Public bug reported:

Xorg crashes several times a day. Sometimes within minutes of each
other.

This is a laptop and i use an external monitor, along with the laptop
screen. It's an intel graphics card.

Here's the backtrace from Xorg.0.log:
Backtrace:
[   263.321] 0: /usr/bin/X (xorg_backtrace+0x26) [0x4a2656]
[   263.321] 1: /usr/bin/X (0x400000+0x621ca) [0x4621ca]
[   263.321] 2: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7fa16b81f000+0xfc60) 
[0x7fa16b82ec60]
[   263.321] 3: /usr/bin/X (0x400000+0x21288) [0x421288]
[   263.321] Segmentation fault at address 0x2000007d6900
[   263.321]
Caught signal 11 (Segmentation fault). Server aborting

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: xorg 1:7.6+4ubuntu3.1
ProcVersionSignature: Ubuntu 2.6.38-10.46-generic 2.6.38.7
Uname: Linux 2.6.38-10-generic x86_64
Architecture: amd64
CompizPlugins: No value set for 
`/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
Date: Tue Jul 19 15:01:04 2011
DistUpgraded: Log time: 2011-04-28 10:01:37.003824
DistroCodename: natty
DistroVariant: ubuntu
DkmsStatus:
 virtualbox-ose, 4.0.4, 2.6.38-10-generic, x86_64: installed 
 virtualbox-ose, 4.0.4, 2.6.38-8-generic, x86_64: installed 
 virtualbox-ose, 4.0.4, 2.6.38-9-generic, x86_64: installed
GraphicsCard:
 Intel Corporation Core Processor Integrated Graphics Controller [8086:0046] 
(rev 02) (prog-if 00 [VGA controller])
   Subsystem: Dell Device [1028:040a]
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100427.1)
MachineType: Dell Inc. Latitude E6410
ProcEnviron:
 LANGUAGE=nb_NO:en
 LANG=en_GB.UTF-8
 LC_MESSAGES=nb_NO.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-10-generic 
root=UUID=caab9ccd-cdf0-4484-b500-38cb9286870f ro quiet splash vt.handoff=7
Renderer: Unknown
SourcePackage: xorg
Symptom: display
Title: Xorg crash
UpgradeStatus: Upgraded to natty on 2011-04-28 (82 days ago)
dmi.bios.date: 05/26/2011
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A09
dmi.board.name: 0667CC
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias: 
dmi:bvnDellInc.:bvrA09:bd05/26/2011:svnDellInc.:pnLatitudeE6410:pvr0001:rvnDellInc.:rn0667CC:rvrA00:cvnDellInc.:ct9:cvr:
dmi.product.name: Latitude E6410
dmi.product.version: 0001
dmi.sys.vendor: Dell Inc.
version.compiz: compiz 1:0.9.4+bzr20110606-0ubuntu1~natty2
version.ia32-libs: ia32-libs 20090808ubuntu13
version.libdrm2: libdrm2 2.4.23-1ubuntu6
version.libgl1-mesa-dri: libgl1-mesa-dri 7.10.2-0ubuntu2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.2-0ubuntu2
version.xserver-xorg: xserver-xorg 1:7.6+4ubuntu3.1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu4.1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu7.1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 
1:0.0.16+git20110107+b795ca6e-0ubuntu7

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


** Tags: amd64 apport-bug crash natty regression-update ubuntu

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  Xorg crash

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