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[The Bright Side <899669@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Steps to Reproduce:
1. Boot Ubuntu 11.10 64-bit into Gnome Shell
2. Observe black flashing squares near Activities button

Observed results:
I'm on 11.10 Gnome Shell, and about once a day, there's a screen corruption around the "Activities" button right after boot: a random group of black squares flashing on and off. 

If I continue working, the corruption will get worse, and the top of the
screen fills with garbage spreading from left to right. See attached
screenshots.

Eventually, Ubuntu crashes to the login screen.

Only occurs right after login. If it doesn't happen then, it never
happens, so right now, when I see it, I log out and back in and I'm
good.


Notes:
My PC is a desktop. Hardware:
CPU: AMD Phenom II X6 1090T Six Core Processor AM3 3.2GHZ
Graphics: Gigabyte GeForce GTX 460 1GB Fermi 760MHZ

Software:
Ubuntu 11.10 64-bit
Gnome Shell
Nvidia 290.10 drivers

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: xorg 1:7.6+7ubuntu7
ProcVersionSignature: Ubuntu 3.0.0-13.22-generic 3.0.6
Uname: Linux 3.0.0-13-generic x86_64
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_64 Kernel Module  290.10  Wed Nov 16 17:39:29 PST 2011
 GCC version:  gcc version 4.6.1 (Ubuntu/Linaro 4.6.1-9ubuntu3)
.tmp.unity.support.test.0:
 
ApportVersion: 1.23-0ubuntu4
Architecture: amd64
CompizPlugins: [core,bailer,detection,composite,opengl,compiztoolbox,decor,gnomecompat,move,water,regex,vpswitch,imgpng,place,mousepoll,grid,animation,resize,unitymtgrabhandles,wall,wobbly,session,workarounds,expo,fade,scale,ezoom,unityshell]
CompositorRunning: None
Date: Sat Dec  3 10:41:20 2011
DistUpgraded: Fresh install
DistroCodename: oneiric
DistroVariant: ubuntu
DkmsStatus: nvidia-current, 290.10, 3.0.0-13-generic, x86_64: installed
DpkgLog:
 
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
 nVidia Corporation GF104 [GeForce GTX 460] [10de:0e22] (rev a1) (prog-if 00 [VGA controller])
   Subsystem: Giga-byte Technology Device [1458:34fc]
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
JockeyStatus:
 xorg:nvidia_current - NVIDIA accelerated graphics driver (Proprietary, Enabled, In use)
 xorg:nvidia_current_updates - NVIDIA accelerated graphics driver (post-release updates) (Proprietary, Disabled, Not in use)
MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-13-generic root=UUID=e481fddc-5155-4fdf-b0fb-ef8e9a2c1e31 ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
XorgConf:
 Section "Device"
 	Identifier	"Default Device"
 	Option	"NoLogo"	"True"
 EndSection
dmi.bios.date: 05/20/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 080015
dmi.board.name: JW-A870T-UC3
dmi.board.vendor: JW Technology
dmi.board.version: V1.0
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr080015:bd05/20/2010:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnJWTechnology:rnJW-A870T-UC3:rvrV1.0:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: To Be Filled By O.E.M.
dmi.product.version: To Be Filled By O.E.M.
dmi.sys.vendor: To Be Filled By O.E.M.
version.compiz: compiz 1:0.9.6+bzr20110929-0ubuntu6
version.ia32-libs: ia32-libs 20090808ubuntu26
version.libdrm2: libdrm2 2.4.26-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 7.11-0ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 7.11-0ubuntu3
version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
version.xserver-xorg: xserver-xorg 1:7.6+7ubuntu7
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 2:2.15.901-1ubuntu2.1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110411+8378443-1

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


** Tags: amd64 apport-bug corruption oneiric patch ubuntu

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https://bugs.launchpad.net/bugs/899669

Title:
  Screen Corruption and crash after Gnome Shell login

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