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[WarriorIng64 <881003@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

This is an Ubuntu 11.10 64-bit machine upgraded from Ubuntu 11.04. When
switching between two windows on the same workspace under Unity (not
sure if it does the same under GNOME Shell yet), either through clicking
or using Alt+Tab, windows flicker during the switch. This issue did not
exist under 11.04, and is quite distracting.

Attached is a screen recording illustrating the issue. (Please ignore
the tearing, that is a separate issue filed as bug #713594.)

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: xorg 1:7.6+7ubuntu7
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
Uname: Linux 3.0.0-12-generic x86_64
.tmp.unity.support.test.0:
 
ApportVersion: 1.23-0ubuntu3
Architecture: amd64
CompizPlugins: [core,bailer,detection,composite,opengl,compiztoolbox,decor,snap,resize,place,gnomecompat,grid,session,regex,move,vpswitch,imgpng,mousepoll,unitymtgrabhandles,wall,animation,expo,ezoom,fade,workarounds,scale,unityshell]
CompositorRunning: compiz
Date: Mon Oct 24 13:45:21 2011
DistUpgraded: Log time: 2011-10-15 00:25:12.329972
DistroCodename: oneiric
DistroVariant: ubuntu
EcryptfsInUse: Yes
ExtraDebuggingInterest: Yes, whatever it takes to get this fixed in Ubuntu
GraphicsCard:
 Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07) (prog-if 00 [VGA controller])
   Subsystem: Toshiba America Info Systems Device [1179:ff10]
   Subsystem: Toshiba America Info Systems Device [1179:ff10]
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
MachineType: TOSHIBA Satellite A505
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-12-generic root=UUID=46c14927-5e46-44ff-9429-1f0193e31911 ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: Upgraded to oneiric on 2011-10-15 (9 days ago)
dmi.bios.date: 05/25/2010
dmi.bios.vendor: INSYDE
dmi.bios.version: 1.80
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: Portable PC
dmi.board.vendor: TOSHIBA
dmi.board.version: Base Board Version
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: Chassis Manufacturer
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnINSYDE:bvr1.80:bd05/25/2010:svnTOSHIBA:pnSatelliteA505:pvrPSAP0U-007007:rvnTOSHIBA:rnPortablePC:rvrBaseBoardVersion:cvnChassisManufacturer:ct10:cvrChassisVersion:
dmi.product.name: Satellite A505
dmi.product.version: PSAP0U-007007
dmi.sys.vendor: TOSHIBA
version.compiz: compiz 1:0.9.6+bzr20110929-0ubuntu5
version.ia32-libs: ia32-libs N/A
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.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
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 compiz-0.9 oneiric running-unity ubuntu

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https://bugs.launchpad.net/bugs/881003

Title:
  Windows on same workspace flicker when switched between

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