My work station is a Macbook Pro which has...
- integrated graphics: Intel HD 3000
- discrete graphics: Radeon XXXX...
I have installed drivers for the discrete graphics right after installation.
During normal usage, I notice that the calculated time for the remaining battery life frequently changes significantly - therefore I assume that Ubuntu 12.04 switches between the integrated and discrete graphics.
However, the indicated battery life only changes between 1:30 and 3 hours, which is significantly less than the 5-6 hours I get when using OSX 10.7.X.
- Is all of this this due to an overhead caused by 'bad' drivers that I have to expect - or is it just that I'm using discrete graphics all the time?
- How can check what graphics I'm currently using?