https://bugs.freedesktop.org/show_bug.cgi?id=28771
--- Comment #9 from Andy Furniss lists@andyfurniss.entadsl.com 2010-07-16 06:37:58 PDT --- (In reply to comment #8)
I can confirm that setting vblank_mode=0 in drirc doesn't work here either.
Can't reproduce the other problem though, window or fullscreen doesn't make a difference.
Maybe the wait for vline type vsync I get is r600 specific.