After some trial and error the apt-get command that eventually worked for me is:
sudo apt-get install -V libglapi-mesa-lts-raring libgl1-mesa-glx-lts- raring xserver-xorg-lts-raring xserver-xorg-input-all-lts-raring xserver-xorg-video-all-lts-raring libgl1-mesa-dri-lts-raring x11 -xserver-utils-lts-raring libglapi-mesa-lts-raring:i386 libgl1-mesa-dri- lts-raring:i386 libgl1-mesa-glx-lts-raring:i386 Make sure to carefully check the suggested changes before proceeding to ensure that no essential packages are removed! -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-lts-raring in Ubuntu. https://bugs.launchpad.net/bugs/1191563 Title: xserver-xorg-lts-raring cannot be installed due to unresolvable dependencies To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-lts-raring/+bug/1191563/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp