Consider the following scenario:
- You have two displays and one supports audio through an HDMI or DisplayPort connection.
- The desktop is only displayed on one display.
- You are playing a video on only one of the displays.
- You switch from the active display which supports video and audio to the other display using Win+P.
The audio can fail to switch from HDMI/DisplayPort display that supports audio to another supported audio device.
Restart the video.
It is recommended not to switch between displays while actively playing videos.