The Card is a PCI SiS 305 with 32 MB RAM.
I use DRM and Mesa from CVS with a 2.6.13-rc5 kernel.

I see

1)
I get segfaults in many OpenGL programs, including glxgears
and gears from Mesa/progs/demos. The segfaults are always
in neutral_VertexAttrib4fvARB. The problem seems to occur
in all  programs using vertices. Programs using only
DrawPixels() and such are not affected.

2)
The driver has GL_NV_vertex_program in it's extension
string. I have not found a single occurance of
GL_NV_vertex_program in the driver source.
Wile I think the driver really should support
vertex programs and wanted to add them anyway
this seems strange.

3)
I get lots of "Mesa 6.3.1 implementation error:
User called no-op dispacth function (an unsupported
extension function?)" messages with the programs that otherwise
work. If I remove glutMainLoop() from winpos.c
I get none, but if I remove the gl calls from the draw()
function they still appear.

What could be the cause of these problems?

Philipp


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