So I've been using the ich9 audio sound device with tentative success so far (it's the only emulated device that gives usable audio from my basic testing), but there is an annoying skipping noise every few seconds and I'd heard that the most foolproof way of getting clear audio is to use the GPU's HDMI audio, which is what I'm trying now but I'm not having much success. I have a few questions:

1) do I have to remove the emulated sound device to use the HDMI audio properly?
2) I am using DisplayPort for the video, will this affect anything? I initially thought it just wouldn't work (I don't actually have anything connected via HDMI anywhere), but I still get audio it's just laggy and distorted. This is with my headphones plugged directly into the audio output of my monitor, nothing else but DP cables running to it.
3) what tweaks should I be using for this if any?

Ryzen 7 1800x, GTX 1080Ti x2, Arch host, Win10 guest

EDIT: MSI fix linked below works great for me! Flawless audio over DisplayPort to my monitor and then back to line in through Linux to my speakers. Fantastic.