I'm not sure if this is relevant for games or graphics, but I'm having troubles with my XGL-enabled GNOME desktop. 3D games (Doom3, Unreal Tournament 2004 (ut2004), et al) run at a paltry 8FPS.

If I disable XGL, 3D game performance returns to normal.

What have I goofed up on or what can I do to restore the performance of the games without having to disable XGL? (I did do some searching and have found nothing . )

System:
Asus A8N32-SLi
Athlon 64 X2 4200+
2GB RAM (PNY 1GB x 2, 2.5CAS)
PNY Nvidia 7900GS video card (256MB)

OpenSuSE 10.2

Thanks much.

Well I'm afraid XGL (which is still at development state if I'm right) eats up a lot of resources; shortly said, you're not doing anything wrong, you just probably can't run games as smoothly as without XGL. You could use top and such programs to try and see how much resources it eats up, but my point of view is that it's eating a lot, and that since you don't need it for games (heh, it's not doing anything for your games -- just for your desktop ), don't use it while playing them. With a little effort you could configure things so that you run your games with regular Xorg and when not playing, use XGL. You seem to have a lot of memory, both system RAM and on video card, but I don't think it's enough for running XGL and games.

I said it and I'll say it again: you're not winning anything having XGL running when playing games, so if you're wise, you don't buy more hardware but just don't use XGL when playing games.