[Bug 793310] Re: Screen freeze when changing displays

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** Package changed: xorg (Ubuntu) => fglrx-installer (Ubuntu)

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https://bugs.launchpad.net/bugs/793310

Title:
  Screen freeze when changing displays

Status in “fglrx-installer” package in Ubuntu:
  New

Bug description:
  Binary package hint: xorg

  I use a laptop as my primary machine. About 70% of the time it's
  connected to an external monitor. The rest of the time I use it on its
  own.

  I've always had problems switching between the two. Prior to the Natty
  upgrade, if I switched from the monitor to the laptop and then
  unplugged the machine, the display would turn off and I couldn't get
  it back without doing a hard reset.

  Since the Natty upgrade, the problems have gotten worse. The
  plugging/unplugging issue persists (though sometimes I can get the
  screen back by unplugging/replugging a second time).

  But another problem has cropped up. Since upgrading to Natty, when
  switching between displays, the screen will just freeze. I can still
  see everything, sometimes even move my mouse around, but the system
  doesn't respond to any clicking or keyboard strokes. My only option is
  to power down the machine and restart it.

  This happens when switching—I turn one display off and the other one
  on. I can sometimes avoid this issue by turning on both displays at
  the same resolution first, applying the changes, and then going back
  and turning off the second one. But that's not failproof either.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: xorg 1:7.6+4ubuntu3
  ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
  Uname: Linux 2.6.38-8-generic x86_64
  NonfreeKernelModules: fglrx
  Architecture: amd64
  CompizPlugins: [core,bailer,detection,composite,opengl,decor,compiztoolbox,resize,snap,vpswitch,move,mousepoll,grid,gnomecompat,place,regex,wall,session,animation,expo,workarounds,ezoom,staticswitcher,fade,scale,unityshell]
  CompositorRunning: compiz
  Date: Sun Jun  5 19:40:36 2011
  DistUpgraded: Log time: 2011-04-29 15:24:32.349588
  DistroCodename: natty
  DistroVariant: ubuntu
  GraphicsCard:
   ATI Technologies Inc M92 [Mobility Radeon HD 4500 Series] [1002:9553] (prog-if 00 [VGA controller])
     Subsystem: CLEVO/KAPOK Computer Device [1558:0770]
  InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
  JockeyStatus: xorg:fglrx - ATI/AMD proprietary FGLRX graphics driver (Proprietary, Enabled, In use)
  MachineType: System76, Inc. Pangolin Performance
  ProcEnviron:
   LANGUAGE=en_US:en
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-8-generic root=UUID=37c95fc6-0239-4648-a5c8-a388003b91fc ro quiet splash nomodeset video=uvesafb:mode_option=1152x864-24,mtrr=3,scroll=ywrap vt.handoff=7
  Renderer: Unknown
  SourcePackage: xorg
  Symptom: display
  Title: Xorg freeze
  UpgradeStatus: Upgraded to natty on 2011-04-29 (37 days ago)
  dmi.bios.date: 06/07/2010
  dmi.bios.vendor: Phoenix Technologies LTD
  dmi.bios.version: CALPELLACRB.86C.0000.X.0000000000
  dmi.board.asset.tag: Tag 12345
  dmi.board.name: W76x/M77xCUH
  dmi.board.vendor: CLEVO
  dmi.board.version: Not Applicable
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 9
  dmi.chassis.vendor: CLEVO
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvrCALPELLACRB.86C.0000.X.0000000000:bd06/07/2010:svnSystem76,Inc.:pnPangolinPerformance:pvrpanp7:rvnCLEVO:rnW76x/M77xCUH:rvrNotApplicable:cvnCLEVO:ct9:cvrN/A:
  dmi.product.name: Pangolin Performance
  dmi.product.version: panp7
  dmi.sys.vendor: System76, Inc.
  version.compiz: compiz 1:0.9.4+bzr20110415-0ubuntu2
  version.fglrx-installer: fglrx-installer N/A
  version.ia32-libs: ia32-libs 20090808ubuntu13
  version.libdrm2: libdrm2 2.4.23-1ubuntu6
  version.libgl1-mesa-dri: libgl1-mesa-dri 7.10.2-0ubuntu2
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.2-0ubuntu2
  version.xserver-xorg: xserver-xorg 1:7.6+4ubuntu3
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu4
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu7.1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu7