Public bug reported:

Ok I've reported this bug before but without uploading info.

System has been freezing randomly for a year now or more. Since I first 
upgraded from 11.10 to 12.04. 
Random freezes, sometimes with lockedup screen,keyboard and mouse snd sometimes 
just screen and keyboard. I can sometimes enter the tty terminals, and reboot 
from there.

It also happend when I tried to use Fedora 17 - very strange....

Happens a few times a day, and cannot be produced by will.


Hope the info below can help understand my starting point....


*****

*******************************
Here is an output of my graphics:
*******************************


mosh@mosh-desktop:~$ /usr/lib/nux/unity_support_test -p
OpenGL vendor string:   Intel Open Source Technology Center
OpenGL renderer string: Mesa DRI Intel(R) Sandybridge Desktop x86/MMX/SSE2
OpenGL version string:  3.0 Mesa 9.2.0

Not software rendered:    yes
Not blacklisted:          yes
GLX fbconfig:             yes
GLX texture from pixmap:  yes
GL npot or rect textures: yes
GL vertex program:        yes
GL fragment program:      yes
GL vertex buffer object:  yes
GL framebuffer object:    yes
GL version is 1.4+:       yes

Unity 3D supported:       yes
mosh@mosh-desktop:~$ 

****

mosh@mosh-desktop:~$ lshw -c video
WARNING: you should run this program as super-user.
  *-display               
       description: VGA compatible controller
       product: 2nd Generation Core Processor Family Integrated Graphics 
Controller
       vendor: Intel Corporation
       physical id: 2
       bus info: pci@0000:00:02.0
       version: 09
       width: 64 bits
       clock: 33MHz
       capabilities: vga_controller bus_master cap_list rom
       configuration: driver=i915 latency=0
       resources: irq:50 memory:fe000000-fe3fffff memory:e0000000-efffffff 
ioport:f000(size=64)
WARNING: output may be incomplete or inaccurate, you should run this program as 
super-user.
mosh@mosh-desktop:~$ 


*****


***************
Computer specs:
***************
Processor:  Intel Core i5-2300 2.8GHZ-3.1GHZ' 6MB Cache 95W LGA1155

Motherboard:   Intel Bearup lake DH67BL H67 LGA1155 uATX

Internal Memory:  Kingstom DDR3 4096 MB 1333MHZ CL9

Hard Drive:  Samsung HD105SI 1TB 32MB 5400rpm EcoGreen F3 3/5 SATA2

-  NEC DVD-RW AD-7260S X24

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: xorg 1:7.7+1ubuntu4
Uname: Linux 3.9.0-030900rc8-generic i686
.tmp.unity.support.test.0:
 
ApportVersion: 2.9.2-0ubuntu8.5
Architecture: i386
CompizPlugins: 
[core,bailer,detection,composite,opengl,decor,compiztoolbox,mousepoll,regex,animation,place,grid,imgpng,move,unitymtgrabhandles,vpswitch,workarounds,session,resize,gnomecompat,snap,wall,expo,ezoom,fade,scale,unityshell]
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
Date: Fri Oct 25 11:01:38 2013
DistUpgraded: 2013-10-25 10:46:42,525 DEBUG enabling apt cron job
DistroCodename: raring
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, if not too technical
GpuHangFrequency: Several times a day
GpuHangReproducibility: Seems to happen randomly
GpuHangStarted: Since before I upgraded
GraphicsCard:
 Intel Corporation 2nd Generation Core Processor Family Integrated Graphics 
Controller [8086:0102] (rev 09) (prog-if 00 [VGA controller])
   Subsystem: Intel Corporation Device [8086:2002]
InstallationDate: Installed on 2012-12-17 (311 days ago)
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
MarkForUpload: True
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=he_IL.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.9.0-030900rc8-generic 
root=UUID=5fdc7912-c306-4d18-bc7c-b37ba8bc13ec ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
Title: Xorg freeze
UpgradeStatus: Upgraded to raring on 2013-10-25 (0 days ago)
dmi.bios.date: 11/15/2010
dmi.bios.vendor: Intel Corp.
dmi.bios.version: BLH6710H.86A.0076.2010.1115.1959
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: DH67BL
dmi.board.vendor: Intel Corporation
dmi.board.version: AAG10189-203
dmi.chassis.type: 3
dmi.modalias: 
dmi:bvnIntelCorp.:bvrBLH6710H.86A.0076.2010.1115.1959:bd11/15/2010:svn:pn:pvr:rvnIntelCorporation:rnDH67BL:rvrAAG10189-203:cvn:ct3:cvr:
version.compiz: compiz 1:0.9.9~daily13.06.19~13.04-0ubuntu1
version.libdrm2: libdrm2 2.4.46+git20130910.58d00888-0ubuntu0sarvatt~raring
version.libgl1-mesa-dri: libgl1-mesa-dri 
9.2.0~git20131002+9.2.2eb55601-0ubuntu0sarvatt~raring
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 
9.2.0~git20131002+9.2.2eb55601-0ubuntu0sarvatt~raring
version.xserver-xorg-core: xserver-xorg-core 
2:1.13.4~git20130508+server-1.13-branch.10c42f57-0ubuntu0ricotz~raring
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu2b2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 
1:7.1.99+git20130730.6a278369-0ubuntu0sarvatt~raring
version.xserver-xorg-video-intel: xserver-xorg-video-intel 
2:2.99.905+git20131023.b70390b4-0ubuntu0sarvatt~raring
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 
1:1.0.9+git20130730.300c5a32-0ubuntu0sarvatt~raring
xserver.bootTime: Fri Oct 25 10:04:59 2013
xserver.configfile: default
xserver.errors:
 
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
 product id                               28956 
 vendor                                     VSC
xserver.version: 
2:1.13.4~git20130508+server-1.13-branch.10c42f57-0ubuntu0ricotz~raring

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


** Tags: apport-bug compiz-0.9 freeze i386 raring third-party-packages ubuntu

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which is subscribed to xorg in Ubuntu.
https://bugs.launchpad.net/bugs/1244575

Title:
  Xorg freeze randomly since Ubuntu 12.04 till 13.04

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