alberto: my previous lappy had a radeon and it was a true pain in the a**s :)
Anyway, there is no way to have 3d acceleration with an ATI no matter the kernel you will ever use without the firmware blob. AFAIK the only way for you to get the correct resolution is to downgrade to 3.4 See, after 3.10 the linux kernel got a little simplification somewhere in the code and now no ati works properly without the proprietary blob :((
I suggest you sell your lappy and for the money you get off of it you buy youself a decent old one with an Intel integrated GPU.
