NVidia driver not using AGP?

[Louis LeBlanc]

On 11/29/04 05:16 PM, Kenneth Culver sat at the `puter and typed:
> Quoting Louis LeBlanc <FreeBSD at keyslapper.org>:
> <SNIP> 
> > The xorg.conf card section is:
> > Section "Device"
> >   Identifier "NV TwinView"
> >   VendorName  "nVidia Corporation"
> >   Driver "nvidia"
> >   # update this with the PCI id of your card.  Consult the output
> >   # of the 'lspci' command. The  BusID is usually optional when
> >   # only using one graphics card.
> >   BusID       "PCI:1:0:0"
> >   BoardName   "NV34 [GeForce FX 5200]"
> >
> >   # These are extras that may need removal
> >   Option "NoLogo" "True"
> >   Option "RenderAccel" "True"
> >   Option "NvAGP" "0"
> 
> The above line turns of AGP altogether.

No, it turns off the NVidia AGP driver:
# sysctl dev.agp
dev.agp.0.%desc: Intel 82875P host to AGP bridge
dev.agp.0.%driver: agp
dev.agp.0.%location: slot=0 function=0
dev.agp.0.%pnpinfo: vendor=0x8086 device=0x2578 subvendor=0x1028 subdevice=0x0157 class=0x060000
dev.agp.0.%parent: pci0

The FreeBSD agp device is still active.

> > <SNIP>
> > # sysctl hw.nvidia
> > hw.nvidia.agp.card.rates: 8x 4x
> > hw.nvidia.agp.card.fw: supported
> > hw.nvidia.agp.card.sba: supported
> > hw.nvidia.agp.card.registers: 0x1f000e1b:0x00000000
> > hw.nvidia.agp.status.status: disabled
> > hw.nvidia.agp.status.driver: n/a (unused)
> 
> The above lines confirm that AGP is off.

They confirm that NVidia AGP is off.

> > <SNIP>
> According to your system, AGP isn't working on your system either.

My video is working quite well with the FreeBSD AGP device.  I've
never worked with a system that had more responsive video, and that's
using the twinview feature to run two monitors.  Makes me want to work
from home all the time, since my work desktop is a pokey old 440Mhz
hacked together piece of junk that was built 5 years ago.

Just because NVidia wrote their own AGP driver doesn't mean every one
of their cards must have it to function well.  I believe it is
mentioned in the linux readme that some cards are better off with the
AGP driver that comes with the OS.  I know I read something to that
affect somewhere.

Lou
-- 
Louis LeBlanc               FreeBSD at keyslapper.org
Fully Funded Hobbyist, KeySlapper Extrordinaire :)
http://www.keyslapper.org                     Ô¿Ô¬

Information is the inverse of entropy.