This is probably because for some reason startlubuntu was removed. See also this issue:
https://bugs.launchpad.net/ubuntu/+source/lubuntu-default- settings/+bug/1241958 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/941457 Title: startlubuntu is not a registered x-session-manager option To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lubuntu-default-settings/+bug/941457/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
