it is notable that the guest session is ultimately specified by lightdm itself. however, i had no problems with xubuntu (utopic fwiw), so i can confirm that this is indeed a problem with how lightdm's guest session interacts with lxsession.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1273524 Title: lxsession guest session shows error message "no session for pid <pid for lxsession>" To manage notifications about this bug go to: https://bugs.launchpad.net/hundredpapercuts/+bug/1273524/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs