LG 55LM5800 User Manual page 86

PC connection problem (Only for models supporting PC
❐
connection)
ꕢ The screen display is not on after connecting to the computer.
• Check that the computer and TV are securely connected.
• Check if the resolution is correctly set for PC input.
• To use the TV as a secondary monitor, check that the connected desktop or laptop
supports dual monitor displays.
ꕢ There is no sound after connecting the computer with the HDMI cable.
• Check with the video card manufacturer to ensure it supports HDMI voice output.
(Video cards manufactured in DVI format require connection of a separate sound
cable.)