https://bugs.freedesktop.org/show_bug.cgi?id=37781
--- Comment #2 from Michel Dänzer michel@daenzer.net 2011-05-31 02:34:43 PDT --- (In reply to comment #2)
With default packages in ubuntu natty 11.04, there is a problem where running and exiting a fullscreen application with compiz running causes major redraw/refresh flickering issues. They go away after restarting compiz, but start again reliably after exiting any fullscreen GL app.
Sounds like bug 35452.
Here are the bisect results:
2a95568f64a6641a49a2d4855272e9be2ac2db6d is the first bad commit commit 2a95568f64a6641a49a2d4855272e9be2ac2db6d Author: Kenneth Graunke kenneth@whitecape.org Date: Wed May 11 07:54:57 2011 -0700
i965: Avoid register coalescing away MATH workarounds on Ivybridge.
As Dave Airlie pointed out on IRC, that commit can't possibly have any effect on r300g.
As a side note, the problem is actually worse in mesa current master, where it does not require triggering, but instead is flickering right after X/compiz start the first time.
Sounds like a different problem. Try current Git again first, there have been some fixes for intermittent Gallium texture format related regressions.