kernel 2.6.4 agpgrat error on dmesg
 

$ dmesg | grep agp
Linux agpgart interface v0.100 (c) Dave Jones
[drm:drm_init] *ERROR* Cannot initialize the agpgart module.

installed agpgart as builtin, after compiling kernel 2.6.4 and I got that error. im using nvidia riva tnt2 and added this to XF86Config ( Option "NvAGP" "1" ). does it have something to do with agpgart?

lsmod replies:
$ lsmod
Module Size Used by
nvidia 2071688 12

also.. I would like to install nvidia as a builtin and not as module, but building it with the kernel didnt work.. so I have to download drivers from nvidia website and install it as module. is there a trick to install nvidia as builtin?

thanks in advance

1. Probably you have to compile agpgart as a module, as xfree86 startup program seeks it in such form. Nevertheless, it may also work properly when compiled in (try glxgears, or glxinfo to check it), then error message is not significant. Also support for your particular chipset must be compiled (built-in or as a module).
2. Nvidia driver (from Nvidia website) is not a part of kernel, so you probably would have to change original kernel's makefile to include it directly. If you are not really good developer, there are not many chances you can do it correctly.

in what concerns nvidia drivers, you cannot build them inside kernels,

this means that each time re-compile your kernel, you wil have to reinstall them,

also build agpgart as module and not inside kernel, 2 reasons for this :

-> it could solve your problem
$ dmesg | grep agp
Linux agpgart interface v0.100 (c) Dave Jones
[drm:drm_init] *ERROR* Cannot initialize the agpgart module.

agpgart is asked as a module

-> if it still does not work, you will at least be able to use AGP nvidia driver ( with NvAGP=1 )
but if you build agp inside, you will not ( see nvidia install guide and FAQ about AGP )