After several reboots the issue disappeared after approx. 6 reboots There are some console messages that were not there before. Machine is too fast for me to read. No traces in dmesg. I will try to investigate further but for now, the issue resolves itself
** Changed in: linux (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1175491 Title: Shutdown und Restart broken To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1175491/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs