Comment 5 for bug 43154

This issue appears to be hitting me as well. The demo program behaves as
described, plus I get a lockup with geartrain and some of the other demos. Note
the gears works fine ( 450 fps ).

I'm using Mesa 6.5 ( downloaded from mesa3d.org ), xorg 7.0 ( xorg-server
1.0.2-r3 from gentoo ) and the openchrome ( http://openchrome.org/ ) driver. I
have a K8M800 chipset and am running on a x86_64 notebook.

I've built mesa 6.5 with debug enabled and set LD_LIBRARY_PATH to point to the
libs in my build tree. I see the following on the command line :-

  bash$ ./geartrain
  __driCreateNewScreen_20050727 - succeeded
  Mesa warning: couldn't open libtxc_dxtn.so, software DXTn
compression/decompression unavailable

The initial geartrain window appears and then the display is locked. Sometimes,
the whole machine is locked up.

Please advise if there is anything I can do to aid debugging this further.