"Dr. Aldo Medina" wrote:
> 
> Dietmar Schultz wrote:
> >
> > On Tue, Feb 06, 2001 at 01:50:50AM -0600, Dr. Aldo Medina wrote:
> >
> > [...]
> > > (--) NVIDIA(0): Chipset: "RIVA TNT"
> > > (**) NVIDIA(0): Depth 24, (--) framebuffer bpp 32
> > > (==) NVIDIA(0): RGB weight 888
> > > (==) NVIDIA(0): Default visual is TrueColor
> > [...]
> > > (--) NVIDIA(0): Virtual size is 1600x1200 (pitch 1600)
> > > (**) NVIDIA(0): Default mode "1600x1200": 202.5 MHz, 93.8 kHz, 75.0 Hz
> > > (**) NVIDIA(0): Default mode "1280x1024": 157.5 MHz, 91.1 kHz, 85.0 Hz
> > > (**) NVIDIA(0): Default mode "1024x768": 94.5 MHz, 68.7 kHz, 85.0 Hz
> > > (**) NVIDIA(0): Default mode "800x600": 56.3 MHz, 53.7 kHz, 85.1 Hz
> > > (**) NVIDIA(0): Default mode "640x400": 31.5 MHz, 37.9 kHz, 85.1 Hz
> > > (II) NVIDIA(0): Applying EDID constraints on remaining valid modes.
> > > (II) NVIDIA(0): Virtual Screen size determined to be 1600 x 1200
> > > (++) NVIDIA(0): DPI set to (100, 100)
> > [...]
> >
> > I remember, my brother has a Diamond card based on Riva-TNT chip. He
> > also uses a resloution of 1600x1200 at 32bpp, he don't use 3D things,
> > not even GL-screensavers. But I had tried that and it was painfully
> > slow. Switching back to 1024x786 and 16bpp and speed was fine. I
> > thought 3D on this high resolution and colour depth was to much to
> > handle for this card.
> >
> > Btw, the screensavers running in a small window were fine, tuxracer in
> > a window of 640x480 was playable, too. About 16-20 fps, iirc. The
> > larger the tuxracer window was, the poorer the speed was.
> >
> > Me, having a Geforce2, don't see such problems. Unless I turn full
> > screen antialiasing on...
> >
> > --
> > Bye,
> > Dietmar
> 
> The funny thing is that "hardware" acceleration is about 2-3 times
> slower than "software". Thanks any way, as I seem to remember something
> in my previous machine (PII350, RH 6.2) about recommending using 16-bit
> mode, as this is the accelerated bpp. I will try it and post the
> results. Thank you very much.

Well, that was it. I remembered I read somewhere that NVIDIA's drivers
only supported 16-bpp. I remember how my PII350 slowed almost to freeze
in 24 or 8 bpp, so maybe what I'm watching is my PIII800 being able to
maintain a very slow motion netherless. I tried 16-bpp instead 24-bpp,
and IT WORKED!!!: Now I enjoy blazing speed even at 1600x1200. Thanks to
all that tried to help me. As I side note I rechecked NVIDIA's doc and I
didn't found any reference to this, even as I remember having read it
back to 0.9-1 or 3.

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