Xorg displays incorrect graphics after resume from suspend

[Przemek K.]

Xorg displays incorrect graphics after resume from suspend.
I'm using ATI/AMD fglrx drivers on HP Elitebook 8460p, Ubuntu 12.04.
The problem appears in standard installation and in Quantal LTS enablement pack (kernel + xorg).

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: xorg 1:7.6+12ubuntu2
ProcVersionSignature: Ubuntu 3.5.0-24.37~precise1-generic 3.5.7.4
Uname: Linux 3.5.0-24-generic x86_64
NonfreeKernelModules: fglrx
.tmp.unity.support.test.0:

ApportVersion: 2.0.1-0ubuntu17.1
Architecture: amd64
CheckboxSubmission: e33f3becd9313923bf34aa9626bae3f2
CheckboxSystem: b845c366ea09c60efa3a45c1b5b21525
CompizPlugins: [core,bailer,detection,composite,opengl,compiztoolbox,decor,grid,move,vpswitch,resize,mousepoll,place,imgpng,snap,unitymtgrabhandles,wall,gnomecompat,regex,session,animation,expo,fade,workarounds,ezoom,scale,unityshell]
CompositorRunning: compiz
Date: Thu Feb 21 14:59:02 2013
DistUpgraded: 2012-07-03 19:44:41,464 DEBUG enabling apt cron job
DistroCodename: precise
DistroVariant: ubuntu
DkmsStatus:
 fglrx-updates, 9.000, 3.2.0-37-generic, x86_64: installed
 fglrx-updates, 9.000, 3.2.0-38-generic, x86_64: installed
 fglrx-updates, 9.000, 3.5.0-24-generic, x86_64: installed
ExtraDebuggingInterest: Yes,
GraphicsCard:
 Advanced Micro Devices [AMD] nee ATI Seymour [Radeon HD 6400M Series] [1002:6760] (prog-if 00 [VGA controller])
   Subsystem: Hewlett-Packard Company Device [103c:161e]
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
JockeyStatus:
 xorg:fglrx_experimental_9 - ATI/AMD proprietary FGLRX graphics driver (**experimental** beta) (Własnościowy, Wyłączony, Nieużywany)
 xorg:fglrx_updates - Własnościowy sterownik FGLRX kart graficznych ATI/AMD (aktualizacje wydania) (Własnościowy, Włączony, Nieużywany)
MachineType: Hewlett-Packard HP EliteBook 8460p
MarkForUpload: True
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-24-generic root=UUID=12053e9d-7ecd-4df5-a84d-4346c998c3c6 ro quiet splash radeon.audio=1 vt.handoff=7
SourcePackage: xorg
UpgradeStatus: Upgraded to precise on 2012-07-03 (232 days ago)
dmi.bios.date: 01/04/2013
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 68SCF Ver. F.29
dmi.board.name: 161C
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 97.4C
dmi.chassis.asset.tag: CZC1468Q0H
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvr68SCFVer.F.29:bd01/04/2013:svnHewlett-Packard:pnHPEliteBook8460p:pvrA0001D02:rvnHewlett-Packard:rn161C:rvrKBCVersion97.4C:cvnHewlett-Packard:ct10:cvr:
dmi.product.name: HP EliteBook 8460p
dmi.product.version: A0001D02
dmi.sys.vendor: Hewlett-Packard
version.compiz: compiz 1:0.9.7.12-0ubuntu1
version.fglrx-installer: fglrx-installer N/A
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.39-0ubuntu0.1
version.libgl1-mesa-dri: libgl1-mesa-dri N/A
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core N/A
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A
version.xserver-xorg-video-intel: xserver-xorg-video-intel N/A
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A

[Przemek K. (azrael)]

Here's a photo of this display error.
This graphics problem is gone after I restart the X server, but that defeats the purpose of suspend/resume (keeping your apps running).

[Launchpad Janitor (janitor)]

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

[2GooD (david+launchpad)]

As a manual workaround it is possible to change the screen resolution back and forth between two resolutions after resume.