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After period of inactivity screen went dim, and eventually got black, it couldn't get to previous state. When mouse is moved screen from black came to minimum brightness state. Combination of Fn and brightness button fixed this, but on very strange way. Every time I pressed button to increase brightness it came more bright but with next push of button went to minimal brightness. So, every second push of button puts screen to minimum. Gremlins?

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closed as off topic by fossfreedom May 14 '12 at 9:20

Questions on Ask Ubuntu are expected to relate to Ubuntu within the scope defined by the community. Consider editing the question or leaving comments for improvement if you believe the question can be reworded to fit within the scope. Read more about reopening questions here.If this question can be reworded to fit the rules in the help center, please edit the question.

    
Which BIOS Version do you have? Did you already try to update BIOS to the latest version and set the screen brightness in BIOS to maximum (both on battery power and on power supply mode)? –  offline Apr 25 '12 at 23:37
    
This question should instead be filed as a bug report, thanks! Instructions here. –  Jorge Castro May 14 '12 at 5:39

protected by Community Nov 16 '11 at 14:59

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