SiS, DRI and DRM
chechun_kuo at sis.com
Thu Aug 31 18:47:33 PDT 2006
Would you please attach the dmesg and Xorg.0.log file?
I am not sure whether it was caused by improperly drm, dri loading or 3d
From: xorg-bounces at lists.freedesktop.org
[mailto:xorg-bounces at lists.freedesktop.org] On Behalf Of Ian Romanick
Sent: Friday, September 01, 2006 4:33 AM
To: xorg at lists.freedesktop.org
Subject: Re: SiS, DRI and DRM
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Vicente Helano wrote:
> Hi All,
> I am having problems with a sis300 agp graphics card.
> I compiled kernel 2.6.17 with Direct Rendering Manager (DRM) support
> for sis300/305 graphics cards. When the X server (X11R6.8.2) is started
> the DRI and DRM modules are correctly loaded. However, my OpenGL
> applications get wrong rendering (object surfaces seem to have wrong
> If the kernel is compiled without DRM support, everything seems ok. But
> now, looking at Xorg.0.log I found an error message telling that DRM
> module was not found.
> What is going wrong?
When there is no DRM support, 3D falls back to using the software patch.
I'm sure you also notice in that case that it's *much* slower.
As for problems with the SiS driver, I don't think it has gotten any
support in a long time. Do you see errors in all applications (e.g.,
glxgears), or just some? Could you post a link to a screen shot? Could
you also post the output of glxinfo?
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