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LG 34UM68 - User Manual

LG 34UM68
30 pages
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www.lg.com
Please read the safety information carefully before using the
product.
LED LCD Monitor (LED Monitor) Model List
Owner's Manual
LED LCD COMPUTER
MONITOR
(LED COMPUTER
MONITOR*)
*Disclaimer: LG LED Monitor applies LCD screen with LED back-
lights.This product is a computer monitor and not for television
purpose.
29UM68
34UM68

Table of Contents

Questions and Answers

  • K
    kathleennicholsonJul 28, 2025
    Why is nothing displayed on my LG 34UM68 screen?
    • B
      Brittany BrownJul 28, 2025
      There could be several reasons why nothing is displayed on your LG Monitor screen. First, check if the power cord is correctly plugged into the power outlet and ensure the power cable is connected, then press the power button. Also, verify that the connected input is enabled by going to Menu > Quick Settings > Input. If the monitor is in sleep mode, move the mouse or press any key on the keyboard. Make sure your computer is turned on. If the signals from your PC are out of the monitor's frequency range, see the Product Specification section of this manual to set the appropriate frequency. Finally, check the signal cable between the PC and the monitor, and reconnect it if necessary.
  • B
    brittanyharmonAug 2, 2025
    How to fix no sound from headphone port or speaker on LG 34UM68 Monitor?
    • J
      James TurnerAug 2, 2025
      If there is no sound from the headphone port or speaker on your LG Monitor, first try increasing the volume using the button on the monitor. If that doesn't work, set the audio output of the PC to the monitor you are using by going to Control Panel > Hardware and Sound > Sound and setting the monitor as the default device.
  • H
    hughescynthiaAug 7, 2025
    What to do if the display color is abnormal on my LG Monitor?
    • G
      George LeblancAug 7, 2025
      If the display color on your LG Monitor is abnormal, try setting the color to 24 bit (true color) or higher via Control Panel > Display > Settings > Color Quality in Windows. Ensure the signal cable is properly connected by reconnecting it or reinserting the PC's graphics card. Note that pixilated spots (red, green, blue, white, or black) may appear on the screen, which is normal for an LCD screen and not an error.
  • K
    Kayla SanchezAug 12, 2025
    What to do if the screen display is unstable and shaky on my LG 34UM68 Monitor?
    • C
      Carl KingAug 12, 2025
      If your LG Monitor's screen display is unstable, shaky, or images leave shadow trails, and the selected resolution is HDMI 1080i 60/50 Hz (interlaced), the screen may be flickering. Try changing the resolution to 1080P or the recommended resolution.
  • M
    maryespinozaAug 17, 2025
    Why is the OSD lock message being displayed on my LG Monitor?
    • J
      jonathan15Aug 17, 2025
      If the OSD lock message is displayed on your LG Monitor, go to Menu > General and set OSD Lock to Off.
  • J
    James BryantAug 22, 2025
    Why does my LG Monitor screen retain an image?
    • K
      Kevin BondAug 22, 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.

Summary

Assembling and Preparing the Monitor

Installing the Monitor

Guides through the process of assembling the stand and preparing the monitor for use.

Using the Monitor

Connecting to a PC

How to connect the monitor to a computer for display and audio output.

HDMI Connection

Steps for connecting the monitor via HDMI for video and audio signals.

DisplayPort Connection

User Settings

Activating the Main Menu

How to access and navigate the monitor's main menu using the joystick control.

Quick Settings Customization

Picture Settings

Optimizing screen display modes like Reader, Photo, Cinema, and Game for various uses.

Troubleshooting Common Issues

Display Issues

Troubleshooting common display problems like no image or out of range messages.

OSD Lock Issues

Screen Instability and Trails

Troubleshooting flickering, shaky displays, and shadow trails on the screen.

Color Display Problems

Driver and Plug & Play Issues

Addressing "Unrecognized monitor" messages and driver installation.

Audio Output Problems

Monitor Specifications

29 UM68 Specifications

Detailed technical specifications for the 29UM68 model, including screen, resolution, and power.

34 UM68 Specifications

Detailed technical specifications for the 34UM68 model, including screen, resolution, and power.

LG 34UM68 Specifications

General IconGeneral
Screen Size34 inches
Resolution2560 x 1080
Panel TypeIPS
Aspect Ratio21:9
Response Time5 ms
Brightness300 cd/m²
Contrast Ratio1000:1
AMD FreeSyncYes
Viewing Angle178° (H) / 178° (V)
Color GamutsRGB 99%
VESA Mount100 x 100 mm
Connectivity2 x HDMI, 1 x DisplayPort, Headphone Out
Refresh Rate60 Hz (75 Hz Overclocked)

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