This helps, but only if you disable Compiz and use OpenGL for output (i.e. not xv).Aside: One thing I did with both NV cards that did not work well with ati chip is to enable the OpenGL for verticle sync option. I haven't tried without it so it may be important (or not).
So my experience is that both makers have decent hardware for HTPC uses, or at least NV44 and R580 gear works nicely. The R580 has the edge in image quality outputting to a CRT TV while the NV44 card is really more appropriate for an HTPC due to it being fanless and small (R580s are large, rather warm cards.)
does anybody know, if the 4670 is supported by OpenSolaris ?
So far I would be happy just with 2D, better than nothing ;-)
I searched myself a little bit on phoronix, it seems like there is a RadeonHD Port for Solaris:
But RadeonHD itself has some issues with the 4670:
Well I'll wait and see what kind of RadeonHD will be included in the 2008.11 OpenSolaris release ...
thx for the answer
There is only one graphics engine in the HD2xxx, 3xxx and 4xxx parts -- a unified shader 3D block -- so 2D, video and 3D acceleration all more or less come together. That is why you aren't seeing 2D, then video, then 3D spread out over time like we did with previous chip generations.