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    Cannot change brightness

    Hello,

    After installing (fresh install) kubuntu 9.10 alpha 3 (kde 4.3 RC 3) I can't change the brightness of the screen.

    I have tried through the shortcut keys, panel applet (battery monitor) and through the System Settings.

    Lenovo 300 N100 with kubuntu 9.10 alpha 3, KDE 4.3 RC 3.

    Ofir

    Edit:
    Other OSes (Ubuntu Hardy and Windows XP) installed on the same laptop can change the brightness.
    Plus, it seems that all the fn keys on my laptop are not responding/allocated.
    I really appreciate any help, including a solution to change the brightness through the command line.
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