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[Dominik <1389703@xxxxxxxxxxxxxxxxxx>]

Yeah, that doesn't look alike. Do you have this problem also in the
console and on the shutdown screen, or just on the desktop?

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https://bugs.launchpad.net/bugs/1389703

Title:
  [iMac8,1] broken colors after suspend/resume

Status in linux package in Ubuntu:
  Triaged

Bug description:
  OS: ubuntu 14.04 on a iMac 2008
  Problem: after a suspend/resume, the graphics are broken (here there is an image: https://onedrive.live.com/redir?resid=F360DB4014F86298!22188&authkey=!AISDvz3fV20MHKI&v=3&ithint=photo%2cjpg)
  I don't know if is the same problem but when I boot the system I receive this message: 
  radeon 0000:01:00.0: Invalid ROM contents

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-39-generic 3.13.0-39.66
  ProcVersionSignature: Ubuntu 3.13.0-39.66-generic 3.13.11.8
  Uname: Linux 3.13.0-39-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.14.1-0ubuntu3.5
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  lorenzo    1866 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Wed Nov  5 14:41:09 2014
  HibernationDevice: RESUME=UUID=bdd73df9-a862-43bf-8fe9-54336feca239
  InstallationDate: Installed on 2014-09-21 (44 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64+mac (20140417)
  MachineType: Apple Inc. iMac8,1
  ProcFB: 0 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-39-generic.efi.signed root=UUID=ca4df9f7-6b9d-4182-8cc8-4d0988878be2 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-39-generic N/A
   linux-backports-modules-3.13.0-39-generic  N/A
   linux-firmware                             1.127.7
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 02/09/08
  dmi.bios.vendor: Apple Inc.
  dmi.bios.version: IM81.88Z.00C1.B00.0802091538
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: Mac-F227BEC8
  dmi.board.vendor: Apple Inc.
  dmi.board.version: PVT
  dmi.chassis.asset.tag: Asset Tag#
  dmi.chassis.type: 13
  dmi.chassis.vendor: Apple Inc.
  dmi.chassis.version: Mac-F227BEC8
  dmi.modalias: dmi:bvnAppleInc.:bvrIM81.88Z.00C1.B00.0802091538:bd02/09/08:svnAppleInc.:pniMac8,1:pvr1.0:rvnAppleInc.:rnMac-F227BEC8:rvrPVT:cvnAppleInc.:ct13:cvrMac-F227BEC8:
  dmi.product.name: iMac8,1
  dmi.product.version: 1.0
  dmi.sys.vendor: Apple Inc.

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