NVidia driver not using AGP?

[Kenneth Culver]

Quoting Louis LeBlanc <FreeBSD at keyslapper.org>:

> On 11/30/04 11:27 AM, Kenneth Culver sat at the `puter and typed:
>> Quoting Louis LeBlanc <FreeBSD at keyslapper.org>:
>>
>> > <SNIP>
>>
>> Wrong. From nvidia's readme:
>> Similar to the NVIDIA Linux Driver Set, the user can decide if the NVIDIA
>> driver should use its internal AGP GART driver or if it should rely on an
>> OS provided AGP GART driver with the "NvAGP" XFree86 config file option:
>>
>>   - Option "NvAGP" "0"       Disable AGP
>>   - Option "NvAGP" "1"       Use NVIDIA's AGP GART Driver
>>   - Option "NvAGP" "2"       Use the OS AGP GART driver (agp.ko)
>>   - Option "NvAGP" "3"       Attempt "2", fall back to "1"
>>
>> If you want to use the OS's AGP driver, you'll have NvAGP set to 2, 
>> you have it
>> set to 0, which means NO agp at all.
>
> <SLAP to the forehead>
> I stand corrected.  I'll try setting it to 2 when I get home this
> evening.
>
>> <SNIP>
>>
>> The video on my machine is still fairly responsive with the AGP 
>> turned off as
>> well, and several games are playable as well, but that doesn't mean 
>> AGP is on.
>> Your system most definitely has AGP turned off... and I'm willing to 
>> bet that
>> if you set NvAGP to 2 in order to use the OS's agp, you'd either 
>> crash, or it
>> just wouldn't work.
>
> I don't think it will crash.  IIRC, before I explicitly turned AGP off,
> I was getting a message saying that the NVidia AGP was failing, and it
> was falling back to the native AGP.  I'll try a few different settings,
> and I'll rebuild the drivers with the NVidia AGP enabled if the native
> driver doesn't work.
>
> The real kicker is that you have to rebuild the darn kernel if you want
> to disable the native AGP driver . . .  I'll go ahead and do that if the
> native AGP winds up not working - no sense building it in if it won't
> work, right?
>
> I'll post the result tonight.
>
> Thanks for straightening me out there!
>
No problem. Sorry if I seemed rude.

Ken