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Samsung Series 5 laptops use Fn+F2 and Fn+F3 to increase and decrease display brightness. When I press those keys, nothing happens. I already saw that there is the same question about the Samsung Series 7, but it did not work for me. Thank you

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Mind posting a comment to that question? –  soandos Jan 18 '13 at 14:29
    
Have you tried to reinstall the keyboard drivers? Have they ever worked? If so, what has changed since that time? –  nerdwaller Jan 18 '13 at 14:48
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