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["Stephen M. Webb" <stephen.webb@xxxxxxxxxxxxx>]

Sounds like a Compiz damage problem.

** Also affects: compiz
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1244225

Title:
  Display is unrefreshed/corrupted when opening/closing/switching
  windows and tabs

Status in Compiz:
  New
Status in “unity” package in Ubuntu:
  New

Bug description:
  When I switch between windows, or switch between tabs in the same
  window, or switch desktops, part or all of the affected windows often
  fail to repaint (or repaint and then revert to "stale" content).
  Unfocusing/refocusing the affected window usually forces it to repaint
  again (but may then leave another window "stale").

  It doesn't seem toolkit-specific (happens with xchat, firefox, chrome,
  skype, gnome-terminal, ...).

  Attached is a screenshot showing an example of corruption after
  switching between two tabs in xchat.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: unity 7.1.2+13.10.20131014.1-0ubuntu1
  ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3
  Uname: Linux 3.11.0-12-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  319.32  Wed Jun 19 15:51:20 PDT 2013
   GCC version:  gcc version 4.8.1 (Ubuntu/Linaro 4.8.1-10ubuntu8)
  .tmp.unity: Error: [Errno 21] Is a directory: '/tmp/unity'
  .tmp.unity.support.test.0:
   
  ApportVersion: 2.12.5-0ubuntu2
  Architecture: amd64
  CompizPlugins: [core,composite,opengl,decor,compiztoolbox,vpswitch,move,gnomecompat,grid,place,regex,imgpng,resize,annotate,mousepoll,wobbly,session,animation,fade,animationaddon,cube,rotate,workarounds,unitymtgrabhandles,cubeaddon,trailfocus,scale,expo,ezoom,unityshell]
  CompositorRunning: compiz
  CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
  CompositorUnredirectFSW: true
  Date: Thu Oct 24 15:15:48 2013
  DistUpgraded: 2013-10-18 10:50:28,943 DEBUG enabling apt cron job
  DistroCodename: saucy
  DistroVariant: ubuntu
  DkmsStatus:
   nvidia-319, 319.32, 3.11.0-12-generic, x86_64: installedError! Could not locate dkms.conf file.
   File:  does not exist.
   
   nvidia-319, 319.32, 3.8.0-31-generic, x86_64: installed
  GraphicsCard:
   NVIDIA Corporation GF108 [GeForce GT 420] [10de:0de2] (rev a1) (prog-if 00 [VGA controller])
     Subsystem: Micro-Star International Co., Ltd. Device [1462:2302]
  InstallationDate: Installed on 2011-05-11 (896 days ago)
  InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
  JockeyStatus:
   kmod:nvidia_319_updates - NVIDIA binary Xorg driver, kernel module and VDPAU library (Proprietary, Disabled, Not in use)
   kmod:nvidia_304 - NVIDIA binary Xorg driver, kernel module and VDPAU library (Proprietary, Disabled, Not in use)
   kmod:nvidia_304_updates - NVIDIA binary Xorg driver, kernel module and VDPAU library (Proprietary, Disabled, Not in use)
   kmod:nvidia_319 - nvidia_319 (Proprietary, Enabled, Not in use)
  MachineType: Dell Inc. XPS 8300
  MarkForUpload: True
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-12-generic root=UUID=0b19268c-a493-49b7-81d6-7249daf74712 ro quiet splash
  SourcePackage: unity
  UpgradeStatus: Upgraded to saucy on 2013-10-18 (6 days ago)
  dmi.bios.date: 02/15/2011
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A03
  dmi.board.name: 0Y2MRG
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 3
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA03:bd02/15/2011:svnDellInc.:pnXPS8300:pvr:rvnDellInc.:rn0Y2MRG:rvrA00:cvnDellInc.:ct3:cvr:
  dmi.product.name: XPS 8300
  dmi.sys.vendor: Dell Inc.
  version.compiz: compiz 1:0.9.10+13.10.20131011-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.46-1
  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.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
  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: Fri Oct 18 10:51:55 2013
  xserver.configfile: /etc/X11/xorg.conf
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   
  xserver.version: 2:1.14.3-3ubuntu2

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