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LG 27BK67U-B 27" 16:9 4K UHD FreeSync IPS Monitor User Manual

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Do you see an "unrecognized monitor, plug&play (VESa DDC) monitor found" message?

Have you installed the display driver?

Be sure to install the display driver from our web site:

http://www.lg.com

.

Make sure to check if the video card supports Plug&Play function.

No sound from the headphone port or speaker.

are images displayed using DisplayPort or HDMI input
without sound?

Try increasing the volume using the button on the monitor.

set the audio output of the PC to the monitor you are using. On Microsoft windows, go to Control Panel > Hardware and sound > sound > set the monitor as default
device.

NoTE

LED can be lighted with set OsD Menu.

settings – General – Power LED – On