Florian Achleitner, this bug was reported a while ago and there hasn't
been any activity in it recently. We were wondering if this is still an
issue? If so, could you please test for this with the latest development
release of Ubuntu? ISO images are available from
http://cdimage.ubuntu.com/daily-live/current/ .

If it remains an issue, could you please run the following command in
the development release from a Terminal
(Applications->Accessories->Terminal), as it will automatically gather
and attach updated debug information to this report:

apport-collect -p xserver-xorg-video-ati REPLACE-WITH-BUG-NUMBER

Please note, given that the information from the prior release is
already available, doing this on a release prior to the development one
would not be helpful.

Thank you for your understanding.

Helpful bug reporting tips:
https://wiki.ubuntu.com/ReportingBugs

** Changed in: xserver-xorg-video-ati (Ubuntu)
   Importance: Undecided => Low

** Changed in: xserver-xorg-video-ati (Ubuntu)
       Status: Confirmed => Incomplete

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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to xserver-xorg-video-ati in Ubuntu.
https://bugs.launchpad.net/bugs/583676

Title:
  Resume with two displays gives scrambled pixels on only one display

Status in “xserver-xorg-video-ati” package in Ubuntu:
  Incomplete

Bug description:
  Binary package hint: xserver-xorg-video-ati

  I use two monitor connected via DVI. After suspend to ram and resume,
  the picture on only one display gets scrambled and unusable.

  Some Facts:
  - Everthing runs as expected, but the left display show a picture looking 
like every fourth pixel is displayed, and the ones in between have the values 
of their neighbor. The picture is updated and flickerfree. I can attach a foto 
if it helps..

  - Taking a screenshot gives a normal picture.

  - Disabling KMS by passing radeon.modeset=0 to the kernel solves the
  problem. I attach 2 dmesg outputs of the resume sequence. Note that
  with modeset=0 "[drm] Resetting GPU" is output, while with KMS it is
  not.

  - It occurs only if using the 2 monitors in "big desktop" mode.

  - logging out an back in solves it

  - fglrx (i used it until lucid) had the same issue. It was silently
  fixed around version 10.2.

  - Hibernation doesn't work too. It ends up in gdm after resuming.
  Maybe X crashes, but thats another story.

  ProblemType: Bug
  DistroRelease: Ubuntu 10.04
  Package: xserver-xorg-video-ati 1:6.13.0-1ubuntu5
  ProcVersionSignature: Ubuntu 2.6.32-22.33-generic 2.6.32.11+drm33.2
  Uname: Linux 2.6.32-22-generic x86_64
  Architecture: amd64
  Date: Fri May 21 09:40:46 2010
  DkmsStatus:
   
  MachineType: Dell Inc. Dell XPS420
  ProcCmdLine: root=/dev/mapper/lvm_vg-root ro quiet splash
  ProcEnviron:
   PATH=(custom, user)
   LANG=en_US.utf8
   SHELL=/bin/bash
  SourcePackage: xserver-xorg-video-ati
  dmi.bios.date: 06/23/2008
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A06
  dmi.board.name: 0TP406
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 7
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvrA06:bd06/23/2008:svnDellInc.:pnDellXPS420:pvr:rvnDellInc.:rn0TP406:rvrA01:cvnDellInc.:ct7:cvr:
  dmi.product.name: Dell XPS420
  dmi.sys.vendor: Dell Inc.
  system:
   distro:             Ubuntu
   codename:           lucid
   architecture:       x86_64
   kernel:             2.6.32-22-generic

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