LG 34GN850-B User Manual

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* LG LED Monitor applies LCD screen with LED

backlights.

Please read this manual carefully before operating

your set and retain it for future reference.

www.lg.com

34GN850

34GN85B

OWNER’S MANUAL

LG Gaming Monitor

(LED MONITOR*)

Questo manuale d’istruzione è fornito da trovaprezzi.it. Scopri tutte le offerte per LG 34GN850-B o

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Questions and Answers:

D
Dana HamptonJul 29, 2025
What to do if nothing is displayed on my LG 34GN850-B Monitor screen?
- L
  Latoya RileyJul 29, 2025
  If nothing is displayed on your LG Monitor screen, 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 in the monitor's settings (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 the issue persists, check the signal cable between the PC and the monitor to ensure it is properly connected. Finally, install the display driver from the LG website and verify that your graphics card supports Plug and Play.
A
Amy FernandezAug 5, 2025
Why is my LG 34GN850-B screen display unstable and shaky?
- S
  sandy24Aug 6, 2025
  If you are experiencing unstable and shaky screen display or shadow trails on your LG Monitor, 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.
A
Angelica HarrisAug 13, 2025
How to fix no sound from the headphone port on LG 34GN850-B?
- B
  Brian DanielsAug 13, 2025
  If you're not getting any sound from the headphone port on your LG Monitor, 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.
S
sandersonAug 21, 2025
Why does my LG Monitor screen retain an image?
- J
  johnsonlindaAug 21, 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.

LG 34GN850-B Specifications

General

Screen Size	34 inches
Panel Type	IPS
Response Time	1ms (GtG)
Aspect Ratio	21:9
Contrast Ratio	1000:1
Color Support	1.07 billion colors
HDR	HDR10
Adaptive Sync	NVIDIA G-SYNC Compatible, AMD FreeSync Premium
Color Gamut	DCI-P3 98%
Curvature	Flat
Viewing Angle	178°/178°
Adjustability	Height, Tilt, Pivot
VESA Mount	100 x 100 mm
Resolution	3440 x 1440
Brightness	400 nits
Ports	2x HDMI, 1x DisplayPort, 2x USB 3.0
Refresh Rate	144Hz (overclockable to 160Hz)
Weight	7.6 kg (with stand)

Summary

Assembling and Preparing the Monitor

Supported Drivers and Software

Instructions for downloading and installing the latest drivers and software.

Product Overview and Controls

Description of monitor buttons and how to use the joystick control for basic functions.

Monitor Handling and Placement

Guidelines for safely moving, lifting, and handling the monitor to prevent damage.

Installation and Stand Adjustments

Steps for installing the monitor on a table and adjusting its stand height and angle.

Wall Mounting Guide

Instructions for installing the wall mount plate and mounting the monitor on the wall.

Using the Monitor

Connecting to a PC

Guide to connecting the monitor to a computer for display output.

HDMI Connection

DisplayPort Connection

Connecting AV Devices

User Settings and Menu Navigation

Activating the Main Menu

Main Menu Features Overview

Menu Settings Categories

Game Mode Options

Overclock Settings

Adaptive-Sync and Black Stabilizer

Information on Adaptive-Sync and Black Stabilizer for smooth gaming visuals.

Picture Adjustments

Black Level and DFC Settings

Input Selection and Aspect Ratio

General Settings

Advanced General Settings

Troubleshooting Common Issues

No Signal or Display Issues

Troubleshooting steps for when the screen is blank or displays no signal.

Feature Availability Issues

Screen Image Retention

Addressing issues with image sticking or retention on the screen.

Display Instability and Shaking

Troubleshooting unstable display, flickering, or shadow trails.

Display Color Abnormalities

Audio Output Problems

Product Specifications

LCD Screen and Resolution Details

Power and Environmental Specifications

Physical Dimensions and Weight

Factory Support Mode

HDMI Timing (Video)

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