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The sound of the motherboard does not work due to the video card

Question asked by egorkhombak on Mar 27, 2020
Latest reply on Mar 28, 2020 by black_zion


My PC build looks like this:

processor: AMD Ryzen 7 2700x,

video: radeon sapphire rx 580,

RAM: HyperX Predator PC4-24000

I try to use two motherboards: asrock b450 steel legend and msi mpg x570 gaming plus. And on both the built-in audio did not work. I tried a lot of tips from the Internet. I even thought that my audio did not work at the hardware level and decided to try another motherboard, but i have same problem on x570 chipset too. I think it's because I use monitor with with integrated speakers which i connect by displayPort  and for some reason my rx580 audio conflict with motherboard audio. 

Could this be? What can you advice?

Screenshots with headphones connected to the back connectors