Fix is to assure via systemd that cups-browsed is never running without CUPS running, especially to let cups-browsed always shut down before CUPS.
This can be reached by adding the line Requires=cups.service to the [Unit] section of /lib/systemd/system/cups-browsed.service and then to run sudo systemctl daemon-reload to make the change already working in the current session. Please test. ** Package changed: cups (Ubuntu) => cups-filters (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1579905 Title: cups-browsed causes shutdown hang/delay in Ubuntu 16.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cups-filters/+bug/1579905/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs