https://bugs.freedesktop.org/show_bug.cgi?id=38800
--- Comment #5 from Simon Farnsworth simon.farnsworth@onelan.co.uk 2011-06-30 10:10:36 PDT --- More digging - I changed drm.debug to 0xf, and I can see [22545.268466] "drm:evergreen_page_flip], Update pending now high. Unlocking vupdate_lock." in the dmesg output - I take it this means I'm trying to pageflip, but I'm simply failing to manage 60 frames per second?