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 Desktop Packages, which is subscribed to cups in Ubuntu. https://bugs.launchpad.net/bugs/1579905 Title: cups-browsed causes shutdown hang/delay in Ubuntu 16.04 Status in cups-filters package in Ubuntu: Triaged Bug description: Using the debug process found here https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1464917 I have determined that the cause of my 16.04 install's shutdown hang is cups- browsed. It was the only process running when I did a systemctl list- jobs in the VT9 shell. If I do sudo service cups-browsed stop and then shutdown, I do not get a hang. I have confirmed this on a virtual machine and a real system. If I disable cups-browsed from ever starting, my problem is fixed. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cups-filters/+bug/1579905/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
