means if you use the radeon driver and this burns your battery down just install kernel 2.6.37 and you will get 1-2 extra hours.
Bridgman:"Other than not being enabled by default, are you seeing problems with dynpm ? My recollection was that the "glitching" issue was largely fixed a month or two ago..."
"Pretty sure it was in the kernel. My guess is that you would need 2.6.37 to get it. "
maybe you need to activate 'dynpm'