Nvidia shield only as a display

Dear Roon!

I’m started to use this wonderful program of yours, today. It’s all good except i can’t use my Nvidia Shield as a display only, couse my Denon reciver automaticly want to play music. I use an Audioengine D2 Dac with my computer to stream music from Tidal and this DAC connectied via cable in my reciver useing the CBL/SAT. I wanna listen to music via my cable on my reciver and enjoy the display withc is also conencted to my receiver.
How can i make this work?
I also wanna ask, do u have an opinion whitch settings are the best for my Dac?

Many Thanks:

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