The status of the free radeon driver is available here: http://wiki.x.org/wiki/RadeonFeature A very recent kernel and additional firmware (firmware-linux-nonfree) is needed for the discrete graphic adapter. A HP Pavilion DV7 with an integrated and a discrete graphic adapter (5470M) from AMD works with the technique called vgaswitcheroo. -- Best regards, Jörg-Volker.