I recently installed Ubuntu 12.10 and in my graphic details it says that it is unknown. I tried to install the drivers from the AMD website and it installed perfectly, but when I reboot, after my login it only shows my desktop image and my resolution is changed.
So I uninstalled with the instructions from this website: How do I remove ATI/AMD Drivers downloaded from their site?
My computer is a Asus F5SL;
Dual Core 1.8Ghz; ATI Radeon HD 3470; 3GB ram; 250GB HDD; 30GB partition for ubuntu; Dual boot with Windows 7.