Can you please update to the xserver in this PPA and confirm it fixes the problem for you?
https://edge.launchpad.net/~ubuntu-x-swat/+archive/x-updates ** Package changed: mesa (Ubuntu) => xorg-server (Ubuntu) -- quadrapassel doesn't start: Failed to initialise clutter: Unable to select the newly created GLX context https://bugs.launchpad.net/bugs/561734 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
