Same here with a radeon Mobility FireGL 9000 (RV250). Latest xorg-edgers and NEW_FAIR_SLEEPERS as suggested above did not help.
See https://bugs.freedesktop.org/show_bug.cgi?id=24074. The problem disappear when downgrading libgl1-mesa-dri to 7.5 or 7.4, so it really seems to be mesa related. Anything I tried in 7.6 and 7.7 branches was horribly slow and buggy for me. ** Bug watch added: freedesktop.org Bugzilla #24074 https://bugs.freedesktop.org/show_bug.cgi?id=24074 -- blank screen with compiz and mesa 7.6 https://bugs.launchpad.net/bugs/420599 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs