Public bug reported:

Since my Upgrade to 13.10 I get regular Xorg crashes (logout back to the
login manager) on this Samsung Series 5 Chromebook.

It sometimes happens when the desktop is idle and I'm not using the
computer, but seems to appear more frequently when I do graphically more
advanced things like browsing in Firefox or starting a Google Hangout.

I have attached the stack trace. Please tell me if it looks like a
graphics driver bug, I'll report it upstream at Intel in that case.

Thanks!

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: xorg 1:7.7+1ubuntu6
Uname: Linux 3.4.0 i686
.tmp.unity.support.test.0:
 
ApportVersion: 2.12.5-0ubuntu2.1
Architecture: i386
CompizPlugins: No value set for 
`/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CurrentDmesg: Error: command ['sh', '-c', 'dmesg | comm -13 --nocheck-order 
/var/log/dmesg -'] failed with exit code 1: comm: /var/log/dmesg: Permission 
denied
Date: Wed Dec 18 18:17:54 2013
DistroCodename: saucy
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, including running git bisection searches
GraphicsCard:
 Intel Corporation Atom Processor D4xx/D5xx/N4xx/N5xx Integrated Graphics 
Controller [8086:a011] (rev 02) (prog-if 00 [VGA controller])
   Subsystem: Intel Corporation Device [8086:c0a7]
   Subsystem: Intel Corporation Device [8086:c0a7]
InstallationDate: Installed on 2011-04-28 (965 days ago)
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
MachineType: SAMSUNG ELECTRONICS CO., LTD. Alex
MarkForUpload: True
ProcKernelCmdLine: console=tty1 init=/sbin/init add_efi_memmap boot=local 
rootwait ro noresume noswap i915.modeset=1 loglevel=7 
kern_guid=ad75d013-2bd2-6641-a511-345eec259cb5 tpm_tis.force=1 
tpm_tis.interrupts=0 root=/dev/sda7 noinitrd
SourcePackage: xorg
UpgradeStatus: Upgraded to saucy on 2013-10-20 (58 days ago)
dmi.bios.date: 04/07/2011
dmi.bios.vendor: INSYDE
dmi.bios.version: Alex.03.61.0735.0056G3.0021
dmi.board.asset.tag: SAMSUNG
dmi.board.name: G100
dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.board.version: Not Applicable
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 1
dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.chassis.version: N/A
dmi.modalias: 
dmi:bvnINSYDE:bvrAlex.03.61.0735.0056G3.0021:bd04/07/2011:svnSAMSUNGELECTRONICSCO.,LTD.:pnAlex:pvrAlex.03.61.0735.0056G3.0021:rvnSAMSUNGELECTRONICSCO.,LTD.:rnG100:rvrNotApplicable:cvnSAMSUNGELECTRONICSCO.,LTD.:ct1:cvrN/A:
dmi.product.name: Alex
dmi.product.version: Alex.03.61.0735.0056G3.0021
dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
version.compiz: compiz 1:0.9.10+13.10.20131011-0ubuntu1
version.libdrm2: libdrm2 2.4.46-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 9.2.1-1ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 9.2.1-1ubuntu3
version.xserver-xorg-core: xserver-xorg-core 2:1.14.3-3ubuntu2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu3.1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.2.0-0ubuntu10
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.904-0ubuntu2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.9-2ubuntu1
xserver.bootTime: Wed Dec 18 18:09:44 2013
xserver.configfile: default
xserver.errors:
 
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
 product id                               12610 
 vendor                                     SEC
xserver.version: 2:1.14.3-3ubuntu2

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


** Tags: apport-bug compiz-0.9 i386 saucy ubuntu

** Attachment added: "Xorg.0.log.old"
   
https://bugs.launchpad.net/bugs/1262291/+attachment/3931956/+files/Xorg.0.log.old

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https://bugs.launchpad.net/bugs/1262291

Title:
  xorg crashes with bus error

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