I can't find an obvious explanation for this. Did you at some point use a PPA for your Mesa packages in the past?
** Package changed: xorg (Ubuntu) => mesa (Ubuntu) -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/2042367 Title: eglinfo device platform eglInitialize failed To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/2042367/+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