Ensure the monitor power is off before connecting the external monitor to the PC.
HDMI is a high-speed multimedia interface that can transfer uncompressed full digital audio and video signals.
LG Notebook PC supports either HDMI or SPDIF.
In some models, SRS may not work when you use HDMI.
Connect the HDMI cable to the PC and the external device (TV, monitor) that supports HDMI.
HDMI port transfers both video and audio simultaneously. So you don't need a separate audio connection.
Press [Fn]+[F7] to redirect the video output to the external device.
Switching screen output device by pressing [Fn]+[F7]
[Press [Fn] + [F7] to display the Toggle Screen menu. Then select the screen mode you want and press [Enter].
If you do not set Speaker as the default value after disconnecting the HDMI cable, the system may not produce any sound.
If a program was running already, you need to exit and restart the program for it to produce sound.