LG UltraGear 27GR75Q-B User Manual (English)

Questions and Answers:

M
Mr. Jack Montoya DDSJul 29, 2025
How to fix LG UltraGear 27GR75Q-B Monitor when nothing is displayed on the screen?
- N
  Nicole HowardJul 29, 2025
  If nothing is displayed on your LG Monitor, try these steps: * Ensure the power cord is correctly plugged into the power outlet. * Check the power cable connection and press the power button. * 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. Also, check if the computer is turned on. * If signals from the PC are out of the monitor's recommended range, see the Product Specification section of this manual to set the appropriate frequency. * Check and reconnect the cable. * Install the display driver from the LG website (http://www.lg.com) and ensure the graphics card supports Plug and Play.
B
brewerdawnAug 3, 2025
What to do if there is no sound from the headphone port on LG Monitor?
- H
  Hailey NguyenAug 3, 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. * Try increasing the volume using the joystick. * Set the audio output of the PC to the monitor you are using. In Microsoft Windows, go to Control Panel > Hardware and Sound > Sound and set the Monitor as the default device.
C
Cynthia RasmussenAug 8, 2025
Why is my LG UltraGear 27GR75Q-B screen display unstable and shaky?
- S
  Steven AlvarezAug 8, 2025
  If your LG Monitor's screen display is unstable, shaky, or images leave shadow trails, and if 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
Matthew MccormickAug 12, 2025
Why is the display color abnormal on my LG UltraGear 27GR75Q-B?
- K
  Kristine MartinAug 13, 2025
  If the display color on your LG Monitor is abnormal, here are a few things to try: * Set the color to 24 bit (true color) or higher by going to Control Panel > Display > Settings > Color Quality in Windows. * Check if the signal cable is properly connected. Try reconnecting the cable or reinserting the PC's graphics card. * Note that sometimes, this is not an error and is not related to the monitor's performance.
E
Eileen HinesAug 18, 2025
How to enable disabled features on LG UltraGear 27GR75Q-B?
- J
  John DaltonAug 18, 2025
  If some features are disabled on your LG Monitor, go to Settings > General and set OSD Lock to Off.
M
Matthew GonzalezAug 23, 2025
Why does my LG UltraGear 27GR75Q-B screen retain an image?
- C
  cwalkerAug 23, 2025
  Displaying a still image for a prolonged time may cause damage to the screen, resulting in the retention of the image. To extend the lifetime of your LG monitor, use a screensaver.

LG UltraGear 27GR75Q-B Specifications

General

Screen Size	27 inches
Resolution	2560 x 1440 (QHD)
Panel Type	IPS
Refresh Rate	165Hz
Response Time	1ms (GtG)
Aspect Ratio	16:9
Contrast Ratio	1000:1
Adaptive Sync	AMD FreeSync Premium
Ports	2x HDMI, 1x DisplayPort, 1x Headphone Out
HDR Support	HDR10
VESA Mount	100 x 100 mm
Brightness	300 cd/m²
Color Gamut	sRGB 99%
Viewing Angle	178°/178°

Summary

LICENSE

OPEN SOURCE SOFTWARE NOTICE INFORMATION

ASSEMBLING AND PREPARING

Supported Drivers and Software

Product and Button Description

How to Use the Joystick Button

Basic Functions

Explains how to use the joystick for power, volume, and brightness control.

Moving and Lifting the Monitor

Installing on a Table

Adjusting the Stand Height

Adjusting the Angle

Pivot Feature

Using the Kensington Lock

Installing the Wall Mount Plate

Installing on the Wall

USING THE MONITOR

Connecting to a PC

Instructions for connecting the monitor to a personal computer via various interfaces.

DisplayPort Connection

Connecting AV Devices

HDMI Connection

Details on establishing an HDMI connection for transmitting digital video and audio signals.

Connecting Peripherals

Connecting Headphones

How to connect headphones to the monitor via the headphone port.

USER SETTINGS

Activating the Main Menu

Instructions on how to access and navigate the monitor's main menu using the joystick.

Main Menu Features

Overview of the main menu options available, including Input, Power Off, and Settings.

User Settings Menu

Menu Settings

Guide to accessing and configuring various settings like Game Mode, Game Adjust, Picture Adjust, Input, and General.

Game Mode Settings

Game Mode Options

Details on various game modes like Gamer 1, FPS, RTS, Vivid, Reader, HDR Effect, and Color Weakness.

Game Adjust Settings

Motion Blur Reduction

Adjusts motion blur to minimize blur in fast-moving videos for clearer images.

FreeSync Premium / Adaptive-Sync

Synchronizes refresh rate to reduce screen tearing and stuttering for smoother visuals.

Black Stabilizer

Enhances visibility in dark scenes by adjusting black contrast levels for better distinction.

Response Time

Sets the response time for displayed pictures based on the speed of the screen.

Crosshair

Provides a mark on the center of the screen for First Person Shooter (FPS) games.

FPS Counter

Displays the actual frame rate received at the input on the screen.

Game Reset

Returns game settings to their default configurations.

Picture Adjust Settings

Brightness and Contrast

Controls screen brightness and adjusts the contrast ratio for optimal picture quality.

Sharpness and Gamma

Adjusts screen sharpness and gamma settings to enhance image detail and depth.

Color Temperature and R/G/B

Sets screen colour to desired tone and customizes picture colour using RGB adjustments.

Six Color and Black Level

Adjusts hue, saturation, and black levels for precise colour control and dark scene visibility.

DFC and Picture Reset

Manages automatic brightness adjustment and allows resetting picture settings to default.

Input Settings

Input List and Aspect Ratio

Selects input mode and adjusts the screen's aspect ratio for widescreen or 4:3 display.

Auto Input Switch

Automatically switches to a new input source when one is connected.

General Settings

Language and User-defined Keys

Sets menu language and customizes quick access keys for preferred menus.

Energy Saving and Deep Sleep

Manages power consumption with energy-saving modes and deep sleep functionality.

Power LED and Automatic Standby

Controls the power LED indicator and sets automatic monitor turn-off based on inactivity.

Input Compatibility, Buzzer, and OSD Lock

Configures input compatibility, buzzer sounds, and locks/unlocks the OSD menu for safety.

Information and Reset Settings

Displays system information and allows resetting all settings to their initial defaults.

TROUBLESHOOTING

Screen Display Issues

Troubleshooting common problems like no signal, flickering, or incorrect resolution.

Feature Disabled Issues

Addresses situations where some monitor functions are unavailable, often due to OSD lock.

Screen Stability and Image Quality

Image Retention Issues

Explains image sticking and recommends using a screensaver to prevent damage.

Screen Flickering Issues

Discusses screen instability and flickering, often related to resolution or refresh rate.

Display Performance Notes

Display Color Issues

Color Discoloration and Monochrome

Troubleshooting steps for discolored or unstable display colors and monochrome output.

Screen Spots and Pixelation

Explains that pixelated spots on the screen are normal and not an error.

Headphone Port Audio Issues

PRODUCT SPECIFICATION

LCD Screen and Color Depth

Specifies the LCD screen type, supported color depths, and HDMI/DisplayPort color capabilities.

Resolution and Power Sources

Details supported resolutions, maximum resolutions, and power source requirements.

AC/DC Adapter and Environmental Conditions

Lists AC/DC adapter models and specifies operating and storing environmental conditions.

Dimensions and Weight

Provides the monitor's physical dimensions (with/without stand) and weight.

Factory Support Mode

HDMI Preset Modes

Lists horizontal and vertical frequencies for various preset modes via HDMI.

DisplayPort Preset Modes

Lists horizontal and vertical frequencies for various preset modes via DisplayPort.

HDMI Timing (Video)

Power LED Status

Related product manuals

LG UltraGear 27GR75Q

47 pages

LG UltraGear 27GR75Q-B.AAU

40 pages

LG UltraGear 27GR75Q-B.AUS

12 pages

LG UltraGear 27GR93U