I did as you asked, saved the output in a typescript file, which may be incomplete because the system DID a shutdown now :-)
Executed a "shutdown -P 15:30; echo $?" which had output '0' However, no wall messages were written... I attached the typescript file ** Attachment added: "Debug output" https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1512235/+attachment/4521409/+files/typescript -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1512235 Title: shutdown -P 23:30 is never scheduled Status in systemd package in Ubuntu: Incomplete Bug description: Any delayed shutdown command is never scheduled. In addition wall messages are not written. This is introduced with Ubuntu 15.10 Ubuntu 15.04 was fine. I use echo /sbin/poweroff | at 2330 as a work around. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1512235/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp