Comment 1 for bug 1169020

This should work when running as root. I can add some more logic, so that if the user that is trying to run mir is logged in any VT, then mir will be able to find the current VT, regardless of whether it is the VT the user is logged in. I think this should allow you to work as before (of course, proper VT switching will still not work if your run as a normal user).