I updated a Thinkpad X1 Yoga (is detected as X1 Carbon 4th gen) from
Buster to Bullseye a few months ago and after the update the shutdown
reached status power off but didn't power off the machine. Tried
different shutdown command options from terminal, with always the same
result. As relatively new Linux Debian user with I fist thought that I
did something wrong or that my Thinkpad had a problem. I installed other
distro's and the problem disappeared... so I assumed it was a Debian issue.
But as I want to stay on Debian, I register to the Forum and fortunately
found this post.
I modified blacklisted tpm, as mentioned by Frank Löffler, and the
solution worked also for me!
Thanks a lot to Frank for his suggestion, and the others who confirmed
this solution, that made me confident, as new user, to made the change.
Best regards
Jean-Michel
