LG 34GK950F - User Manual

Questions and Answers

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Benjamin JamesAug 2, 2025
What to do if there is no sound from the headphone port on my LG 34GK950F Monitor?
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  Mary TorresAug 2, 2025
  If you're not getting any 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 you are using by going to Control Panel > Hardware and Sound > Sound on Microsoft Windows and setting the Monitor as the default device.
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dwilcoxAug 7, 2025
Why is my LG 34GK950F Monitor screen display unstable and shaky?
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  Tracy RichardsAug 7, 2025
  If your LG Monitor's screen display is unstable or shaky, or if images leave shadow trails, and the resolution is set to HDMI 1080i 60/50 Hz (interlaced), the screen may be flickering. Change the resolution to 1080p or the recommended resolution to resolve this issue.
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ericnicholsAug 12, 2025
Why is the display color on my LG 34GK950F Monitor abnormal?
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  David PerryAug 13, 2025
  An abnormal display color on your LG monitor can often be resolved by setting the color to 24 bit (true color) or higher via Control Panel > Display > Settings > Color Quality in Windows. Also, check the signal cable to ensure it is properly connected; try reconnecting it or reinserting the PC's graphics card. Sometimes, pixilated spots (red, green, blue, white, or black) may appear, which is normal for an LCD screen and not indicative of an error or performance issue.
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Adam GrantAug 17, 2025
Why does my LG 34GK950F Monitor screen retain an image?
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  Bethany AcostaAug 18, 2025
  If your LG Monitor screen retains an image, it may be due to displaying a still image for a prolonged time, which can cause damage. To extend the monitor's lifespan, use a screensaver.
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florestaylorAug 22, 2025
How to enable disabled features on LG 34GK950F Monitor?
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  Susan SmithAug 23, 2025
  If some features on your LG Monitor are disabled, it's possible that the OSD is locked. To unlock it, go to Settings > General and set OSD Lock to Off.
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anthonyweaverOct 27, 2025
How to fix LG 34GK950F when nothing is displayed on the screen?
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  Ashley BakerOct 27, 2025
  If your LG Monitor screen is blank, start by ensuring the power cord is securely plugged into the outlet and that the power cable is properly connected. Press the power button. Also, verify that the correct input is enabled in the monitor's Settings under the Input section. If the monitor is in sleep mode, try moving the mouse or pressing a key on the keyboard. Make sure your computer is turned on. If the issue persists, check the signal cable between the PC and the monitor, ensuring it's properly connected. If the signals transferred from the PC are out of the monitor's recommended frequency range, check the Product Specification section of this manual to set the appropriate frequency. It is also recommended to install the display driver from the LG website and confirm that your graphics ...

Summary

ASSEMBLING AND PREPARING

Supported Drivers and Software

Information on downloading and installing necessary drivers and software for the monitor.

Product and Button Description

Overview of the monitor's physical components and the joystick button functions for operation.

How to Use the Joystick Button

Detailed instructions on operating the monitor using the joystick button for various functions.

Moving and Lifting the Monitor

Instructions and precautions for safely moving and lifting the monitor to prevent scratches and damage.

Installing on a Table

Steps and guidelines for placing the monitor upright on a table with proper ventilation clearance.

Adjusting the Stand Height

Details on how to adjust the monitor's stand height for ergonomic viewing.

Adjusting the Angle

Instructions on how to adjust the screen's tilt angle for a comfortable viewing experience.

Tidying up Cables

Guidance on using the cable holder to neatly arrange and manage monitor cables.

Using the Kensington Lock

Instructions for attaching and using a Kensington security lock for physical security.

Installing the Wall Mount Plate

Steps for attaching a wall mount plate to the monitor, including screw specifications.

Installing on the Wall

Guidelines for securely mounting the monitor on a wall with proper clearance and VESA compatibility.

USING THE MONITOR

Connecting to a PC

Guide on connecting the monitor to a computer using Plug and Play functionality for seamless setup.

HDMI Connection

Instructions for transmitting digital video and audio signals from a PC to the monitor via HDMI cable.

DisplayPort Connection

Details on connecting the monitor to a PC using a DisplayPort cable for high-quality video and audio.

Connecting Peripherals

Connects USB devices, such as keyboards, mice, or external drives, to the monitor's USB hub.

Connecting Headphones

Connect headphones or external audio devices to the monitor's headphone port for audio output.

USER SETTINGS

Activating the Main Menu

Steps to access and navigate the monitor's main menu using the joystick button.

Main Menu Features Overview

Explanation of the main menu options including Input, Power Off, Settings, Game Mode, and Exit.

Game Mode Configuration

Guide to selecting and customizing game modes like FPS, RTS, Vivid, and Gamer presets for optimal gaming.

Game Adjustments

Details on optimizing gaming performance with features like Motion Blur Reduction, FreeSync, and Response Time.

Picture Adjustments

Configuration options for screen appearance including Brightness, Contrast, Gamma, and Color Temperature.

Input and Ratio Settings

How to select the input source and adjust the screen's aspect ratio (Full Wide, Cinema, etc.).

General System Settings

Settings for language, energy saving, power LED, automatic standby, HDMI/DP compatibility, and OSD lock.

TROUBLESHOOTING

Nothing is displayed on the screen

Troubleshooting steps for when the monitor screen remains blank or shows no signal.

Some features are disabled

Resolving issues where certain menu functions or features are unavailable or locked.

The screen retains an image

Addressing image persistence or screen burn-in issues caused by static images.

Screen display is unstable and shaky

Solutions for flickering, unstable, or shaky screen images due to resolution or frequency mismatches.

The display color is abnormal

Troubleshooting steps for incorrect, discolored, or unstable color display issues.

No sound from the headphone port

Resolving problems with audio not playing through the monitor's headphone jack.

PRODUCT SPECIFICATION

LCD Screen Specifications

Details on the monitor's LCD panel type, color depth, pixel pitch, and resolution capabilities.

Operating Frequency

Technical data on horizontal and vertical frequencies supported via HDMI and DisplayPort.

Input Connectors and Power Sources

Information on available input ports (HDMI, DP, USB) and the monitor's power rating.

AC;DC Adapter Details

Specifications for the external AC/DC power adapter, including model and output details.

Environmental and Physical Dimensions

Operating and storage environmental conditions, along with the monitor's physical dimensions and weight.

Factory Support Mode

List of preset display modes with corresponding horizontal and vertical frequencies for factory support.

HDMI Timing (Video)

Table detailing HDMI timing formats, preset modes, and supported vertical frequencies for video.

LG 34GK950F Specifications

General

Screen Size	34 inches
Resolution	3440 x 1440
Panel Type	IPS
Aspect Ratio	21:9
Brightness	400 cd/m²
Response Time	5ms (GtG)
Color Gamut	DCI-P3 98%
Contrast Ratio	1000:1
Viewing Angle	178°/178°
HDR	HDR10
VESA Mount	100 x 100 mm
Refresh Rate	144Hz
Ports	2x HDMI, 1x DisplayPort, 2x USB 3.0
Adaptive Sync	AMD FreeSync 2