Sounds similar to https://bugs.debian.org/cgi- bin/bugreport.cgi?bug=763028 to me, although AFAIK rebooting is fine in my case.
** Bug watch added: Debian Bug tracker #763028 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=763028 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1427672 Title: System doesn't power off when shutting down To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1427672/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs