In fact, this is not a bug - but a misunderstanding on my side about the difference between "halt" and "poweroff" together with a change in behaviour of "halt".
If I use "poweroff", the computer is correctly powered off. If I use "halt", the computer is "halted" but not powered off -- probably, as it should be. Formerly, "halt" caused the computer to be powered off as well. ** Changed in: linux (Ubuntu) Status: Confirmed => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1054472 Title: Failure to switch off power after system shutdown To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1054472/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs