Visual corruption in workspace switcher on secondary monitor

[Kieran Hogg]

As title and screenshot. Always reproducible, not a temporary effect.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: unity 4.12.0-0ubuntu2
ProcVersionSignature: Ubuntu 2.6.38-10.46-generic 2.6.38.7
Uname: Linux 2.6.38-10-generic x86_64
Architecture: amd64
CompizPlugins: [core,bailer,detection,composite,opengl,compiztoolbox,decor,mousepoll,place,session,gnomecompat,snap,ring,resize,regex,vpswitch,grid,move,wall,imgpng,unitymtgrabhandles,animation,expo,workarounds,fade,ezoom,scale,scaleaddon,unityshell]
CompositorRunning: compiz
Date: Sat Sep 3 20:28:21 2011
DistUpgraded: Log time: 2011-08-15 11:54:50.063088
DistroCodename: oneiric
DistroVariant: ubuntu
DkmsStatus:
 vboxhost, 4.0.12, 2.6.38-10-generic, x86_64: installed
 vboxhost, 4.0.12, 3.0.0-8-generic, x86_64: installedError! Could not locate dkms.conf file.
 File: does not exist.

 vboxhost, 4.0.12, 3.0.0-9-generic, x86_64: installed
GraphicsCard:
 ATI Technologies Inc RV730XT [Radeon HD 4670] [1002:9490] (prog-if 00 [VGA controller])
   Subsystem: PC Partner Limited Device [174b:e101]
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Beta amd64 (20100318)
MachineType: System manufacturer System Product Name
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-10-generic root=UUID=1a43c12a-c0f7-4192-945f-028d00054c74 ro quiet splash vt.handoff=7
SourcePackage: unity
UpgradeStatus: Upgraded to oneiric on 2011-08-29 (5 days ago)
dmi.bios.date: 10/14/2009
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0501
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: M4A785TD-V EVO
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev X.0x
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0501:bd10/14/2009:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM4A785TD-VEVO:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
version.compiz: compiz 1:0.9.5.92+bzr2791-0ubuntu1
version.ia32-libs: ia32-libs 20090808ubuntu20
version.libdrm2: libdrm2 2.4.26-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 7.11-0ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 7.11-0ubuntu3
version.xserver-xorg: xserver-xorg 1:7.6+7ubuntu6
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 2:2.15.901-1ubuntu2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110411+8378443-1

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Kieran Hogg (xerosis)]

This seems to be fixed for me now.

[Kieran Hogg (xerosis)]

Oops, spoke too soon.

[Carlos Osorio (carlos-pena)]

I just wanted to add that I also have trouble moving windows in the workspace switcher with this problem.
It feels as if the position I click on the switcher zoom is misplaced from what I see, so I have to move around clicking to hit the right window.

[Pascal Hartig (passy)]

I use TwinView over two monitors and the expo mode or workspace switcher - as unity calls it - is basically unusable for me. This is what I see after pressing Super + S: http://i.imgur.com/3HhK1.jpg