Are you using dual-screen setup? Direct rendering is disabled when
Xinerama is enabled. In any case , look what your /var/log/Xorg.0.log
is saying about rendering settings.
Sergey
On Tue, 2006-03-28 at 07:13 -0800, cyber rigger wrote:
> I need help reporting a bug.
>
>
> It appears that some later kernel versions
> do not support 3D acceleration in some cases.
> I'm getting this problem with Debain etch and Ubuntu
> Dapper. I first thought it was a problem caused by
> switching to xorg but Ubuntu 5.10 is fine and it uses
> xorg.
>
> ----------------------------------------------------
> The 3D acceleration doesn't work with xorg using the
> mga driver for a Matrox g400.
> My test case is ppracer which runs dreadfully slow.
>
> This is a Debian etch machine with Debian's
> 2.6.15-1-k7 kernel.
>
>
> This is what I have found so far.
>
> Re: No direct rendering with recent kernels
> http://lists.debian.org/debian-x/2006/01/msg00133.html[mga]
>
>
> DRM for MGA broken since 2005-Aug-04.
> https://bugs.freedesktop.org/show_bug.cgi?id=4797
>
>
>
> The 3D acceleration for mga appears to still be
> broken.
>
> Where and how may I respectfully plead for this to be
> fixed?
>
> :^)
>
>
> Thanks
>
>
>
>
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