Originally Posted by zander
We identified one problem interfering with SBIOS assisted brightness control on GeForce 8 series mobile systems. This problem will be fixed in a future NVIDIA Linux graphics driver release. Unfortunately, I can not provide an estimate for when this graphics driver will become available.
Well, its 2008's APRIL, I have just installed the 169.12 driver version for x11 and still NOTHING while our eyes and batteries are frying with the fabulous brightness control bug, or I prefer to say UNIMPLEMENTED FEATURE.
I'm pretty sure Nvidia is working extremely hard to fix this issue, but i really do belive that its very complex and painful to implement such kind of functionality.
Thank you Nvidia to threat your costumers as a clown.