my system is strucking, when the brightness symboll came top off the screen on right side, and it is blinking,then that time the system will struck....I am completely new to ubuntu,so please help me. Thank You Sir.
I've an athec lug netbook ("a MSI clone") and also have the blinking brightness problem after upgrading my Ubuntu 10.04 LTS to 12.04 LTS. Here you have a workaround that is working fine for me:
And then I can adjust the brightness by keyboard (Fn+...)