"Ghost" image of window behind panel remains visible after the window is moved out of the way

[Ian Santopietro]

Running Ubuntu Precise 64-bit, up to date as of 13:30 on 2/28/2012.

With panel transparency set, if a window moves behind the panel, the window is visible (blurred) "through" the panel.

What I expect to happen: When I move the window away, I will see the desktop through the panel; the window will not show through it.

What actually happens: When I move the window away, the portion of the window that was visible through the panel remains visible, even though the window is no longer under the panel. Screen shots attached.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: unity 5.4.0+bzr2035ubuntu0+654
ProcVersionSignature: Ubuntu 3.2.0-17.27-generic 3.2.6
Uname: Linux 3.2.0-17-generic x86_64
.tmp.unity.support.test.0:

ApportVersion: 1.93-0ubuntu2
Architecture: amd64
CompizPlugins: [core,composite,opengl,decor,mousepoll,vpswitch,regex,animation,snap,expo,move,compiztoolbox,place,grid,imgpng,gnomecompat,wall,ezoom,workarounds,resize,fade,unitymtgrabhandles,scale,session,unityshell]
CompositorRunning: compiz
CrashDB: unity
Date: Tue Feb 28 13:39:46 2012
DistUpgraded: Fresh install
DistroCodename: precise
DistroVariant: ubuntu
DkmsStatus:
 virtualbox, 4.1.8, 3.2.0-16-generic, x86_64: installed
 virtualbox, 4.1.8, 3.2.0-17-generic, x86_64: installed
GraphicsCard:
 Advanced Micro Devices [AMD] nee ATI RV770 [Radeon HD 4870] [1002:9440] (prog-if 00 [VGA controller])
   Subsystem: Giga-byte Technology Device [1458:21bc]
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20120201.1)
MachineType: System76, Inc. Wild Dog Performance
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-17-generic root=UUID=3c78a19a-e7a1-4ecc-a8f2-2dfaee764fda ro quiet splash vt.handoff=7
SourcePackage: unity
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 01/21/2010
dmi.bios.vendor: Intel Corp.
dmi.bios.version: SGP4510H.86A.0125.2010.0121.1927
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: DP45SG
dmi.board.vendor: Intel Corporation
dmi.board.version: AAE27733-403
dmi.chassis.type: 3
dmi.chassis.vendor: System76
dmi.chassis.version: wilp6
dmi.modalias: dmi:bvnIntelCorp.:bvrSGP4510H.86A.0125.2010.0121.1927:bd01/21/2010:svnSystem76,Inc.:pnWildDogPerformance:pvrwilp6:rvnIntelCorporation:rnDP45SG:rvrAAE27733-403:cvnSystem76:ct3:cvrwilp6:
dmi.product.name: Wild Dog Performance
dmi.product.version: wilp6
dmi.sys.vendor: System76, Inc.
version.compiz: compiz 1:0.9.7.0~bzr3025-0ubuntu1~ppa1
version.ia32-libs: ia32-libs N/A
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

[Omer Akram (om26er)]

duplicate check please? also its not a default feature of unity to warrant a release milestone. duplicate bug 865006