İ'm using a HP Pavilion G6. Graphic card is HD6470M and switchable with HD4200. I have installed the proprietary driver in additional drivers. But graphic effects are very slow.
I also tried install up to date driver from ATI/AMD website but after restart system is not starting. Even if system starts don't work properly. So i removed the driver.
Now i am using the proprietary driver. When i open Catalyst CC i see HD4200 as active GPU. But also i see high performance GPU is active.
I take a look on this site and found some answers but don't work.
(I am using 64bit Ubuntu 11.10)
I'm new in ubuntu and i will develop software on it.
Sorry for bad English. Thanks...