LG M2380D Owner's Manual page 29

Connecting with an HDMI to HDMI cable
Connect the HDMI output of the PC to the HDMI/
1
DVI IN1 or HDMI/DVI IN2 jack on the Monitor set.
2
Turn on the PC and the Monitor set.
3
Select HDMI 1 or HDMI 2 input source using the
INPUT button on the remote control.
!
NOTE
►Check that your HDMI cable is a high speed HDMI cable. If the HDMI cables are not high
speed, flickering or no screen display can result.
►If you want to use HDMI-PC mode, you must set the input label to the PC mode.
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