Re: Dual Athlon, AGP, and PCI

[Agus Budy Wuysang <supes@theOffice.net>]

"Paul G. Allen" wrote:
> 
> The NVidia driver, as advertised, will use its own AGP driver, Jeff's
> agpgart driver, or fall back to PCI mode. According to NVidia, you can
> enable the different modes by setting NVagp in XF86Config-4 to a number.
> I set it to use agpgart. Here's the rub.

My mainboard is Abit KT7A, when I was using kernel 2.2.x
I could use NV internal AGP support, after upgrading
kernel to 2.4.x I have to use AGPGART, otherwise it will
fall back to PCI mode.

> Using the same software I used to generate the Kernel source
> documentation on my web server, I took a look at the NVidia driver. I
> found a lot of useful DEBUG code and I found some conditional code that
> allows the NVidia driver to use agpgart. Neither code section was being
> compiled either by the Makefile or the RPM .spec file. So, I modified
> the Makefile for NVdriver (-DDEBUG and -DAGPGART), compiled and
> installed NVdriver, and restarted X. Black screen and Ctrl+Alt+Del.

You don't need to to do this, it is in NVdia README

Option "NvAGP" "integer"
 Configure AGP support. Integer argument can be one of:
0 : disable agp
1 : use NVIDIA's internal AGP support, if possible 
2 : use AGPGART, if possible 
3 : use any agp support (try AGPGART, then NVIDIA's AGP) 
Default: 1.

There are other options you can use.
see Appendix D NVGLX readme.

Oh well binary drivers sux, but better than setting aside
another partition just for running Quake3 under Window$ :)

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