AMD Drivers Issues Kali 2.0 (Radeon HD 7400M)

Hi,
I tried to install AMD drivers from official AMD website. The site says that 7400M is supported but while installing it gives error "Unsupported graphic card detected". I tried installing a previous version (14.9) it gives error of XServer and XOrg -- its for a lower version.

I was able to install drivers on kali 1.0.9 without any errors.

Please let me know if I need to install additional packages before installing Drivers and Catalyst

-Regards

UPDATE: Just found out that AMD proprietary drivers are incompatible with GNOME Desktop. So we have to install open source drivers.