Instead it's probably an issue with reboot parameters. I'm trying to figure out, how to edit them...
The developer gave me that link for reboot parameters, but I don't know where to use them inside LE:
linux/kernel-parameters.txt at master · torvalds/linux
Linux kernel source tree. Contribute to torvalds/linux development by creating an account on GitHub.
github.com
Quote from developer:
QuoteNo idea what's the issue is in this case and last time I had to deal with such issues was lots of years ago with an old BIOS (non-UEFI) PC - solution was to add some kernel command line parameter to use a different poweroff function (ACPI instead of BIOS or vice versa - can't quite remember).