I'm running Zorin 17.2 core and for whatever reason no matter which way I try, it will not just shut down it immediately powers back on. I have fast boot off in the bios and I'm running the OS exclusively. Anyone have any ideas?
*double check fastboot is disabled
*disable wake-on-lan or any similar "wake" settings in bios
*run in terminal
journalctl | grep -i acpi
look for any errors or warnings
*look at shutdown logs to see if there's some issue
journalctl -b -1 -e
*test with an earlier kernel to see if kernel related
PS: a temporary workaround shut off is
sudo poweroff
also, if you on wayland , change to Xorg and see if the same
you did check your actual power management settings i suppose?