shadows remain after dialog boxes close

[Ben Howard]

On dual-screen setups, shadows remain in Compiz after the dialog has closed. The only way to fix this problem is to disable shadows althoughter.

See attached screenshot.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: compiz 1:0.9.7.0~bzr2995-0ubuntu2
ProcVersionSignature: Ubuntu 3.2.0-16.25-generic 3.2.6
Uname: Linux 3.2.0-16-generic x86_64
NonfreeKernelModules: nvidia
.proc.driver.nvidia.gpus.0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0'
.proc.driver.nvidia.registry: Binary: ""
.proc.driver.nvidia.version:
 NVRM version: NVIDIA UNIX x86_64 Kernel Module 290.10 Wed Nov 16 17:39:29 PST 2011
 GCC version: gcc version 4.6.2 (Ubuntu/Linaro 4.6.2-14ubuntu2)
.tmp.unity.support.test.0:

ApportVersion: 1.91-0ubuntu1
Architecture: amd64
CompizPlugins: [core,composite,opengl,compiztoolbox,decor,place,grid,move,session,resize,mousepoll,snap,imgpng,regex,gnomecompat,vpswitch,wall,animation,fade,scale,workarounds,expo,ezoom,switcher,unityshell,ring]
CompositorRunning: compiz
Date: Thu Feb 16 15:16:47 2012
DistUpgraded: Log time: 2012-01-09 09:59:36.100272
DistroCodename: precise
DistroVariant: ubuntu
EcryptfsInUse: Yes
GraphicsCard:
 NVIDIA Corporation GF108 [Quadro 1000M] [10de:0dfa] (rev a1) (prog-if 00 [VGA controller])
   Subsystem: Lenovo Device [17aa:21cf]
JockeyStatus:
 xorg:nvidia_current - NVIDIA accelerated graphics driver (Proprietary, Enabled, In use)
 xorg:nvidia_current_updates - NVIDIA accelerated graphics driver (post-release updates) (Proprietary, Disabled, Not in use)
MachineType: LENOVO 4270CTO
PackageArchitecture: all
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-16-generic root=UUID=d7a38d7a-5ea8-4ea7-8e61-c2f922171fe1 ro max_loop=254 nomodeset insmod=nvidia-current-updates
SourcePackage: compiz
UpgradeStatus: Upgraded to precise on 2012-01-09 (38 days ago)
dmi.bios.date: 08/16/2011
dmi.bios.vendor: LENOVO
dmi.bios.version: 8BET50WW (1.30 )
dmi.board.asset.tag: Not Available
dmi.board.name: 4270CTO
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr8BET50WW(1.30):bd08/16/2011:svnLENOVO:pn4270CTO:pvrThinkPadW520:rvnLENOVO:rn4270CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 4270CTO
dmi.product.version: ThinkPad W520
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:0.9.7.0~bzr2995-0ubuntu2
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.30-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 8.0~rc2-0ubuntu5
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 8.0~rc2-0ubuntu5
version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu3
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

[Alan Pope 🍺🐧🐱 🦄 (popey)]

I don't think this is limited to dual screen. My single screen Intel laptop does it.

[Robert Roth (evfool)]

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 #933615, 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.
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