Possible Duplicate:
Can’t install ATI proprietary drivers in 12.10
Radeon HD 2000, 3000, 4000 on 12.10 Quantal: fglrx (legacy) 12.6 unsupported, what to do?
I know there is a some open source driver. What its status and can I enable it in Ubuntu 12.10?
Anyway I got integrated Radeon HD 4250 (It's a previous generation of AMD chipsets, so I guess it's not so old).