From: Phil Baker <baker1tex@ya...> - 2004-05-29 17:18:11
Apologies up front, I'm new to the list and can't figure out how to
reply to the ongoing thread about the status of DRI support for Matrox
cards. This message is primarily intended for Chris Metzler. I found
the thread when going through the similar issues as Chris.
I have a Matrox G450 that worked great on Fedora Core 1, the DRI
modules were loading fine, I had great (at least what I consider great)
hardware acceleration. The Flying Toasters screensavers worked fine,
as did Tux Racer. I only have a single display connected to the card.
The problem came when I did a clean install of Fedora Core 2. The
flying toasters looked horrible and Tux Racer locked my display.
Tailing /var/log/Xorg.0.log showed the DRI modules were loading. I
thought it was an x.org issue, since it worked great under XFree86 4.3
under Fedora Core 1.
I remembered reading somewhere that hardware acceleration was not
supported in dual-head mode, so I edited my /etc/X11/xorg.conf file to
explicitly disable Xinerama. It ended up working, I got the 3D
acceleration back that I had under Fedora Core 1. Here is what I added
to the xorg.conf file:
Section "Server Flags"
Option "Xinerama" "no"
Incidentally, I have another computer with a Matrox G550 on it. It's
brand new, just installed Fedora Core 2 on it. DRI and full hardware
acceleration worked fine out of the box.
Hope that helps.
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