From: Nick Warne <nick@linicks.net>
To: linux-kernel@vger.kernel.org
Subject: Re: How to disable slow agpgart in kernel config?
Date: Fri, 11 Feb 2005 18:04:06 +0000
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> > This surprises me, especially considering the in-kernel nvidia-agp driver
> > was actually written by NVidia. Are there any agp error messages in
> > your dmesg / X log ?

> With the nVidia own nv_agp it appears directly in all apps, very fast 
> under GNOME 2.8.1. Why, I do not know. Also game (opengl) performance is 
> faster with the nv_agp, that I haven't used the kernel agp for months, now.

This is interesting.  I always used agpgart without a second thought (2.4.29, 
GeForce4 MX with Via KT133 chipset).

I just read through the nVidia readme file, and there is a comprehensive 
section on what module to use for what chipset (and card).  It recommends 
using the nVagp for my setup, so I just rebuilt excluding agpgart so I can 
use the nVdia module.

I never had slowness as such in KDE or X apps, but playing quake2 openGL I 
used to get a 'wave' type effect rippling down the screen occasionally.  A 
quick test using the nVagp module to have fixed that...

I will test for a few weeks.

Nick
-- 
"When you're chewing on life's gristle,
Don't grumble, Give a whistle..."
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