LG 34UM88C User Manual (English)

Questions and Answers:

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wilsonreginaldJul 27, 2025
What to do if nothing is displayed on my LG 34UM88C Monitor screen?
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  Donald WagnerJul 27, 2025
  If your LG Monitor screen is blank, ensure the power cord is securely plugged into the outlet and that the power cable is properly connected. Press the power button to turn on the monitor. Also, verify the connected input is enabled by navigating to Menu > Quick Settings > Input. If the monitor is in sleep mode, move the mouse or press a key. Confirm that your computer is also powered on. Check the cable and reconnect it.
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Tonya CruzJul 31, 2025
Why is my LG Monitor screen display unstable and shaky?
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  Cassandra JonesJul 31, 2025
  If your LG Monitor screen display is unstable, shaky, or images leave shadow trails, and the resolution is set to HDMI 1080i 60/50 Hz (interlaced), the screen may be flickering. Try changing the resolution to 1080p or the recommended resolution.
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Courtney FloresAug 5, 2025
Why is there no sound from the headphone port on my LG 34UM88C?
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  Jeffrey FieldsAug 6, 2025
  If you are experiencing no sound from the headphone port on your LG Monitor, first ensure that the headphone port connections are properly made. Then, try increasing the volume using the joystick. Finally, set the audio output of your PC to the monitor by going to Control Panel > Hardware and Sound > Sound and setting the Monitor as the default device.
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Tara ColeAug 10, 2025
Why is the display color abnormal on my LG 34UM88C Monitor?
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  carmenterryAug 10, 2025
  If the display color on your LG Monitor appears abnormal, try setting the color to 24 bit (true color) or higher through Control Panel > Display > Settings > Color Quality in Windows. Also, check the signal cable connection; reconnect the cable or reinsert the PC's graphics card to ensure it's properly connected.
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medinaglennAug 14, 2025
Why does the screen of my LG 34UM88C Monitor retain an image?
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  ericaballardAug 14, 2025
  Displaying a still image for a prolonged time may cause damage to the screen of your LG Monitor, resulting in the retention of the image. To extend the lifetime of the monitor, use a screensaver.
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michael71Aug 18, 2025
What to do if I see an "Unrecognized monitor, Plug and Play (VESA DDC) monitor found" message on my LG 34UM88C?
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  sandra81Aug 18, 2025
  If you see an "Unrecognized monitor, Plug and Play (VESA DDC) monitor found" message on your LG Monitor, install the display driver from the provided CD (or diskette) or download it from the LG website. Also, verify that your graphics card supports the Plug and Play function.
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Dale DavisAug 22, 2025
How to turn off the OSD Lock message on my LG Monitor?
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  James WilsonAug 23, 2025
  If you are getting an OSD Lock message on your LG Monitor, go to Menu > General and set OSD Lock to Off.