I have HP-DV6 3110tx laptop with Mobility Raedon 5650 dGP. Initially when i installed Win8 only the iGP works then after googling the problem i found a updated driver. After installing it ,dGP works but again a new problem arises that I cann’t switch back to iGP.
I’m using http://www2.ati.com/Drivers/mobile/12-10_mobility_vista_win7_win8_64_dd_ccc_whql_net4.exe
I found it here:http://forum.notebookreview.com/hp-drivers-software-forum/486908-drivers-hp-dv6-3xxx-dv7-4xxx-envy-17-1xxx-intel.html
But this doesn’t really fix the problem because the reference drivers do not include an Intel counterpart. In my case, that means that brightness controls do not work and i can’t switch back to IGP.i.e. it runs dGP only