I need to look for a laptop that will work flawlessly with Ubuntu, I know that Intel video cards nearly always have open source driver(rare exceptions exist) and that NVidia's proprietory driver works good, however I have trouble with ATI, it has a zillion models, some having open source driver, some only proprietory, which is usually a trainwreck.
Which is the best place I can check any video card model(especially ATI) if it has a proper open source driver or not?