LG 34UM68-P User Manual (English)

Questions and Answers:

C
Carrie WilsonJul 28, 2025
How to fix an LG Monitor when nothing is displayed on the screen?
- M
  Mrs. Heather KnightJul 28, 2025
  If nothing is displayed on your LG Monitor, try these steps: First, ensure the power cord is correctly plugged into the power outlet. Then, check the power cable connection and 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. Confirm that your computer is turned on. If signals from the PC are out of the monitor's frequency range, check the Product Specification section of this manual to set the appropriate frequency. Finally, check the cable and reconnect it.
A
Alexander DelgadoAug 1, 2025
What to do if there is no sound from the LG Monitor's headphone port or speaker?
- S
  Sarah Rogers MDAug 1, 2025
  If there is no sound from the headphone port or speaker of 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. On Microsoft Windows, go to Control Panel > Hardware and Sound > Sound and set the monitor as the default device.
T
Tina SmithAug 5, 2025
Why does my LG 34UM68-P have abnormal display colors and how can I fix it?
- M
  marilyn27Aug 5, 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. Also, try reconnecting the cable or reinserting the PC's graphics card. Note that pixilated spots (red, green, blue, white, or black) may appear on the screen, which is not an error related to the monitor's performance.
D
Derek HaynesAug 9, 2025
Why is my LG 34UM68-P screen display unstable and shaky?
- J
  Jeffrey HollandAug 9, 2025
  If your LG Monitor's screen display is unstable, shaky, or images leave shadow trails, it might be due to the resolution being set to HDMI 1080i 60/50 Hz (interlaced). Try changing the resolution to 1080P or the recommended resolution to resolve this issue.
I
isabellajohnsonAug 14, 2025
How to fix 'Unrecognized monitor, Plug&Play (VESA DDC) monitor found' message on LG 34UM68-P Monitor?
- C
  Cheryl JonesAug 14, 2025
  If you see an "Unrecognized monitor, Plug&Play (VESA DDC) monitor found" message on your LG Monitor, install the display driver from the display driver CD (or diskette) that came with your display. Also, make sure to check if the video card supports Plug&Play function.
E
Erica EvansAug 18, 2025
Why does my LG 34UM68-P Monitor screen retain an image, and how do I prevent it?
- C
  Chris MartinAug 18, 2025
  If your LG Monitor screen retains an image, it is likely due to displaying a still image for a prolonged time, which can cause damage. To extend the monitor's lifetime, use a screensaver.
X
xjimenezAug 22, 2025
How to turn off the OSD lock on an LG Monitor?
- A
  Amanda MelendezAug 22, 2025
  If the OSD lock message is being displayed on your LG Monitor, go to Menu > General and set OSD Lock to Off.

LG 34UM68-P Specifications

General

Screen Type	led
Tiltable	yes
Webcam	no
OS Compatibility	windows
Screen Size	34 inches
Panel Type	ips
Aspect Ratio	21:9
Resolution	2560 x 1080
Native Resolution	2560 x 1080
Refresh Rate	75hz
Horizontal Viewing Angle	178 degrees
Vertical Viewing Angle	178 degrees
Response Time	5 milliseconds
Brightness	300 candela per square meter
Contrast Ratio	5, 000, 000:1
Synchronization	freesync (amd adaptive sync)
HDR	yes
Built-In Speakers	yes
HDMI Ports	2
Power Consumption	43 watts
Depth with Stand	9.4 inches
Width with Stand	32.7 inches
Net Weight without Stand	17.6 pounds

Summary

License Information and Trademarks

HDMI Licensing Terms

Details the terms and logo usage for HDMI.

VESA and DisplayPort Compliance

Explains VESA and DisplayPort logos and trademarks.

MaxxAudio Trademark Information

Lists MaxxAudio trademarks and registered trademarks.

ErP Directive Compliance

Content specific to Europe market and ErP Directive.

Assembling and Preparing the Monitor

Product Components Checklist

Verifies included items and optional accessories in the box.

Component Safety Precautions

CAUTION notes regarding the use of product components.

Monitor Button and Joystick Overview

Description of monitor buttons and joystick functionality.

Joystick Operation Guide

Instructions on how to use the joystick for basic functions.

Input Connector Identification

Details of monitor input ports for different models.

Safe Monitor Handling Procedures

Instructions for safely moving and lifting the monitor.

Handling Precautions and Warnings

CAUTIONS and WARNINGS for screen, panel, and stand handling.

Assembling the Monitor Stand Base (29UM68)

Steps for assembling the stand base for the 29UM68 model.

Monitor Base Assembly Safety

CAUTION for protecting the screen during assembly.

Assembling the Monitor Stand Base (34UM68)

Steps for assembling the stand base for the 34UM68 model.

Monitor Assembly Precautions

CAUTIONS regarding screw tightening and carrying.

Cable Management and Holder Use

Instructions for arranging cables using the cable holder.

Adjusting Monitor Stand Height

Guide on how to adjust the screen's height.

Monitor Height Adjustment Safety

WARNING about finger safety during height adjustment.

Installing Monitor on a Table

Steps for placing and setting up the monitor on a table.

Electrical Safety During Setup

CAUTION concerning power cord and electrical shock risk.

Adjusting the Monitor Screen Angle

Instructions for tilting the monitor forwards or backwards.

Screen Angle Adjustment Safety

WARNING about finger safety when adjusting screen angle.

Kensington Lock Installation

Information on the optional Kensington lock feature.

Preparing for Wall Mount Installation

Steps for attaching the wall mount plate.

Wall Mounting the Monitor

Instructions for securely attaching the monitor to a wall.

Wall Mounting Safety Guidelines

CAUTIONS regarding screws, VESA standards, and installation.

Using the Monitor

Connecting Monitor to PC

Details on Plug and Play feature and PC connection.

DisplayPort Connection Guide

Instructions for connecting the monitor using a DisplayPort cable.

HDMI Connection Guide

Instructions for connecting via HDMI for PC and AV devices.

HDMI Connection Best Practices

Notes on using certified HDMI cables for compatibility.

Connecting AV Devices via HDMI

How to connect A/V devices using HDMI.

Connecting Headphones to Monitor

Instructions for using the headphone port.

Headphone Port Usage Notes

Recommendations for earphone types for optimal audio.

User Settings and Configuration

Accessing the Main OSD Menu

Steps to activate the On-Screen Display menu.

Overview of Main Menu Features

Explanation of core menu functions like Menu, Game Mode, Input.

Customizing Quick Settings

Adjusting Brightness, Contrast, Volume, Input, and Ratio.

Screen Aspect Ratio Settings

Options for adjusting the display aspect ratio (Wide, Original, etc.).

Picture-by-Picture (PBP) Mode

How to enable and configure the PBP feature.

Picture Mode Settings

Selecting and customizing picture modes (Reader, Photo, Game).

Advanced Picture Adjustments

Fine-tuning sharpness, response time, and color settings.

FreeSync Technology Guide

Information on enabling and using FreeSync for smoother visuals.

Sound Settings Overview

Accessing and configuring audio settings.

MaxxAudio Features and Settings

Details on MaxxAudio enhancements and manual settings.

General Settings Menu

Adjusting language, energy saving, and power LED.

Automatic Standby and Buzzer Settings

Configuring standby timer and buzzer alerts.

Resetting Monitor Settings

Steps to restore the monitor settings to default values.

Troubleshooting Common Issues

No Screen Display Troubleshooting

Solutions for when the monitor shows no image.

Resolving OSD Lock Message

How to unlock the On-Screen Display menu.

Addressing Image Retention Issues

Information on image sticking and preventive measures.

Fixing Screen Instability and Trails

Solutions for flickering or image ghosting.

Display Color Problems

Solutions for discolored or unstable display colors.

Unrecognized Monitor Message

Steps to resolve the 'Unrecognized monitor' message.

Troubleshooting No Sound

Solutions for audio problems via DisplayPort or HDMI.

Monitor Specifications

29UM68 Model Specifications

Detailed technical specifications for the 29UM68 model.

34UM68 Model Specifications

Detailed technical specifications for the 34UM68 model.

Supported Display Modes and Frequencies

Tables of resolutions, horizontal, and vertical frequencies.

HDMI Video Timing Standards

Preset video timing modes for HDMI input.

Monitor LED Indicator Status

Explains the meaning of different LED indicator colors.

Related product manuals

LG 34UM68-P User Manual

Table of Contents

Questions and Answers:

LG 34UM68-P Specifications

Summary

License Information and Trademarks

HDMI Licensing Terms

VESA and DisplayPort Compliance

MaxxAudio Trademark Information

ErP Directive Compliance

Assembling and Preparing the Monitor

Product Components Checklist

Component Safety Precautions

Monitor Button and Joystick Overview

Joystick Operation Guide

Input Connector Identification

Safe Monitor Handling Procedures

Handling Precautions and Warnings

Assembling the Monitor Stand Base (29UM68)

Monitor Base Assembly Safety

Assembling the Monitor Stand Base (34UM68)

Monitor Assembly Precautions

Cable Management and Holder Use

Adjusting Monitor Stand Height

Monitor Height Adjustment Safety

Installing Monitor on a Table

Electrical Safety During Setup

Adjusting the Monitor Screen Angle

Screen Angle Adjustment Safety

Kensington Lock Installation

Preparing for Wall Mount Installation

Wall Mounting the Monitor

Wall Mounting Safety Guidelines

Using the Monitor

Connecting Monitor to PC

DisplayPort Connection Guide

HDMI Connection Guide

HDMI Connection Best Practices

Connecting AV Devices via HDMI

Connecting Headphones to Monitor

Headphone Port Usage Notes

User Settings and Configuration

Accessing the Main OSD Menu

Overview of Main Menu Features

Customizing Quick Settings

Screen Aspect Ratio Settings

Picture-by-Picture (PBP) Mode

Picture Mode Settings

Advanced Picture Adjustments

FreeSync Technology Guide

Sound Settings Overview

MaxxAudio Features and Settings

General Settings Menu

Automatic Standby and Buzzer Settings

Resetting Monitor Settings

Troubleshooting Common Issues

No Screen Display Troubleshooting

Resolving OSD Lock Message

Addressing Image Retention Issues

Fixing Screen Instability and Trails

Display Color Problems

Unrecognized Monitor Message

Troubleshooting No Sound

Monitor Specifications

29UM68 Model Specifications

34UM68 Model Specifications

Supported Display Modes and Frequencies

HDMI Video Timing Standards

Monitor LED Indicator Status

Related product manuals