Guys, got new MB Gigabyte AORUS GA-AX370-GAMING 5 with Ryzen 1700 and having issue that when i boot into nvOC with one card i can see Ubuntu UI terminals etc...
Main card with Monitor plugged in is in
Soon as i add 2nd card i see ubuntu loading screen but when is should show the OS UI is just black screen

I can log via SSH and see that is mining , but i would like to keep option to see the "real" screen also...
Any clue where what to check?
https://imgur.com/a/lAJYZThanks
This is a common problem. When you added the 2nd GPU, it became GPU0 so the display is now showing on it instead of the 1st GPU that you installed. Just connect your monitor to it and you should see the desktop again.