** Description changed:

  I have random screen flashes in Jaunty beta, where the screen goes black
  for a split second. Similar flashes appear when I play around with the
  brightness applet in the gnome-panel.
  
  To reproduce the problem:
  1) use your hotkeys to set brightness to min (darkest screen)
  2) use your hotkey "brightness up" to go to maximum brightness
  3) go further up beyond the max
  Result: the screen will go dark again. Going further up with brightness will 
at some point stabilize the maximum brightness.
  Example: my BACKLIGHT levels are 1-2-3-4-5-6-7-0 and if I start from 1 and 
keep hitting the "brightness up" hotkey then I get the pattern 
1-4-5-6-7-0-7-2-0-0-0....
  The interesting thing here is that it dims from 0 to 7 to 2 even though I 
press "brightness up".
+ 
+ UPDATE: typing "xrandr --output LVDS --set BACKLIGHT_CONTROL
+ combination" into a terminal fixes the problem. Thanks to Aldrin!

-- 
[i965] Wierd backlight brightness behaviour looks like flashes on Amilo Si 2636
https://bugs.launchpad.net/bugs/356510
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