[Bug 360292] Re: Intel 945GM: X server crashes when trying to use XAA, UXA not fast enough.

[Bryce Harrington]

** Description changed:

  Binary package hint: xserver-xorg-video-intel
  
  The default settings in Jaunty 9.04 beta for this video card are
  unusable, as can be seen in several bug reports (very slow, compositing
  impossible). A work around I found myself was to use the 'Option
  "Tiling" "false"', but the recommended solution is to switch to UXA.
  Both solutions achieve the same framrate in glxgears: around 280fps. UXA
  is better because it corrects many glitches in graphics rendering and is
  completely stable for me.
  
  Although this framerate is perfectly good for desktop, it is not for
  gaming or other 3D tasks. This is the reason I would like to switch back
  to XAA, where it was possible to play alien arena. I have read many
  posts stating that it was possible in the past, but since the UXA
  "solution" there seems not to be many of those around. So I report this
  bug:
  
  How reproducible:
  Install Ubuntu 9.04 beta (notice how slow compositing is);
  Try switching to XAA in xorg.conf;
  restart the machine;
  
  Symptoms:
  X server fails to start leaving a awfull looking greenish screen;
  
  Expected behavior:
  X server should start normally.
  
  Alternatively one may switch to UXA, but then give up playing 3D games,
  using Google Earth, and such.
  
  ProblemType: Bug
  Architecture: amd64
  DistroRelease: Ubuntu 9.04
  Package: xserver-xorg-video-intel 2:2.6.3-0ubuntu9
  ProcEnviron:
   LANGUAGE=pt_BR:pt:pt_PT
   PATH=(custom, user)
   LANG=pt_BR.UTF-8
   SHELL=/bin/bash
  ProcVersion: Linux version 2.6.28-11-generic (buildd at crested) (gcc version 4.3.3 (Ubuntu 4.3.3-5ubuntu4) ) #41-Ubuntu SMP Wed Apr 8 04:39:23 UTC 2009
  SourcePackage: xserver-xorg-video-intel
  Uname: Linux 2.6.28-11-generic x86_64
+ 
+ [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: Acer Incorporated [ALI] Device [1025:0090]
+ 00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller [8086:27a2] (rev 03)
+     	Subsystem: Acer Incorporated [ALI] Device [1025:0090]

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Intel 945GM: X server crashes when trying to use XAA, UXA not fast enough.
https://bugs.launchpad.net/bugs/360292
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