** Description changed:

  When the error comes up, the computer is stalling and Xorg uses 50-70% of CPU!
  To reproduce:
- 1) Open VLC media player.
- 2) Click "Show playlist" button.
+ 1) Open / Close Dash.
+ 2) Open VLC media player.
+ 3) Click "Show playlist" button.
  Now the window starts to flicker.
  
  Attached is a video:
  
  ProblemType: Bug
  DistroRelease: Ubuntu 12.10
  Package: xorg 1:7.7+1ubuntu3
  ProcVersionSignature: Ubuntu 3.5.0-13.14-generic 3.5.3
  Uname: Linux 3.5.0-13-generic x86_64
  ApportVersion: 2.5.1-0ubuntu4
  Architecture: amd64
  Date: Tue Sep  4 12:45:47 2012
  DistUpgraded: Fresh install
  DistroCodename: quantal
  DistroVariant: ubuntu
  GraphicsCard:
-  Advanced Micro Devices [AMD] nee ATI RV350 AS [Radeon 9550] [1002:4153] 
(prog-if 00 [VGA controller])
-    Subsystem: PC Partner Limited Device [174b:0200]
-    Subsystem: PC Partner Limited Device [174b:0201]
+  Advanced Micro Devices [AMD] nee ATI RV350 AS [Radeon 9550] [1002:4153] 
(prog-if 00 [VGA controller])
+    Subsystem: PC Partner Limited Device [174b:0200]
+    Subsystem: PC Partner Limited Device [174b:0201]
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120724.2)
  Lsusb:
-  Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
-  Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
-  Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
+  Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
+  Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
+  Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: ASUSTek Computer Inc. K8N
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-13-generic 
root=UUID=9ecbf9c4-5908-44bc-b329-494d0acd6b58 ro quiet splash vt.handoff=7
  SourcePackage: xorg
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 02/16/2006
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 1011.005
  dmi.board.name: 'K8N'
  dmi.board.vendor: ASUSTeK Computer INC.
  dmi.board.version: Rev 1.xx
  dmi.chassis.asset.tag: Asset-1234567890
  dmi.chassis.type: 3
  dmi.chassis.vendor: Chassis Manufacture
  dmi.chassis.version: Chassis Version
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvr1011.005:bd02/16/2006:svnASUSTekComputerInc.:pnK8N:pvrSystemVersion:rvnASUSTeKComputerINC.:rn'K8N':rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
  dmi.product.name: K8N
  dmi.product.version: System Version
  dmi.sys.vendor: ASUSTek Computer Inc.
  version.compiz: compiz 1:0.9.8.0-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.38-0ubuntu2
  version.libgl1-mesa-dri: libgl1-mesa-dri 9.0~git20120821.c1114c61-0ubuntu2
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 9.0~git20120821.c1114c61-0ubuntu2
  version.xserver-xorg-core: xserver-xorg-core 2:1.12.99.905-0ubuntu3
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu1
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 
1:6.99.99~git20120713.6ef1ad6a-0ubuntu1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.20.3-0ubuntu1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 
1:1.0.1-4~ubuntu1

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https://bugs.launchpad.net/bugs/1045796

Title:
  VLC window and launcher flickers!

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