Newsgroups: comp.os.linux.x
Date: Tue, 07 Jan 2003 19:07:02 -0600

> I don't know how to set up video acceleration and would appreciate
> a direction to go. I have an msi6368 motherboard, which, according to
> the manual, includes a trident blade 2D/3D accelerator. Xfree86 4.2.1
> is on the system. According to the xfree86.org website, the trident
> blade 3D is supported with acceleration. But using tuxracer as a test,
> acceleration is not working. Furthermore, when I quit tuxracer, the
> video timing seems to be affected, and I see what appear to be four
> overlapping screens; I have to restart X. I've tried googling, using
> "trident blade" + xfree86 + 4.2.1 as keywords, but nothing comes up.
>
> From phrases I have encountered in the past, glx and dri seem to be
> important, but I don't know how. My XF86Config-4 file has both being
> loaded in the "Module" section, and a DRI section at the end. I tried
> adding the line 'Option "NoAccel" "false"' in the video card section,
> but it only confirmed the man page statement that this is the default.
> I tried setting "useFBDev" false, but that didn't change anything either.
> I ran glxinfo, but the results are obscure to me, beyond the statement
> that there is no direct rendering. In short, whatever I tried that might
> have some relevance to the video card, had no effect.
>
> I asssume that acceleration is possible with this unit, but maybe not.
> If so, and if anyone can point me to a reference on video acceleration
> and possibly what I have to do, I would be grateful. Thanks.

When XFree86 says it's accelerated, they're only talking about the 2D functions of the card, not the 3D acceleration. I'm pretty sure that there is no 3D support for your card in XFree86.

For more information about cards with 3D support, check out http://dri.sourceforge.net and http://utah-glx.sourceforge.net/

The first link talks about 3D support under XFree86 4.* and the second link is for 3D support under XFree86 3.3.6

Adam