Further corruption today with lockup
occurs when  opening unity search button at to of unity bar
Radio tray was playing at the time and started to stutter
Trouble is definitely repeatable.
 Did manage to close unity search by waiting
attached screenshot

** Attachment added: "screenshot of screen corruption 2014-03-05"
   
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1287380/+attachment/4008730/+files/Screenshot%20from%202014-03-05%2011%3A44%3A49.png

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https://bugs.launchpad.net/bugs/1287380

Title:
  Screen  corruption Unity search

Status in “xorg” package in Ubuntu:
  New

Bug description:
  Often when using unity search tool (top button) a rapid page 
painting/corruption occurs often resulting in a lockup requiring reboot.
  Not sure exactly how it originates. but the repainting can go on for some 
time with frozen mouse and frozen keyboard(cannot call for term) ctrl+alt+T not 
usable for term and reboot.
   CPU seems to be frozen. occasionaly have got up sys mon and CPU load stuck 
at 100%.
  got a screen shot (attached)

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: xorg 1:7.7+1ubuntu6
  ProcVersionSignature: Ubuntu 3.11.0-17.31-generic 3.11.10.3
  Uname: Linux 3.11.0-17-generic i686
  .tmp.unity.support.test.0:
   
  ApportVersion: 2.12.5-0ubuntu2.2
  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
  Date: Mon Mar  3 14:24:36 2014
  DistUpgraded: 2014-02-15 22:23:42,539 DEBUG enabling apt cron job
  DistroCodename: saucy
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes, if not too technical
  GraphicsCard:
   NVIDIA Corporation NV41M [GeForce Go 6800] [10de:00c8] (rev a2) (prog-if 00 
[VGA controller])
     Subsystem: Dell Device [1028:019c]
  InstallationDate: Installed on 2014-02-16 (15 days ago)
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release i386 (20121017.2)
  MachineType: Dell Inc. Inspiron 9300
  MarkForUpload: True
  PccardctlIdent:
   Socket 0:
     no product info available
  PccardctlStatus:
   Socket 0:
     no card
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-17-generic 
root=UUID=d84f067c-19fd-4c34-9442-f95d63e6d6b9 ro quiet splash vt.handoff=7
  SourcePackage: xorg
  Symptom: display
  UpgradeStatus: Upgraded to saucy on 2014-02-16 (15 days ago)
  dmi.bios.date: 06/21/2005
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A04
  dmi.board.name: 0C5668
  dmi.board.vendor: Dell Inc.
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvrA04:bd06/21/2005:svnDellInc.:pnInspiron9300:pvr:rvnDellInc.:rn0C5668:rvr:cvnDellInc.:ct8:cvr:
  dmi.product.name: Inspiron 9300
  dmi.sys.vendor: Dell Inc.
  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 2:1.14.5-1ubuntu2~saucy1
  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 
2:2.99.904-0ubuntu2.1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 
1:1.0.9-2ubuntu1

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