Can you give this a try? https://kernel.ubuntu.com/~juergh/lp1907432/ Seems to do it for me, meaning the Pi 400 powers fully off.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1907432 Title: Raspberry Pi 400 Kernel Panic To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-raspi/+bug/1907432/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs