUG enabling apt cron job
DistroCodename: precise
DistroVariant: ubuntu
DkmsStatus:
 nvidia-current, 295.40, 3.2.0-24-generic, x86_64: installed
 vboxhost, 4.1.14, 3.2.0-24-generic, x86_64: installed
EcryptfsInUse: Yes
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
 NVIDIA Corporation G92 [GeForce 9800 GTX] [10de:0612] (rev a2) (prog-if 00 
[VGA controller])
   Subsystem: eVga.com. Corp. Device [3842:c873]
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
JockeyStatus:
 kmod:nvidia_173 - NVIDIA binary Xorg driver, kernel module and VDPAU library 
(Proprietary, Disabled, Not in use)
 kmod:nvidia_current - nvidia_current (Proprietary, Enabled, Not in use)
 kmod:nvidia_current_updates - NVIDIA binary Xorg driver, kernel module and 
VDPAU library (Proprietary, Disabled, Not in use)
 kmod:nvidia_173_updates - NVIDIA binary Xorg driver, kernel module and VDPAU 
library (Proprietary, Disabled, Not in use)
MachineType: Gigabyte Technology Co., Ltd. X58A-UD3R
ProcEnviron:
 TERM=xterm
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-24-generic 
root=UUID=8e2b57eb-d024-4f05-a705-2874ffe824cf ro quiet splash vt.handoff=7
SourcePackage: xorg
UpgradeStatus: Upgraded to precise on 2012-04-24 (4 days ago)
dmi.bios.date: 02/18/2011
dmi.bios.vendor: Award Software International, Inc.
dmi.bios.version: FF
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.:bvrFF:bd02/18/2011: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 1:0.9.7.6-0ubuntu1
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 N/A

** Affects: xorg (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug compiz-0.9 possible-manual-nvidia-install precise 
ubuntu

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https://bugs.launchpad.net/bugs/990712

Title:
  Random xorg crashes

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