Surround sound issues

[TheSinOfLust]

*Hi its my first topic on any forum so sorry in advance 
Well my issue is the fact that i am using sony str-dn1080 for 7.1 dolby atmos 
for some reason i can get it to work as surround only threw HDMI but that create fantom screen thats using resources (tested in games by disconecting it)

i would just plug it in screen but i am using 3 screens (Displayport) Eyefinity screens are capable of 144hz but with hdmi only 60hz

so is it possible to use the HDMI for audio only that windows will not see it as a screen or by any chance connect it in diffrent way 
i tried to connect it by optical cable but windows detected it as stereo and i could not change it 

my pc spec:

Intel Core i7 2700k

ASUS P9Z68-V LX

Kingston HyperX 4 x 4GB

AMD Radeon RX 6700(non xt) (before i was using GTX1060 had the same issue)

Screens: Philips 272E1GAJ

[circeseye]

unfortunately no. windows will always detect hdmi and the avr as a video source. maybe one of these decades we will be able to set a hdmi out as audio only but not as of now

[BuzzingBee]

I was hoping AVR would start including USB input to support at least 7.1 LPCM, now that multichannel analog is pretty much dead. Sucks we're relying on HDMI for surround sound and having to deal with extra display. 

 

One of solution (which I'm doing now) is to get second GPU of different brand so that drivers don't conflict. For example I have RX 6800XT as main GPU and GT 710 as second GPU, then I use HDMI from GT 710 to AVR for audio. Yeah it still has extra display but it won't be caught onto Eyefinity from three main GPU displays. And for that fourth display I decided to get 10 inch screen for PC monitoring. 

[TheSinOfLust]

9 hours ago, circeseye said:

unfortunately no. windows will always detect hdmi and the avr as a video source. maybe one of these decades we will be able to set a hdmi out as audio only but not as of now

Thanks for quick answer that's sad tho maybe i should write to amd customers support directly 

[cmndr]

The solution I've settled on for myself

Computer -> TV -> AVR via HDMI ARC

 

It works fairly well without too many hassles or all that much BS. 

The only real downside is that the TV doesn't auto power off in a sensible manner.