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.. :)