Issues appears to be related to the power button applet in the panel (sorry if the terminology is incorrect) and not with the kernel actually being able to shutdown/restart/hibernate the system. Also, submitter indicated they were using budgie in comment #15.
** Package changed: linux (Ubuntu) => budgie-desktop (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1869531 Title: Shutdown, restart, and hibernate do not work from "power-button" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/budgie-desktop/+bug/1869531/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs