yeah, setting Virtual too high can often slow down performance. It's worth a try setting Option "Virtual" in your xorg.conf, to exactly what you need.
-- [R520] xserver-xorg-video-ati 6.9.0 causes blank screen on r500 https://bugs.launchpad.net/bugs/252383 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