Comment 13 for bug 446632

mistr, thank you for doing a great job in isolating which package update introduced the problem. I should also thank Sami for figuring out what OpenGL call causes the crash. It is interesting that it was the mesa upgrade from the git snapshot to the stable version that introduced it. It was done fairly late in the release cycle with the justification that it would fix many bugs and hopefully not introduce new ones. You may read about this in the ubuntu-x mail archive at https://lists.ubuntu.com/archives/ubuntu-x/2009-October/thread.html . I guess I should have suspected that this bug was related since it was reported shortly after 7.6.0 hit the Karmic repositories.

This bug report should now have enough information to pass on to upstream. I'm not quite sure of which component of Mesa to use, since some who has commented here probably use the r200 driver (8500-9200), and some the radeon driver (up to 7500). The component should be either Drivers/DRI/r200 or Drivers/DRI/Radeon.

It would still be incredibly useful to have a full git-bisect to find out exactly which commit is triggering the crash. I think there are a couple of hundred commits between 2009-08-17 and the release of mesa 7.6.0 which should translate to 8-9 rounds of git-bisect. There is some information for how to do this at https://wiki.ubuntu.com/X/Bisecting .