I tried. In this case, instead of the black screen, I get thrown to the load log with the text:
Starting plymouth-quit-wait.service - Hold until boot process finishes up...
and everything hangs on this terminal (though I can open a Ctrl+Alt+F2 terminal).
So, some of your displays (connected to the motherboard) work in Qubes OS only, and the others (connected to the GPU) - only in games (or similar)? I’m fine with using integrated graphics if I decide to upgrade a PC to have it, but I’m curious how I can use the same displays in different activities then.
P.S.: I’ve created another discussion about 4060, let’s move there to discuss it to avoid duplicates, thx.