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[Janek Kozicki <janek_listy@xxxxx>]

Thanks, I never followed ATI issues. Now I recall something like that
happening. I'll check with Fernando what we can do.

But maybe we can do some simple check built into yade to warn the user
about bug in another software that causes yade to display stuff in a
wrong way. Simplest would be to see if "lspci" contains ATI, if it does
then write a message that compiz-fusion must be disabled and fglrx
binary drivers must be installed.

Let's keep this bug as New (just for me) until I solve this issue with
Fernando. That's just for me to not forget about that :)

-- 
bzr1735 OpenGL + ATI serious problems, ubuntu 9.04
https://bugs.launchpad.net/bugs/419861
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Status in Yet Another Dynamic Engine: New

Bug description:
I am helping Fernando Alonso-Marroquin to get yade running on his PC. He has ubuntu 9.04, ATI graphics card:

#lspci | grep VGA
01:00.0 VGA compatible controller: ATI Technologies Inc RV516 [Radeon X1300/X1550 Series]

#glxinfo | grep direct
direct rendering: Yes

And he is encountering serious display problems. Sometimes everything works as it should but sometimes:

- only boxes are drawn (either solid or wireframe) and spheres are not drawn at all
- only light source is drawn, and nothing else
- in all cases at least a light source is shown
- drawing Body_ID always works and can be used to reassure the existence of bodies in the OpenGL display

This seems to be irrelevant to restarting yade. Sometimes it does, sometimes it doesnt work just after the restart. The same applies, when closing or opening 3D views, or generating a new simulation. Sometimes it works, sometimes doesnt.
I've never seen such behaviour on my PC.

I have an ATI card lying there, so I will try to reproduce it. I consider this a critical bug.