I am getting the same bug. hopefully downgrading libxrandr2 and libdrm2 will fix this, however I am not quite sure how to do that at the console...
-- beryl manager causes 100% on load and renders the desktop useless after Feb 21 feisty updates https://launchpad.net/bugs/86718 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs