Public bug reported:

Xorg suddenly logged me off without warning. All the unsaved data got
lost.

I was using Virtualbox when this happened (just to clarify: Ubuntu is
the HOST system; inside it I was running virtualbox with a Windows
guest)

The logoff may well have been triggered by a VirtualBox crash caused by
a bug in VirtualBox, but if Xorg crashes because of a program, no matter
how badly the program behaves, there's a dreadful bug in Xorg.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: xorg 1:7.6+7ubuntu7.1
ProcVersionSignature: Ubuntu 3.0.0-19.33-generic 3.0.27
Uname: Linux 3.0.0-19-generic i686
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 Kernel Module  280.13  Wed Jul 27 16:55:43 PDT 
2011
 GCC version:  gcc version 4.6.1 (Ubuntu/Linaro 4.6.1-9ubuntu3)
.tmp.unity.support.test.0:
 
ApportVersion: 1.23-0ubuntu4
Architecture: i386
CompizPlugins: 
[core,bailer,detection,composite,opengl,decor,vpswitch,mousepoll,compiztoolbox,snap,place,resize,session,regex,grid,wall,move,gnomecompat,imgpng,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell]
CompositorRunning: None
Date: Sat May  5 00:34:53 2012
DistUpgraded: Log time: 2011-12-07 19:34:40.350850
DistroCodename: oneiric
DistroVariant: ubuntu
DkmsStatus:
 nvidia-173, 173.14.30, 3.0.0-19-generic, i686: installedError! Could not 
locate dkms.conf file.
 File:  does not exist.
 
 nvidia-current, 280.13, 3.0.0-19-generic, i686: installed
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
 nVidia Corporation G84 [GeForce 9500M GS] [10de:0405] (rev a1) (prog-if 00 
[VGA controller])
   Subsystem: ASUSTeK Computer Inc. Device [1043:15d2]
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
JockeyStatus:
 xorg:nvidia_173 - NVIDIA accelerated graphics driver (Proprietary, Disabled, 
Not in use)
 xorg:nvidia_173_updates - NVIDIA accelerated graphics driver (post-release 
updates) (Proprietary, Disabled, Not in use)
 xorg:nvidia_current - NVIDIA accelerated graphics driver (Proprietary, 
Enabled, In use)
 pkg:sl-modem-daemon - Software modem (Proprietary, Disabled, Not in use)
 xorg:nvidia_current_updates - NVIDIA accelerated graphics driver (post-release 
updates) (Proprietary, Disabled, Not in use)
MachineType: ASUSTeK Computer Inc. M51Sn
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-19-generic 
root=UUID=173acbf5-26a0-49e3-8d2b-f1c142582cbf ro quiet splash vt.handoff=7
SourcePackage: xorg
UpgradeStatus: Upgraded to oneiric on 2011-12-07 (149 days ago)
dmi.bios.date: 12/24/2007
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 303
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: M51Sn
dmi.board.vendor: ASUSTeK Computer Inc.
dmi.board.version: 1.0
dmi.chassis.asset.tag: ATN12345678901234567
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK Computer Inc.
dmi.chassis.version: 1.0
dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvr303:bd12/24/2007:svnASUSTeKComputerInc.:pnM51Sn:pvr1.0:rvnASUSTeKComputerInc.:rnM51Sn:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
dmi.product.name: M51Sn
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK Computer Inc.
version.compiz: compiz 1:0.9.6+bzr20110929-0ubuntu6.1
version.libdrm2: libdrm2 2.4.26-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 7.11-0ubuntu3.2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 7.11-0ubuntu3.2
version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
version.xserver-xorg: xserver-xorg 1:7.6+7ubuntu7.1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.0-1ubuntu13
version.xserver-xorg-video-ati: xserver-xorg-video-ati 
1:6.14.99~git20110811.g93fc084-0ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.15.901-1ubuntu2.2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 
1:0.0.16+git20110411+8378443-1

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


** Tags: apport-bug i386 oneiric running-unity ubuntu

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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/994879

Title:
  suddenly logs out

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