[ltp] X30, Intel 830M: DRI won't work

Stephan Frank linux-thinkpad@linux-thinkpad.org
Fri, 29 Oct 2004 10:03:50 +0200


Heiko Rosemann wrote:
> Alex et al,
> 
> On Thu, 28 Oct 2004 09:23:02 -0400, Alex Deucher <alexdeucher@gmail.com> wrote:
> 
>>On the 2.6 series kernels you need to load the agp chipset driver as
>>well as agpgart, eg, intel-agp.ko.
> 
> 
> Thank you for this info, this makes the errors while loading i915
> disappear, instead it initializes the DRI correctly. Xorg loads and
> initializes it as well and ends with:
> 
> (II) I810(0): direct rendering: Enabled
> 
> but still, glxinfo reports DRI being disabled and glxgears frame
> numbers stay as low as before. So it seems as if Xorg enables DRI, but
> the rendering libraries (libGL... in this case) fail to use it -
> strange, because the libGL ist the one from the dri-pkg. Am I starting
> out on the correct track with this? Any more ideas?
> 
> TIA, Heiko

Hallo Heiko,

when I had a similar problem on my home PC I finally realized after 
hours of searching and hair pulling that during the update from debian 
stable -> testing the update process hadn't installed the newly 
introduced xlibmesa-dri package that includs all the dri specific 
drivers. As in your case everything seemed fine according to the logs 
but no 3D acceleration happend. The problem became finally visible when 
one started glxinfo with the following additional environment variable 
to show additional information (in my opinion a clear user interface bug):

LIBGL_DEBUG=verbose glxinfo

If that doesn't show any problems that you can solve yourself, maybe you 
could post the output of that command here.

Best regards,
Stephan