ubuntu-x-swat team mailing list archive

[Andreas Schildbach <launchpad.net@xxxxxxxxxxxxx>]

** Summary changed:

- [i915] external screen stays dark after suspend/resume via lid
+ [i915] dualscreen: some screen stays dark after suspend/resume via lid

** Description changed:

  Binary package hint: xserver-xorg-video-intel
  
  On Jaunty latest on a Dell Latitude X1 (i915GMS), with an externally
- connected Dell 2405 configured for extended desktop, the external screen
- stays dark after going through suspend/resume.
+ connected Dell 2405, the external (sometimes the internal) screen stays
+ dark after going through suspend/resume via lid close.
+ 
+ I can mostly recover from the situation by Alt-F1 to shell and
+ restarting GDM. However, things are very weird afterwards. Both gnome
+ panels sits directly on top of each other. Maximizing windows on the
+ external screen result in ~100 pixel wide windows, although the screen
+ has got 1920 pixels and the desktop background spreads to all of those.
+ 
+ - Suspending via FUSA or pm-suspend instead works as expected.
+ - Turning on "Pipe-A forcing" does not help with the problem.
+ - I have the same issue on Karmic and Non-KMS (either EXA or UXA), but *not* on KMS.
+ - The bug shows up in either extended desktop or mirrored configuration, does not matter.
+ - Kind of related: When I deactivate the external display with screen resolution prefs and close the lid, the external display is briefly activated and used for (extended?) Desktop - why?
  
  This is a regression from Intrepid and Hardy.
  
  [lspci]
  00:00.0 Host bridge: Intel Corporation Mobile 915GM/PM/GMS/910GML Express Processor to DRAM Controller (rev 03)
      	Subsystem: Dell Device 01a3
  00:02.0 VGA compatible controller: Intel Corporation Mobile 915GM/GMS/910GML Express Graphics Controller (rev 03)
      	Subsystem: Dell Device 01a3

-- 
[i915] dualscreen: some screen stays dark after suspend/resume via lid
https://bugs.launchpad.net/bugs/352708
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