Indeed in my case it is not a guest issue. Indeed it is very serious to have a system systematically freeze on login from the installation.
But these auth.log error message have nothing to do with it: I realise that I have just the same auth.log on my regular machine working perfectly. My problem has probably nothing to do with this bug, except for part of aut.log but this seems irrelevant. -- 'Authentication failed' when switching to guest session on Intrepid Ibex https://bugs.launchpad.net/bugs/318364 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