Date: Wed, 18 Feb 1998 09:39:10 -0700 (MST) From: Atipa <freebsd@atipa.com> To: Norman C Rice <nrice@emu.sourcee.com> Cc: neswold@fnal.gov, Capriotti <capriotti@geocities.com>, hackers@FreeBSD.ORG Subject: Re: S3 Virge/DX video card Message-ID: <Pine.BSF.3.91.980218091955.28712A-100000@dot.ishiboo.com> In-Reply-To: <19980218105333.09607@emu.sourcee.com>
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Lots of cards are using EDO DRAM that do not have font corruption. I have
font corruption on one machine w/ a S3 ViRGE (older one), using either
AcceleratedX or XFree86. Win95 has no problem whatsoever. Maybe 95
doesn't do any font caching...
In 16bpp 1024x768, you are only using 1024x768x16/8 = 1.57MB of video
RAM. The remaining half meg (or 2.5 MB for 4MB cards) or so goes to font
caching and backing store. This is where we all get punched.
One thing that helped me (a bit) was to:
# for i in /usr/X11R6/lib/X11/fonts/misc/*.gz; do
> gunzip $i
> compress `echo $i | awk -F. '{print $1}'`
> done
# mkfontdir /usr/X11R6/lib/X11/fonts/misc
The newer XFree uses gzipped fonts, and I have had more luck with normal
or uncompressed fonts.
There is also a way to turn off font caching, but I can't remember how. My
machine w/ the problem runs mainly as a server, so I gave up on trying to
fix it rather quickly.
Kevin
On Wed, 18 Feb 1998, Norman C Rice wrote:
> On Wed, Feb 18, 1998 at 09:30:23AM -0600, Richard M. Neswold wrote:
> > On Wed, 18 Feb 1998, Capriotti wrote:
> >
> > > I'm havin problems to make a brandless S3 Virge/DX 4MB EDORAM card to work
> ^^^^^^
> This could be the source of the corruption you're seeing -- the EDO ICs
> just do *not* perform as well as real video RAM, but they're cheaper and
> that's probably why they're used on a ``brandless'' card.
> --
> Regards,
> Norman C. Rice, Jr.
>
> > > with X.
> > >
> > > Anyone out there w/ the same problem ? Any solution ?
> >
> > I had problems using the S3V server; there was constant video corruption and
> > the fonts in the virtual terminals were blasted beyond recognition.
> > According to the XFree86 documentation, the SVGA server has better support
> > for the ViRGE chips than the S3V server. It also mentions that future
> > versions of the S3V server will incorporate the code from the SVGA server.
> >
> > Anyways, I now use the SVGA server. It recognizes the ViRGE/DX chip and
> > performs very well. One bad point: I can't get 32/24 bpp to work without
> > some video corruption -- but 16 bpp works fine...
> >
> > Rich
> >
> > ------------------------------------------------------------------------
> > Richard Neswold, Accelerator Div./Controls Dept | neswold@fnal.gov
> > Fermilab, PO Box 500, MS 347, Batavia, IL 60510 | voice (630) 840-3454
> > 'finger neswold@aduxb.fnal.gov' for PGP key | fax (630) 840-3093
> >
> >
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