Public bug reported:

Since I upgraded to 12.10, my computer freezes randomly after some time. If I 
play Minecraft, it freezes after mac. 30min, if I use my computer normally it 
only freezes after 1 hour or more. I think it never happened if I used Gnome or 
Unity 2D (if I didn't play Minecraft there).
I can't use the mouse or get into the console with Ctrl+Alt+F1, so I have to 
manually reboot the computer every time it freezes.

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: xserver-xorg-video-nouveau 1:0.0.16+git20111201+b5534a1-1build2
ProcVersionSignature: Ubuntu 3.4.0-1.3-generic 3.4.0-rc5
Uname: Linux 3.4.0-1-generic x86_64
.tmp.unity.support.test.0:
 
ApportVersion: 2.0.1-0ubuntu7
Architecture: amd64
CompizPlugins: 
[core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell]
CompositorRunning: compiz
Date: Mon May 14 14:16:28 2012
DistUpgraded: Fresh install
DistroCodename: quantal
DistroVariant: ubuntu
DkmsStatus: virtualbox, 4.1.12, 3.4.0-1-generic, x86_64: installed
EcryptfsInUse: Yes
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
 NVIDIA Corporation GT215 [GeForce GT 320] [10de:0ca2] (rev a2) (prog-if 00 
[VGA controller])
   Subsystem: PC Partner Limited Device [174b:2150]
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120509)
MachineType: Acer Aspire X3300
ProcEnviron:
 PATH=(custom, no user)
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.4.0-1-generic 
root=UUID=e8cd3a64-f41c-4801-a68d-24619dbcb0d0 ro quiet splash vt.handoff=7
SourcePackage: xserver-xorg-video-nouveau
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/10/2009
dmi.bios.vendor: AMI
dmi.bios.version: P01-A3
dmi.board.name: WMCP78M
dmi.board.vendor: Acer
dmi.chassis.type: 3
dmi.chassis.vendor: Acer
dmi.modalias: 
dmi:bvnAMI:bvrP01-A3:bd08/10/2009:svnAcer:pnAspireX3300:pvr:rvnAcer:rnWMCP78M:rvr:cvnAcer:ct3:cvr:
dmi.product.name: Aspire X3300
dmi.sys.vendor: Acer
version.compiz: compiz 1:0.9.7.8-0ubuntu1
version.ia32-libs: ia32-libs N/A
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.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu11
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 
1:0.0.16+git20111201+b5534a1-1build2

** Affects: xserver-xorg-video-nouveau (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug compiz-0.9 quantal reproducible running-unity ubuntu

-- 
You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to xserver-xorg-video-nouveau in Ubuntu.
https://bugs.launchpad.net/bugs/999109

Title:
  complete freeze of Ubuntu after some time

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-nouveau/+bug/999109/+subscriptions

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