Check if it is muted or the sound volume is set too low.
In the [Select Playback Device] list, select the monitor you are currently using.
Try this
Checking the sound configuration in Windows
1. Click the sound icon at the right bottom of the taskbar on the wallpaper to launch the currently used player and the sound volume control slider.
Check if it is muted or the sound volume is set too low.
2. Click the player to use to launch the [Select Playback Device] list.
In the [Select Playback Device] list, select the monitor you are currently using.
This guide was created for all models, so the images or content may be different from your product.