> > Interesting. Does adjusting the brightness works at all with rivafb ? > > I though it only did full on vs full off ? > I posted a patch for this a while ago.
Either I missed it or my memory is failing me ;) > > One thing... The formula you are using to calculate the value written, > > ideally, you should try to understand the OF forth code setting the > > brightness and reproduce the precise formula used there. It uses > > some values in the device-tree as parameters for example. I wonder > > if we risk damaging the backlight circuit by writing incorrect values > > there ... > > Well, I simply didn't get around to do it yet. I'm using the patch for > several months now, so incorrect values don't seem to cause any harm. > If you choose values between 1 and 15 the values will always be _lower_ > than the ones set by MacOS X. Well, I'm concerned about other models who would try to use your patch in fact.... Ben.
