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[Launchpad Bug Tracker <1034154@xxxxxxxxxxxxxxxxxx>]

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This issue is reproducible 100% of the time and I recommend trying the
applications Firefox or Chromium to reproduce it. With stock desktop
effects, minimizing and restoring a window causes the bottom of the
titlebar to tear, causing a very noticeable thick white horizontal line
to appear between the titlebar and the window during the transition.

1) The release of Ubuntu you are using, via 'lsb_release -rd' or System -> About Ubuntu
Description:	Ubuntu 12.04 LTS
Release:	12.04

 2) The version of the package you are using, via 'apt-cache policy pkgname' or by checking in Software Center
compiz:
  Installed: 1:0.9.7.8-0ubuntu1.2
  Candidate: 1:0.9.7.8-0ubuntu1.2
  Version table:
 *** 1:0.9.7.8-0ubuntu1.2 0
        500 http://in.archive.ubuntu.com/ubuntu/ precise-updates/main amd64 Packages
        100 /var/lib/dpkg/status
     1:0.9.7.6-0ubuntu1 0
        500 http://in.archive.ubuntu.com/ubuntu/ precise/main amd64 Packages

apt-cache policy xserver-xorg-video-radeon
xserver-xorg-video-radeon:
  Installed: 1:6.14.99~git20111219.aacbd629-0ubuntu2
  Candidate: 1:6.14.99~git20111219.aacbd629-0ubuntu2
  Version table:
 *** 1:6.14.99~git20111219.aacbd629-0ubuntu2 0
        500 http://in.archive.ubuntu.com/ubuntu/ precise/main amd64 Packages
        100 /var/lib/dpkg/status

 3) What you expected to happen
Smooth transitions and No tearing.

 4) What happened instead
Tearing during effects
--- 
.tmp.unity.support.test.0:
 
ApportVersion: 2.0.1-0ubuntu11
Architecture: amd64
CompizPlugins: [core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell]
CompositorRunning: compiz
DistUpgraded: Fresh install
DistroCodename: precise
DistroRelease: Ubuntu 12.04
DistroVariant: ubuntu
DkmsStatus:
 virtualbox, 4.1.12, 3.2.0-23-generic, x86_64: installed
 virtualbox, 4.1.12, 3.2.0-27-generic, x86_64: installed
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
 Advanced Micro Devices [AMD] nee ATI RS880 [Radeon HD 4250] [1002:9715] (prog-if 00 [VGA controller])
   Subsystem: Giga-byte Technology Device [1458:d000]
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
MachineType: Gigabyte Technology Co., Ltd. GA-880GM-D2H
Package: xserver-xorg-video-ati 1:6.14.99~git20111219.aacbd629-0ubuntu2
PackageArchitecture: amd64
ProcEnviron:
 LANGUAGE=en_IN:en
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_IN
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-8-generic root=UUID=f401a899-af2e-4b39-b802-03475e9f7f92 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.5.0-8.8-generic 3.5.0
Tags:  precise running-unity ubuntu compiz-0.9
Uname: Linux 3.5.0-8-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 05/17/2011
dmi.bios.vendor: Award Software International, Inc.
dmi.bios.version: FC
dmi.board.name: GA-880GM-D2H
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: x.x
dmi.chassis.type: 3
dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrFC:bd05/17/2011:svnGigabyteTechnologyCo.,Ltd.:pnGA-880GM-D2H:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnGA-880GM-D2H:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr:
dmi.product.name: GA-880GM-D2H
dmi.sys.vendor: Gigabyte Technology Co., Ltd.
version.compiz: compiz 1:0.9.7.8-0ubuntu1.2
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.32-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.2-0ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.2-0ubuntu3
version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu10
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu1
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

** Affects: compiz (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: 4250 apport-collected compiz compiz-0.9 precise radeon rs880 running-unity ubuntu
-- 
Titlebar tears on stock desktop effects - ATI RS880 [Radeon HD 4250]
https://bugs.launchpad.net/bugs/1034154
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