Take a look to this bug, please
From: ÐÐÑÐÐÐ ÐÑÑÐÐÐÐ
Date: Fri Feb 24 2012 - 11:23:40 EST
Good day!
My name is Kirill Rusinov. I want to draw your attention to one bugreport.
This message is a result of my failed attempt to email Greg K.H (only the email-bot has answered to me).
I've posted a bug report here: https://bugzilla.redhat.com/show_bug.cgi?id=796626
This applies to problem with the brightness control on the laptop Samsung RV520.
It seems to me it deserves your attention.
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