I have a ATI Dynamic switchable graphics on a HP Pavilion g7 (hp pavilion g7-1246ef) but it has no support in Win7 32-bit.
It seems that I have 2 VGA controllers:
- One on-CPU Intel for energy-efficiency
- One discrete card (an ATI/AMD Radeon HD 6470M in your case) for rendering.
The Intel driver provided Aero support and other options and the Windows update gives a generic driver for AMD but drivers from AMD and HP made for the switching part (including AMD Catalyst Control Center) are not working in this case. More on this (especially the comments) - here.
I gave up for now but I am curious what happens meanwhile.
I know that the AMD Catalyst Control Center allows choosing manually the VGA or letting the applications choose which VGA to use. But what happens when there's no AMD Catalyst Control Center present?