Hi John,
So I have 2 34" monitors, in my display settings I have it so it's like the following
1# AW 34" ( Main Display)
2# Dell 34"
3# Marantz receiver (shows as a display)
I did the same as you mentioned, with 2/3 (use "Duplicate these displays"), but still only shows 60 Hz on the AW34.
Even though the receiver is connected, if I just select "show only 1", the receiver does not show and no sound.
To answer your questions, yes I use 5.1 sound using good speakers, which is why I use the receiver.
I'm assuming the headless HDMI still connects the 1080ti HDMI port? if so what difference does it make?
If I use optical, I assume I will have the purchase a sound card?
Thanks...