In my ubuntu 12.04.1, the same bug displayed. ps -A -ostat,ppid,pid,cmd | grep -e '^[Zz]' Z 2526 2557 [lightdm-session] <defunct>
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/990661 Title: lightdm zombie process created while press escape button on Login screen To manage notifications about this bug go to: https://bugs.launchpad.net/lightdm/+bug/990661/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs