I've installed Mandrake 2009 in my Sony Vaio VGN-c15GP Lap Top. Then I have faced the Va problem again with my laptop. Which is unadjustable LCD brightness. Default it is 100% and I was unable to adjust it.
Problem was same when I was using Ubuntu with the same Lap-top.
Finally I found smartdimmer application, which was easy to install and works fine with my Lap-top.
But now the problem I'm having is only way I have to adjust brightness is using command line.
Have any one found another way of ding this?
Next thing is, is there any way of setting the brightness to a preferred level at that boot time instead of its default 100% ( i.e. to a preferred value instead of 21 in smartdimmer )