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Re: 3d with nvidia

On Sat, 2002-03-02 at 06:24, Shri Shrikumar wrote:

> Ive also looked throught the readme and here is the output of
> /proc/nv/card0
> ----- Driver Info ----- 
> NVRM Version: NVIDIA NVdriver Kernel Module  1.0.2314  Fri Nov 30 19:33:20 PST 2001
> Compiled with: gcc version 2.95.4 (Debian prerelease)
> ------ Card Info ------
> Model:        RIVA TNT2 Model 64/Model 64 Pro
> IRQ:          11
> Video BIOS:
> ------ AGP Info -------
> AGP status:   Enabled
> AGP Driver:   AGPGART
> Bridge:       Via Apollo Pro KT133
> SBA:          Supported [disabled]
> FW:           Supported [disabled]
> Rates:        4x 2x 1x  [4x]
> Registers:    0x1f000217:0x00000104
> What is SBA / FW - Why are they disabled ? Any thoughts.

SBA = Side Band Addressing
FW = Fast Writes

The Nvidia drivers only enable these if it is sure it doesn't cause
problems with the AGP chipset.  I've never managed to find a machine
that could have both enabled.

I seem to recall something about VIA chipsets having problems at 4x
rates.  I could be wrong though.  Make sure that you DON'T have agpgart
compiled into your kernel, use the nvagp instead, as it automatically
implements the workarounds for various chipset problems.  Also, what
library does glxinfo say it is using?


If reporters don't know that truth is plural, they ought to be lawyers.
		-- Tom Wicker

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