Quote Originally Posted by Melcar View Post
Well, radeon on my laptop (200M) reduces battery life nearly by 1/3 (45min to 30min). If I load up DynamicClocks I gain around 10min.
This my experience as well from running an X1400 on a Thinkpad and various distros. Clocking down fglrx has always given me much better battery life than using the defaults in radeon and the laptop is certainly cooler as well.

What relevant and working radeon options are actually possible to specify in xorg.conf to get better battery life? The docs are not really clear on this.