I put your comment and logs to the upstream bug concerning radeon 7000 and mobility m6 series, reopening the upstream bug at the same time. If you can, please follow if there are any further questions there in the future...
-- r100 lockups during/after dri (radeon 7000, mobility m6) https://launchpad.net/bugs/15219 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
