workspace-switch leaves window artefact on desktop

[Sam_]

Open gedit. Move gedit window vertical to lower workspace with: ctrl+shift+alt+arrow-down
Result: it leaves an artefact from window on top of the current workspace.
To let the artefact disappear proceed any action on another workspace, e.g. move an url in firefox to bookmarks, click on a terminal window and type something or make a screenshot. Sometimes only switching to another workspace helps.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: unity 4.24.0-0ubuntu3
ProcVersionSignature: Ubuntu 3.2.0-8.14-generic 3.2.0
Uname: Linux 3.2.0-8-generic x86_64
NonfreeKernelModules: wl
.tmp.unity.support.test.0:

ApportVersion: 1.90-0ubuntu1
Architecture: amd64
CompizPlugins: [core,bailer,detection,composite,opengl,decor,obs,grid,gnomecompat,vpswitch,mousepoll,wall,compiztoolbox,move,resize,place,imgpng,snap,regex,animation,expo,session,screenshot,unitymtgrabhandles,ezoom,fade,winrules,workarounds,scale,unityshell]
CompositorRunning: compiz
Date: Sun Jan 8 03:00:11 2012
DistUpgraded: Fresh install
DistroCodename: precise
DistroVariant: ubuntu
DkmsStatus:
 bcmwl, 5.100.82.38+bdcom, 3.2.0-5-generic, x86_64: installed
 bcmwl, 5.100.82.38+bdcom, 3.2.0-6-generic, x86_64: installed
 bcmwl, 5.100.82.38+bdcom, 3.2.0-7-generic, x86_64: installed
 bcmwl, 5.100.82.38+bdcom, 3.2.0-8-generic, x86_64: installed
GraphicsCard:
 ATI Technologies Inc RS880M [Mobility Radeon HD 4200 Series] [1002:9712] (prog-if 00 [VGA controller])
   Subsystem: Hewlett-Packard Company Device [103c:1475]
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20111129.1)
MachineType: Hewlett-Packard HP 625
ProcEnviron:
 PATH=(custom, no user)
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-8-generic root=UUID=bab9ac13-843a-4289-a0f2-b254b2dda7d3 ro
SourcePackage: unity
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/07/2010
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 68DVA Ver. F.06
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 1475
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 72.0E
dmi.chassis.asset.tag: CNU1080QP1
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvr68DVAVer.F.06:bd12/07/2010:svnHewlett-Packard:pnHP625:pvr:rvnHewlett-Packard:rn1475:rvrKBCVersion72.0E:cvnHewlett-Packard:ct10:cvr:
dmi.product.name: HP 625
dmi.sys.vendor: Hewlett-Packard
version.compiz: compiz 1:0.9.6+bzr20110929-0ubuntu8
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.29-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 7.11-0ubuntu4
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 7.11-0ubuntu4
version.xserver-xorg-core: xserver-xorg-core 2:1.10.4-1ubuntu6
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 2:2.15.901-1ubuntu4
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20111201+b5534a1-1

[Sam_ (and-sam)]

With unity 5.0 the issue is gone. Thank you.

[Marii Dan Alexandru (damar-v1-0)]

no, it's not gone, my ubuntu 12.04 still does that

[Daniel van Vugt (vanvugt)]

Marii, could you please provide a screenshot and/or video?

[Marii Dan Alexandru (damar-v1-0)]

here's a video recording of my desktop while changing workspaces. The artefact shows even when I use the plain workspace changer instead of the cube.

[Daniel van Vugt (vanvugt)]

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 865006, 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.