Screen corruption on ATI Radeon with Unity

[Artem Popov]

Binary package hint: compiz

I get weird screen corruption in various places of my desktop on ATI Radeon (RS690) with Unity. The video card is:
01:05.0 VGA compatible controller: ATI Technologies Inc RS690M [Radeon X1200 Series]

Please see the attached screenshot. The bug mostly affects top panel and launcher bar. Switching the laptop to Radeon HD2400 (R600) fixes the issue, but I'd like to work with an older video card as well.

I had no problems with compiz+RS690 under previous versions of Ubuntu .

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: xorg 1:7.5+6ubuntu3b1
ProcVersionSignature: Ubuntu 2.6.37-9.22~ppa1-lowlatency 2.6.37-rc5
Uname: Linux 2.6.37-9-lowlatency i686
Architecture: i386
DRM.card0.DVI.D.1:
 status: disconnected
 enabled: disabled
 dpms: On
 modes:
 edid-base64:
DRM.card0.LVDS.1:
 status: connected
 enabled: enabled
 dpms: On
 modes: 1280x800 1280x720 1152x768 1024x768 800x600 848x480 720x480 640x480
 edid-base64: AP///////wAyDADjAAAAAAAQAQOAIRV4CrNAmVlTjSclUFQAAAABAQEBAQEBAQEBAQEBAQEBvBsAoFAgFzAwIDYAS88QAAAZAAAAAAAAAAAAAAAAAAAAAAAAAAAA/gBMR1BoaWxpcHNMQ0QKAAAA/gBMUDE1NFdYNC1UTEMzADw=
DRM.card0.VGA.1:
 status: disconnected
 enabled: disabled
 dpms: On
 modes:
 edid-base64:
Date: Fri Dec 17 17:52:50 2010
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha i386 (20101202)
MachineType: ASUSTeK Computer Inc. F3Ka
ProcEnviron:
 LANGUAGE=ru_RU:ru:en_GB:en
 LANG=ru_RU.UTF-8
 LC_MESSAGES=ru_RU.utf8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.37-9-lowlatency root=UUID=211f3ecd-7da7-470a-a689-fb38add4bfc8 ro quiet splash
SourcePackage: xorg
Symptom: display
dmi.bios.date: 07/07/2008
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 212
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: F3Ka
dmi.board.vendor: ASUSTeK Computer Inc.
dmi.board.version: 1.0
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK Computer Inc.
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr212:bd07/07/2008:svnASUSTeKComputerInc.:pnF3Ka:pvr1.0:rvnASUSTeKComputerInc.:rnF3Ka:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr:
dmi.product.name: F3Ka
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK Computer Inc.
glxinfo: Error: [Errno 2] Нет такого файла или каталога
system:
 distro: Ubuntu
 codename: natty
 architecture: i686
 kernel: 2.6.37-9-lowlatency

[John S. Gruber (jsjgruber)]

Thanks for reporting this bug. I believe this is a duplicate of launchpad bug #681915 and so I'll mark it that way.