Adjust iMac's monitor grightness

[DeZo]

Does anyone know how to adjust the brightness of the monitor under Linux
(ubuntu for me) on an iMac. The regular f14/f15 don't work under Linux and
I've yet to find a solution via google.

Its my understanding that under Yellow Dog the brightness controls work. Is
there an open source solution?

[DeZo]

Sorry for the repost. The topic should have said "brightness" rather than
"grightness".

Post by DeZo
Does anyone know how to adjust the brightness of the monitor under Linux
(ubuntu for me) on an iMac. The regular f14/f15 don't work under Linux and
I've yet to find a solution via google.
Its my understanding that under Yellow Dog the brightness controls work.
Is there an open source solution?