[Bug 365191] Re: [i945] macbook1, 1 brightness works incorrectly in Jaunty

[Bryce Harrington]

** Description changed:

  Binary package hint: xserver-xorg-video-intel
  
  The LCD brightness stopped to work correctly since I've upgraded to 9.04
  Jaunty. It works fine in MacOSX 10.4.
  
  My model is Macbook1,1 and brightness worked perfectly in 8.10 Intrepid.
  
  At 100% the display brightness goes 100%:
  decreasing the brightness level by 1, the display goes 0% (no light)
  decreasing the brightness level by 1, nothing changes
  decreasing the brightness level by 1, nothing changes
  decreasing the brightness level by 1, nothing changes
  decreasing the brightness level by 1, nothing changes
  decreasing the brightness level by 1, the display goes around 50-80% (not sure) ...
  decreasing the brightness level by 1, the display goes around 20-30% (not sure) ...
  decreasing the brightness level by 1, the display goes around 30-40% (not sure) ...
  
  the display brightness is completely different if I increase the
  brightness.
  
  So the behaviour is kind of erratic and useless... I've tried both
  gnome-brightness-applet, gnome-power-manager and the brightness function
  keys; it's the same erratic behaviour.
  
  Please tell me if you need more info.
  
  ProblemType: Bug
  Architecture: i386
  DistroRelease: Ubuntu 9.04
  Package: xserver-xorg-video-intel 2:2.6.3-0ubuntu9
  ProcEnviron:
   SHELL=/bin/bash
   PATH=(custom, user)
   LANG=en_US.UTF-8
  ProcVersion: Linux version 2.6.28-11-generic (buildd at palmer) (gcc version 4.3.3 (Ubuntu 4.3.3-5ubuntu4) ) #42-Ubuntu SMP Fri Apr 17 01:57:59 UTC 2009
  SourcePackage: xserver-xorg-video-intel
  Uname: Linux 2.6.28-11-generic i686
+ 
+ [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]

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[i945] macbook1,1 brightness works incorrectly in Jaunty
https://bugs.launchpad.net/bugs/365191
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