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[Launchpad Bug Tracker <911045@xxxxxxxxxxxxxxxxxx>]

[Expired for linux (Ubuntu) because there has been no activity for 60
days.]

** Changed in: linux (Ubuntu)
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/911045

Title:
  [GM45] xrandr does not enable external display after suspend/resume
  cycle

Status in “linux” package in Ubuntu:
  Expired

Bug description:
  An external monitor is connected to the VGA port of my Thinkpad X200
  Tablet laptop.  Before the laptop is suspended, I can give an xrandr
  command to set up a dual-head configuration.  After resuming from a
  suspend, xrandr does not turn on the external display even though it
  seems to arrange the outputs logically within the virtual screen.  The
  external display starts to work if I switch to a text console by CTRL-
  ALT-F1 and then back to X by CTRL-ALT-F7.  This problem can cause
  window managers such as mutter and compiz to crash if the screen
  configuration gets changed while they are running.

  
  How to reproduce:

  
  $ xrandr
  Screen 0: minimum 320 x 200, current 1280 x 800, maximum 8192 x 8192
  LVDS1 connected 1280x800+0+0 (normal left inverted right x axis y axis) 261mm x 163mm
     1280x800       60.0*+
     1024x768       60.0  
     800x600        60.3     56.2  
     640x480        59.9  
  VGA1 connected (normal left inverted right x axis y axis)
     1280x1024      60.0 +   75.0  
     1024x768       75.1     60.0  
     800x600        75.0     60.3  
     640x480        75.0     60.0  
     720x400        70.1  
  HDMI1 disconnected (normal left inverted right x axis y axis)
  DP1 disconnected (normal left inverted right x axis y axis)
  HDMI2 disconnected (normal left inverted right x axis y axis)
  DP2 disconnected (normal left inverted right x axis y axis)
  DP3 disconnected (normal left inverted right x axis y axis)
  $ xrandr --output LVDS1 --mode 1280x800 --panning 0x0 --output VGA1 --mode 1280x1024 --above LVDS1  # at this point, VGA1 is turned on normally
  $ xrandr --output VGA1 --off --output LVDS1 --mode 1280x800 --panning 0x0  # back to single-head configuration
  $ sudo pm-suspend  # laptop is suspended and resumed
  $ xrandr --output LVDS1 --mode 1280x800 --panning 0x0 --output VGA1 --mode 1280x1024 --above LVDS1  # now VGA1 is not turned on; one needs to switch to a text console and back to X to enable VGA1

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: xserver-xorg-video-intel 2:2.15.901-1ubuntu2.1
  Uname: Linux 3.1.6-1-tuxonice x86_64
  ApportVersion: 1.23-0ubuntu4
  Architecture: amd64
  CompizPlugins: [core,bailer,detection,composite,opengl,compiztoolbox,decor,move,imgsvg,cube,text,place,imgjpeg,expo,ring,regex,imgpng,resize,rotate,workarounds,snap,winrules,scale,resizeinfo]
  CompositorRunning: compiz
  Date: Tue Jan  3 00:01:20 2012
  DistUpgraded: Log time: 2011-10-15 15:18:55.486720
  DistroCodename: oneiric
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes, whatever it takes to get this fixed in Ubuntu
  GraphicsCard:
   Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07) (prog-if 00 [VGA controller])
     Subsystem: Lenovo Device [17aa:20e4]
     Subsystem: Lenovo Device [17aa:20e4]
  MachineType: LENOVO 7448RU2
  ProcEnviron:
   PATH=(custom, user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.1.6-1-tuxonice root=UUID=0cf944fe-a93a-44a3-8289-e9c4fdb6c6a8 ro crashkernel=384M-2G:64M,2G-:128M
  SourcePackage: xserver-xorg-video-intel
  UpgradeStatus: Upgraded to oneiric on 2011-10-15 (79 days ago)
  dmi.bios.date: 09/24/2009
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 7WET60WW (3.10 )
  dmi.board.name: 7448RU2
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvr7WET60WW(3.10):bd09/24/2009:svnLENOVO:pn7448RU2:pvrThinkPadX200Tablet:rvnLENOVO:rn7448RU2:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 7448RU2
  dmi.product.version: ThinkPad X200 Tablet
  dmi.sys.vendor: LENOVO
  version.compiz: compiz 2:0.8.6-0ubuntu9.2.1
  version.ia32-libs: ia32-libs 20090808ubuntu26
  version.libdrm2: libdrm2 2.4.26-1ubuntu1
  version.libgl1-mesa-dri: libgl1-mesa-dri 7.11-0ubuntu3
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 7.11-0ubuntu3
  version.xserver-xorg: xserver-xorg 1:7.6+7ubuntu7
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.0-1ubuntu13
  version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.15.901-1ubuntu2.1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A

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