Public bug reported: Switching back to upstart fixed this problem.
>From /etc/init/ttyS0.conf: # ttyS0 - getty # # This service maintains a getty on ttyS0 from the point the system is # started until it is shut down again. start on stopped rc RUNLEVEL=[12345] stop on runlevel [!12345] respawn exec /sbin/getty -L 115200 ttyS0 vt102 --autologin user ........ from dmesg bug might be an unrelated bug: [ 5.936703] systemd-logind[939]: Failed to start user service: Unknown unit: user@1000.service ......... Description: Ubuntu 15.04 Release: 15.04 ** Affects: systemd-shim (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to systemd-shim in Ubuntu. https://bugs.launchpad.net/bugs/1466270 Title: systemd automatic login failure To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd-shim/+bug/1466270/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs