I have a Lenovo ThinkCentre M83 desktop and I have recently installed Ubuntu 20.04 on it. The Kernel version (gotten with the "uname -v" command) is #50~20.04.1-Ubuntu SMP Wed Feb 10 21:07:30 UTC 2021 I have done all the necessary software updates and everytime I shutdown the computer, there is a black screen right before it turns off that says "105.935711 reboot: Power down" and then the computer reboots instead of staying off.
I have no idea how to proceed or why a fresh install pranks me this way. Any ideas are welcome.
sudo journalctl -b -1 -e
will show the previous boot's log's end.