Please could you confirm if direct rendering is working on your display (glxinfo | grep rendering). If you are using the "Switch User" feature, direct rendering only works for the first user to log in. If direct rendering is not working, the Xorg.log file for your display may contain some clues as to why.
-- Celestia is slow https://bugs.launchpad.net/bugs/247762 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