https://bugs.freedesktop.org/show_bug.cgi?id=28341
--- Comment #7 from Andy Furniss lists@andyfurniss.entadsl.com 2010-06-14 16:56:56 PDT --- (In reply to comment #6)
possibly also related to bug 28383 and bug 28410.
I am currently running with a patch that fixes 28383 but have just noticed that the mesa demo ipers does not render properly (with or without patch) - it's flashing until I reduce the LOD enough that the fps gets capped to refresh rate when it then renders OK.
It renders OK with swrast and if I boot an older kernel that uses the old vsync.