I'm seeing similar things on my AMD Athlon 2000+, A7V333, GF4 Ti4200. Do you also have
NVRM: Could not find pre-fetched memory
Please try the following and tell me if it works for you:
- boot level 3
- modify XF86Config and add
Option "NvAGP" "1"
to your Section "Device"
- go to level 5. The X server will very likely crash
- use <CTRL><ALT><F1> to return to console and go back to level 3
- modify XF86Config to set
Option "NvAGP" "3"
- go to level 5 again
Now OpenGL should work (run glxgears or whatever). This is the only way it works for me
However, no matter whether it works or not there will still be ooops and probably things like
(WW) NVIDIA(0): Failed to verify AGP usage
in XFree86.0.log and probably other messages concerning AGP from dmesg. I was sure that came because of my hardware (AMD Athlon and VIA KT333 chipset) that is not really supported by nVIDIA
but I'm experiencing weird AGP problems even on Xeon, Intel SE7505VB2 with both GF FX 5600 and Quadro FX1000