I recommended AMD/ATI for a htpc graphics card or just a card that allows switching between TV and monitor and it's total crap.
The onboard nvidia on the mobo using Nouveau drivers did a better job (detecting hardware etc.) even though it still wasn't very good.
But, the radeon drivers were pure crap. I'll probably install the Catalyst drivers just so the damn card can be used properly. But, it sounds like it's going to be garbage, too.
Why does anyone hype AMD/ATI when neither their FOSS nor their binary blob driver is any good?