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I just installed ubuntu 11.04 on my samsung NF208 and at first it worked just fine, the fn key was all alright except the fn+f9 (I guess that's normal as it opens up a samsung-specific software). Yesterday I updated my ubuntu and after I rebooted the system, the brightness control key (fn + up/down) just won't work. It does display the brightness indicator and the indicator itself is changing when I press the fn + up/down, but the display won't change a bit. please help me, I'm new to this ubuntu thing :)

p.s I experienced same thing when I use win7 after I installed an update for Intel Graphic Driver. I managed to rollback the driver and it worked again. Do I get the same problem here in ubuntu? then how can I rollback the driver in ubuntu? or is it a totally different problem?

thanks for your concern.. :)

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closed as too localized by Luis Alvarado Mar 14 '13 at 16:57

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1 Answer

You cound try to downgrade the driver package. Did you install the driver from the repositories? If yes you can downgrade a package using:

sudo apt-get install package=version

I think you are looking for the package xserver-xorg-video-intel. To find out your current version, use

dpkg -s xserver-xorg-video-intel

Information on the package can be found here.

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thanks, now it works again :D –  pradityan Nov 18 '11 at 10:45
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