Quote Originally Posted by netimen View Post
lspci returns for me:
00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07)
01:00.0 VGA compatible controller: ATI Technologies Inc M92 LP [Mobility Radeon HD 4300 Series]
Does that mean I have both adapters turned on? (notebook is quite hot in the left part and battery lifetime estimate is ~2h)

A question about that fix by Sylvian: if I use it, can I afterwards enable the ATI adapter?
Yes (don't know about the fix, I've got the timeline without ATI graphics).