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Dear Ubuntu people, on my fairly new ubuntu install (10.04.1 LTS) on a laptop, the screen brightness changes seemingly at random, i.e. while I do other things like surf the ...
  1. 02-01-2011 #1
    kai12
    kai12 is offline
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    Screen brightness changes arbitrarily (lucid)

    Dear Ubuntu people,

    on my fairly new ubuntu install (10.04.1 LTS) on a laptop, the screen brightness changes seemingly at random, i.e. while I do other things like surf the web. Often, the brightness will decrease some (it does not fade to black as reported by others with similar problems) and come back a few seconds later.

    Is this a known problem? Where could I look for the cause?

    I have disabled any visual effects but that didn't help.

    cheers, kai
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  2. 02-03-2011 #2
    kai12
    kai12 is offline
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    does this happen before you installed ubuntu?
    I wouldn't know - it's a new machine, and the first thing I did was to install lucid lynx.

    It maybe because of your laptop?
    Like a hardware error?
    Could be, I guess, but I have seen strange brightness behavior on another machine where I installed ubuntu (very weird: after the unbuntu install, the (dual boot) windows xp shows strange screen brightness behavior...), so I'm thinking it may be ubuntu after all.

    kai
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