ayi Try a monitor reset from the OSD menu. Make sure the volume is turned up in the same. Perhaps reinstall the GPU drivers. Run sound troubleshooter in windows on the device in question too. Looks like a reset fixes it: https://forum-en.msi.com/index.php?threads/mpg-321urxde-qd-oled-fw-020-no-sound.416004/ Try things listed in this post.
