There is no sound from an external display after HDMI connection
If you have connected an external display using an HDMI cable but no sound is output, you can solve the problem by changing the default output device to the one with HDMI.
Changing in Windows settings
Note: The name of the HDMI-connected device may be displayed differently.
Changing the default output device in the Sound Control Panel
If there is still no sound after you follow the steps above, reinstall your graphics and sound drivers through [Samsung Update].
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