LG 34WQ75X-B - User Manual

Questions and Answers

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Daniel VillaJul 30, 2025
Why is nothing displayed on my LG 34WQ75X-B Monitor screen?
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  Michael RoyJul 30, 2025
  There could be several reasons why nothing is displayed on your LG monitor's screen. First, ensure the power cord is correctly plugged into the power outlet and that the power cable connection is secure, then press the power button. Also, verify that the connected input is enabled in the monitor's settings under the Input section. This issue can also occur if the signal cable between your PC and the monitor is either missing or disconnected, so check the cable and reconnect it securely. Finally, the signals transferred from the PC (graphics card) might be out of the monitor's horizontal or vertical frequency range. Refer to the Product Specification section of the manual to set the appropriate frequency.
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Katherine NguyenAug 4, 2025
Why is there no sound from the headphone port on my LG 34WQ75X-B Monitor?
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  Joel VillanuevaAug 4, 2025
  If there is no sound from the headphone port on your LG monitor, first ensure that the headphone port connections are made properly. If the connections are correct, try increasing the volume using the joystick. Also, make sure to set the audio output of the PC to the monitor you are using. Note that the settings may differ depending on the operating system you use.
E
Elizabeth WilliamsAug 10, 2025
What to do if my LG Monitor screen display is unstable and shaky?
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  Timothy SmithAug 10, 2025
  If your LG monitor's screen display is unstable or shaky, or if images displayed on the monitor 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. Also, not setting the graphics card to the recommended (optimal) resolution may result in blurred text, a dimmed screen, a truncated display area or misalignment of the display.
P
Patricia StoneAug 17, 2025
How to fix an "Unrecognized monitor, Plug and Play (VESA DDC) monitor found" message on my LG 34WQ75X-B Monitor?
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  Julie OsborneAug 17, 2025
  If you see an "Unrecognized monitor, Plug and Play (VESA DDC) monitor found" message, be sure to install the display driver from the LG website. Also, make sure to check if the graphics card supports Plug and Play function.
K
Kelly LunaAug 23, 2025
How to enable disabled features on LG 34WQ75X-B?
- L
  Lisa JordanAug 23, 2025
  If some features are disabled on your LG monitor, the OSD might be locked. To enable the features, disable OSD Lock in the General settings.

Summary

Assembling and Preparing

Safety and Assembly Precautions

Key safety warnings and precautions for assembling the monitor and using genuine LG components.

Product and Button Description

Joystick Button Operation

How to use the joystick button for basic monitor functions like power on/off and volume control.

Moving and Lifting the Monitor

Safe Handling Guidelines

Instructions to prevent monitor damage during moving and lifting, including grip points and orientation.

Installing on a Table

Adjusting Monitor Stand

Stand Height Adjustment

Steps for adjusting the monitor's stand height safely, with warnings about finger injury.

Screen Angle Adjustment

How to adjust the screen's viewing angle forward or backward for comfort.

Security and Mounting

Wall Mounting Specifications

Wall Mounting Cautions

Safety warnings regarding electric shock, force application, VESA standards, and screw length for wall mounting.

Connecting to a PC

HDMI Connection

Transmit digital video and audio signals from your PC to the monitor via HDMI.

DisplayPort Connection

USB-C Connection

Connecting AV Devices

Connecting Peripherals

USB Device Connection

USER SETTINGS

Activating the Main Menu

Instructions on how to access and navigate the monitor's On-Screen Display (OSD) menu.

Main Menu Features

Menu Navigation

Quick Settings

Input Settings

Picture Mode Settings

Picture Adjustments

Game Adjustments

Color Adjustments

General Settings

User-defined Key Settings

TROUBLESHOOTING

No Display Issues

Troubleshoot issues related to power, LED status, input signals, and 'No Signal' or 'Out of Range' messages.

Display Instability

Address flickering, blurred text, or misaligned displays due to resolution or graphics card settings.

Image Sticking

Understand image sticking and use screensavers to extend monitor lifespan and prevent damage.

Disabled Features

Troubleshoot disabled functions, often caused by OSD Lock being enabled in General settings.

Unrecognized Monitor Message

Resolve 'Unrecognized monitor' errors by installing display drivers and checking graphics card compatibility.

No Sound Issues

Troubleshoot audio issues by checking headphone connections, volume, and PC audio output settings.

PRODUCT SPECIFICATION

LG 34WQ75X-B Specifications

General

Screen Size	34 inches
Aspect Ratio	21:9
Panel Type	IPS
Refresh Rate	60 Hz
Brightness	300 cd/m²
Color Gamut	sRGB 99%
HDR Support	HDR10
USB-C Power Delivery	Yes
Contrast Ratio	1000:1
VESA Mount	100 x 100 mm
Resolution	3440 x 1440
Response Time	5 ms
Connectivity	HDMI, DisplayPort, USB-C
Viewing Angle	178°
Ports	2x HDMI, DisplayPort, USB-C, 2 x USB 3.0
Adjustability	Height, Tilt, Pivot