** Description changed:

+ SRU Justification:
+ 
+ Impact: 
+ Users with an Intel GMA X3000 graphics card experience display corruption 
when using Precise. This occurs when there is a resolution change.
+ 
+ Fix:
+ Commit c7bd4c25650704d4d065eb4ce2a122d2a80ce804 fixes this issue, and is 
currently in Quantal. Cherry-picking this patch causes the display to work 
properly even after extensive resolution changes.
+ 
+ Testcase:
+ Change resolution repeatedly using xrandr on a computer with the Intel GMA 
X3000 graphics card. Check for display corruption.
+ 
+ --
+ 
  Hi,
  
  changing the display resolution or refresh rate (the latter only with
  'xrandr') causes irreversible screen crash. The screen is running,
  flashing, and I can't able to follow anything in this rush. Hard reset
  helps.
  
  My experiences with Ubuntu 10.10 and 11.10 are good. Both systems can
  handle display resolution changes immaculately.
  
  Configuration:
  Ubuntu 12.04 beta 1
  
  Intel® Core 2 Duo E4500
  Intel® G965 / ICH8 Chipset
  Intel® GMA X3000
  
  Samsung SyncMaster 932GW, connected with standard VGA.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: xorg 1:7.6+10ubuntu1
  ProcVersionSignature: Ubuntu 3.2.0-18.28-generic-pae 3.2.9
  Uname: Linux 3.2.0-18-generic-pae i686
  .tmp.unity.support.test.0:
  
  ApportVersion: 1.94-0ubuntu2
  Architecture: i386
  CompizPlugins: 
[core,composite,opengl,compiztoolbox,decor,place,move,session,regex,mousepoll,gnomecompat,imgpng,wall,resize,vpswitch,snap,grid,unitymtgrabhandles,animation,workarounds,expo,ezoom,fade,scale,unityshell]
  CompositorRunning: compiz
  CurrentDmesg: [   31.104017] eth0: no IPv6 routers present
  Date: Wed Mar  7 17:04:08 2012
  DistUpgraded: Log time: 2012-03-07 16:54:15.961752
  DistroCodename: precise
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes, if not too technical
  GraphicsCard:
   Intel Corporation 82G965 Integrated Graphics Controller [8086:29a2] (rev 02) 
(prog-if 00 [VGA controller])
     Subsystem: ASUSTeK Computer Inc. Device [1043:81ea]
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta i386 (20120301)
  MachineType: System manufacturer System Product Name
  ProcEnviron:
   TERM=xterm
   LANG=hu_HU.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-18-generic-pae 
root=UUID=980a6430-fba9-4774-9156-7fe693e94b42 ro quiet splash vt.handoff=7
  SourcePackage: xorg
  UpgradeStatus: Upgraded to precise on 2012-03-07 (0 days ago)
  dmi.bios.date: 05/22/2007
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 0510
  dmi.board.asset.tag: To Be Filled By O.E.M.
  dmi.board.name: P5B-VM
  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.:bvr0510:bd05/22/2007:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP5B-VM:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
  dmi.product.name: System Product Name
  dmi.product.version: System Version
  dmi.sys.vendor: System manufacturer
  version.compiz: compiz 1:0.9.7.0~bzr2995-0ubuntu5
  version.libdrm2: libdrm2 2.4.30-1ubuntu1
  version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.1-0ubuntu2
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.1-0ubuntu2
  version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu4
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 
1:2.6.99.901+git20120126-0ubuntu2
  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
- --- 
+ ---
  .tmp.unity.support.test.0:
-  
+ 
  ApportVersion: 1.94-0ubuntu2
  Architecture: i386
  CompizPlugins: 
[core,composite,opengl,compiztoolbox,decor,place,move,session,regex,mousepoll,gnomecompat,imgpng,wall,resize,vpswitch,snap,grid,unitymtgrabhandles,animation,workarounds,expo,ezoom,fade,scale,unityshell]
  CompositorRunning: compiz
  CurrentDmesg: [   32.160035] eth0: no IPv6 routers present
  DistUpgraded: Log time: 2012-03-07 16:54:15.961752
  DistroCodename: precise
  DistroRelease: Ubuntu 12.04
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes, if not too technical
  GraphicsCard:
-  Intel Corporation 82G965 Integrated Graphics Controller [8086:29a2] (rev 02) 
(prog-if 00 [VGA controller])
-    Subsystem: ASUSTeK Computer Inc. Device [1043:81ea]
+  Intel Corporation 82G965 Integrated Graphics Controller [8086:29a2] (rev 02) 
(prog-if 00 [VGA controller])
+    Subsystem: ASUSTeK Computer Inc. Device [1043:81ea]
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta i386 (20120301)
  MachineType: System manufacturer System Product Name
  Package: xserver-xorg-video-intel 2:2.17.0-1ubuntu4
  PackageArchitecture: i386
  ProcEnviron:
-  TERM=xterm
-  LANG=hu_HU.UTF-8
-  SHELL=/bin/bash
+  TERM=xterm
+  LANG=hu_HU.UTF-8
+  SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-18-generic-pae 
root=UUID=980a6430-fba9-4774-9156-7fe693e94b42 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.2.0-18.28-generic-pae 3.2.9
  Tags:  precise ubuntu regression reproducible compiz-0.9
  Uname: Linux 3.2.0-18-generic-pae i686
  UpgradeStatus: Upgraded to precise on 2012-03-07 (4 days ago)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  dmi.bios.date: 05/22/2007
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 0510
  dmi.board.asset.tag: To Be Filled By O.E.M.
  dmi.board.name: P5B-VM
  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.:bvr0510:bd05/22/2007:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP5B-VM:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
  dmi.product.name: System Product Name
  dmi.product.version: System Version
  dmi.sys.vendor: System manufacturer
  version.compiz: compiz 1:0.9.7.0~bzr2995-0ubuntu5
  version.libdrm2: libdrm2 2.4.30-1ubuntu1
  version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.1-0ubuntu2
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.1-0ubuntu2
  version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu4
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 
1:2.6.99.901+git20120126-0ubuntu2
  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

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https://bugs.launchpad.net/bugs/949130

Title:
  Display corrupts and flashes when changing resolution on GMA X3000

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