*** This bug is a duplicate of bug 906231 ***
    https://bugs.launchpad.net/bugs/906231

Thank you for taking the time to report this bug and helping to make
Ubuntu better. This particular bug has already been reported and is a
duplicate of bug 906231, so it is being marked as such. Please look at
the other bug report to see if there is any missing information that you
can provide, or to see if there is a workaround for the bug.
Additionally, any further discussion regarding the bug should occur in
the other report. Feel free to continue to report any other bugs you may
find.


** This bug has been marked a duplicate of bug 906231
   Unity rendered behind windows

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https://bugs.launchpad.net/bugs/974393

Title:
  Unity behind windows (Z-Index/Z-Order problem)

Status in Unity:
  Confirmed
Status in “unity” package in Ubuntu:
  Confirmed

Bug description:
  After Login, there sometimes is a problem with Unity (= Dash +
  Launcher + HUD), where Unity appears to have the false
  Z-Order/Z-Index.

  In this cases i can't realy access Unity, with maximized programs.
  Sometimes normal (=not maximized) windows appear in front of the Dash
  or Launcher (see the screenshot).

  This typically is just after the Login. After i somehow fixed it
  (clicking Workspace-Switcher or pinning a window to the Front), the
  problem stays fixed for this (X-Server-) session.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: unity 5.8.0-0ubuntu2
  ProcVersionSignature: Ubuntu 3.2.0-22.35-generic 3.2.14
  Uname: Linux 3.2.0-22-generic x86_64
  NonfreeKernelModules: wl
  .tmp.unity.support.test.0:
   
  ApportVersion: 2.0-0ubuntu4
  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
  Date: Thu Apr  5 17:35:39 2012
  DistUpgraded: 2012-03-02 09:05:17,265 DEBUG enabling apt cron job
  DistroCodename: precise
  DistroVariant: ubuntu
  EcryptfsInUse: Yes
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20110921.2)
  MachineType: Hewlett-Packard HP TouchSmart tm2 Notebook PC
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-22-generic 
root=UUID=2e9be59f-1f91-4313-bfac-3babbffc5c00 ro quiet splash vt.handoff=7
  SourcePackage: unity
  UpgradeStatus: Upgraded to precise on 2012-03-02 (34 days ago)
  dmi.bios.date: 07/30/2010
  dmi.bios.vendor: Insyde
  dmi.bios.version: F.12
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: 1486
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: 83.1A
  dmi.chassis.asset.tag: CNU0250216
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.chassis.version: Chassis Version
  dmi.modalias: 
dmi:bvnInsyde:bvrF.12:bd07/30/2010:svnHewlett-Packard:pnHPTouchSmarttm2NotebookPC:pvr0489200000252A20001220000:rvnHewlett-Packard:rn1486:rvr83.1A:cvnHewlett-Packard:ct10:cvrChassisVersion:
  dmi.product.name: HP TouchSmart tm2 Notebook PC
  dmi.product.version: 0489200000252A20001220000
  dmi.sys.vendor: Hewlett-Packard
  version.compiz: compiz 1:0.9.7.4-0ubuntu1
  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

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