Ok... oddly enough adding Option "RenderAccel" "true" to all my Device sections in xorg.conf seems to fix this (at least for launchpad as a testcase)
-- Firefox causes massive Xorg CPU usage https://bugs.launchpad.net/bugs/38131 You received this bug notification because you are a member of Ubuntu Bugs, which is a direct subscriber. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
