Originally Posted by svu
I got some old P3 PC with nVidia TNT2:
nVidia Corporation NV5M64 [RIVA TNT2 Model 64/Model 64 Pro] (rev 15)
Trying to enable Composite extension, got unstable system - after some period of normal work, X server crashes with Signal 11 and restarts (thanks to gdm). I enabled/disabled dri, I turned HwCursor on/off, switched AGP parameters - same story all the way.
Yes, use older drivers since TNT2 is broke in the latest.