How to detect what prevents my Open Core ryzentosh to fall a sleep?

[martincpt]

This beast on a x570m Pro4 mobo with the RX580 has a lot of power but not perform well when it's time to sleep. I've heard the number one problem is incorrect USB mapping but how can I know it's the real source of the problem?

When i hit the sleep button, the OS goes away and i get the dark screen just as expected, but then the computer just does not stop. The graphics card even start spinning its fans. Then no matter what i do, i cannot go back to macOS without rebooting.

I've tried enable debug logging in Open Core but i did not get any useful info. It just create a new log file on every boot which are obviously successful.

How the hell can i figure out what prevents this ryzentosh falling a sleep?

Any help much appreciated!