EN:
Nothing to do under Ubuntu Dapper Drake. 3D acceleration not tested deeply but It worked well too without any modification since install.

FR:
Tout marche bien sous Ubuntu Dapper Drake. L'accélération 3D n'a pas été testé a fond mais semble marcher correctement sans avoir fait la moindre modification depuis l'installation.

PL:
Wszystko dzieje się dobrze pod Ubuntu Dapper Drake. Mimo acceleracja 3D nie była głęboko sprawdzona, wyglądało na to że tak samo dobrze dzialła bez żadniej modifikacji od momentu instalacji.

With my Ubuntu installation (6.06) my new ATI X1600 is not completely working, even with the original ATI drivers.

No DRI (XVideo -> TV, mplayer), no 3D at all.

2D acceleration is working, DRI is working, but GLX (3D acceleration) produces scrambled (and unusable) screen.

This videocard works some bad

Or... you have DRI or you have Acceleration... but you cant have 2 at time...

With DRI activated, you have problems with composite, if you enable composite, you disable DRI... is rarely...

I not recommend ATI x1xxx series for linux yet