I have a laptop with an AMD 6630M/Sandy Bridge hybrid GPU. I've struggled in Ubuntu to get fglrx installed. It would run on the discrete card in 12.10, and wouldn't work at all in 13.04.
I'm wondering, are there any distros which have good out-of-the-box support for the latest AMD drivers, particularly new enough drivers to support powerXpress? I suspect this will rely heavily on which version of X11 is being used.
As far as I can tell, fglrx 13.3 Beta should support my hardware, if I can get it correctly installed on a distro.