I compiled agp statically into the kernel
agp0: <Intel 82865 host to AGP bridge> mem 0xf8000000-0xfbffffff at device 0.0 on pci0
NVRM: detected agp.ko, aborting NVIDIA AGP setup!
kldstat -v says:
I tried to load the nvidia agp module but didn't succeed. I tried to disable freebsd agp in device.hints, set agp_load="yes" in loader.conf and set NvAGP to 1 in xorg.conf but it always said "detected agp.ko, aborting NVIDIA AGP setup!"
Anyway, my chipset is not listed as supported by the nvidia agp in the documentation.
When I compiled the driver I told it to use the FreeBSD AGP GART driver.
You can find the output of dmesg and kldstat -v here:
Thanks for your interest in my problem!