Yesterday I installed on my chakra linux the kernel 3.4.2 bfs ck, this has resulted in a reduction in temperature great. In ubuntu with kernel 3.2 and 12.4 catalyst was 74 degrees minimum, on chakra now I have 61/64 degrees. It's fantastic. My lapto have amd turion x2 and ati radeon 4650.

fran@chakra-pc ~]$ sensors
Adapter: Virtual device
temp1: +62.0C

Adapter: PCI adapter
temp1: +62.4C (high = +70.0C)
(crit = +115.5C, hyst = +110.5C)

my laptop resurrected!