Actually from your other bug it looks like the version is version.xserver-xorg: xserver-xorg 1:7.5+6ubuntu7. Could you try running glxinfo in a terminal and post the output.
Actually from your other bug it looks like the version is version. xserver- xorg: xserver-xorg 1:7.5+6ubuntu7. Could you try running glxinfo in a terminal and post the output.