Hello group,

Here is my first problem, as explained in PR 
http://www.freebsd.org/cgi/query-pr.cgi?pr=59298:
When trying to render any scene with blender, and pushing the "render" button, blender 
core dumps with this
error message:
-------------------------
        assertion "vb.context == ctx" failed: file "radeon_vtxfmt.c", line 1061
        Abort trap (core dumped)
        -------------------------
I tried to set RADEON_NO_VTXFMT to 1 but the problem go somewhere else, blender 
becomes very unstable and crash too frequently.

My other problem is about a strange warning message i got in Xfree86 logs as explained 
in http://www.freebsd.org/cgi/query-pr.cgi?pr=59297 :
when closing any opengl window application with the escape key, described in this 
sample code:
----------------------
        if(key == ESCAPE)
        {
                glutDestroyWindow(window);
                exit(0);
        }
        ----------------------
        i got this warning in /var/log/XFree86.0.log:
        ----------------------
(WW) RADEON(0): [dri] RADEONDRITransitionTo2d: kernel failed to unflip buffers.
        ----------------------
        But if i use the system close button, everything is going fine, but is this 
error is harmless or not ?

Thanks for any help.

Sam._
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