I installed the .run driver from the amd page.
With 50% fan speed the temp i get is abput 54C.
The thing is that when i'm in windows with 50% fan speed the temp is 41C tops.
I think this problem has something to do with the clocks been always at max in ubuntu (even when idle):
Default Adapter - AMD Radeon HD 6800 Series
Core (MHz) Memory (MHz)
Current Clocks : 900 1050
Current Peak : 900 1050
Configurable Peak Range : [775-1000] [1050-1250]
GPU load : 0%
and in windows the current clocks are at 300 when idle.
I wish someone helps me understand why in ubuntu the clock are always so high