ubuntu-x-swat team mailing list archive

[Bryce Harrington <bryce@xxxxxxxxxxxxxxxxxxx>]

** Description changed:

  Binary package hint: xserver-xorg-video-intel
  
  I have an Apple MacBook (Model "Macbook2,1") with Intel GM945 integrated
  graphics. I also have the official proprietary-to-DVI dongle, and a Dell
  LCD flat-panel with a native resolution of 1600x1200. When I'm at home,
  my preferred setup is to use the external monitor (and an external USB
  keyboard and mouse), and turn off the laptop's internal display (so I
  don't wear out the backlight). Unfortunately, if I disable the internal
  display and the external display is using a resolution higher than
  1024x768, the external display goes nuts.
  
  I have not experimented much with gnome-display-properties, as it has an
  annoying habit of trying to adjust my xorg.conf, but I spent some time
  playing with xrandr directly:
  
  With the internal display set to 1280x800 (native resolution) and the external display set to 1600x1200 (native resolution):
   - "xrandr --output LVDS --below TMDS-1" works fine (putting the internal display below the external one, both active)
   - "xrandr --output TMDS-1 --off" works fine (disabling the internal display)
   - "xrandr --output LVDS --off" works as long as the TMDS-1 mode is 1024x768 or lower.
  
  Since I can't disable the internal display, my current workaround is to
  run "xrandr --auto" (enabling both displays at their native resolution)
  and then run "xrandr --output LVDS --pos 0x0 --set BACKLIGHT 2"
  (overlapping the internal and external displays, and disabling the
  internal display's backlight - the strange value is from
  https://bugs.launchpad.net/bugs/367309)
  
  I will attach screenshots of the problem and a log-fragment.
  
  ProblemType: Bug
  Architecture: amd64
  DistroRelease: Ubuntu 9.04
  Package: xserver-xorg-video-intel 2:2.7.0-1ubuntu2~xup~1
  ProcEnviron:
   PATH=(cuusernameom, user)
   LANG=en_AU.UTF-8
   SHELL=/bin/bash
  ProcVersion: Linux version 2.6.28-11-generic (buildd@creusernameed) (gcc version 4.3.3 (Ubuntu 4.3.3-5ubuntu4) ) #42-Ubuntu SMP Fri Apr 17 01:58:03 UTC 2009
  SourcePackage: xserver-xorg-video-intel
  Uname: Linux 2.6.28-11-generic x86_64
  UnreportableReason: This is not a genuine Ubuntu package
+ 
+ [lspci]
+ 00:00.0 Host bridge [0600]: Intel Corporation Mobile 945GM/PM/GMS, 943/940GML and 945GT Express Memory Controller Hub [8086:27a0] (rev 03)
+     	Subsystem: Intel Corporation Device [8086:7270]
+ 00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller [8086:27a2] (rev 03)
+     	Subsystem: Intel Corporation Device [8086:7270]

-- 
Video corruption when disabling internal monitor
https://bugs.launchpad.net/bugs/377598
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