Thank you for suggesting some workarounds. Well, I've logged in on one of the virtual consoles (no X) and deleted the sessions. That took care of it for very few reboots, but the problem rapidly came back.
I'm also interested in making sure this is properly fixed. Is there any more information we can gather? -- Multiple instances of xfdesktop started simultaneously https://bugs.launchpad.net/bugs/329616 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