LG 27GN850-B 27" UltraGear™ QHD Nano IPS 1ms 144Hz G-SYNC User Manual

User Manual

USING THE MONITOR

Press the joystick button, go to Settings → Input, and then select the input option.

Connecting to a PC

This monitor supports the *Plug and Play feature.

*Plug and Play: A feature that allows you to add a device to your computer without having to reconfigure anything or install any manual drivers.

HDMI Connection

Transmits digital video and audio signals from your PC to the monitor.

DisplayPort Connection

Transmits digital video and audio signals from your PC to the monitor.

Connecting AV Devices

HDMI Connection

HDMI transmits digital video and audio signals from your AV device to the monitor.

Connecting Peripherals

Connecting Headphones

Connect peripherals to the monitor via the headphones port

NOTE

Peripheral devices are sold separately.
If you use angled earphones, it may cause a problem with connecting another external device to the monitor. Therefore, it is recommended to use straight earphones.

Depending on the audio settings of the PC and external device, headphones and speaker functions may be limited.

USER SETTINGS

Activating the Main Menu

Press the joystick button on the bottom of the monitor.
Move the joystick up/down () and left/right ( ) to set the options.
Press the joystick button once more to exit the main menu.

Main Menu Features

User Settings

Menu Settings

To view the OSD menu, press the joystick button at the bottom of the monitor and then enter the Settings.
Configure the options by moving the joystick up/down/left/right.
To return to the upper menu or set other menu items, move the joystick to or pressing ( ) it.
If you want to exit the OSD menu, move the joystick to until you exit

Settings		Description
Game Mode		Changes the game mode to the one optimized for a given feature.
Game Adjust		Adjusts the Adaptive-Sync,Black StabilizerResponse Time,Cross Hair and Game Reset.
Picture Adjust		Adjusts theBrightness,ContrastlSharpnesslGammalColor TempR/G/B,Black Level,DFC and Picture Reset.
\nput	Input List	Selects the input mode.
	Aspect Ratio	Adjusts the aspect ratio of the screen.
General		Sets Language,SMART ENERGY SAVINGRower LED,Automatic Standby,HDM\ Compatibility Mode,DisplayPort 1.4,OSD Lockjnformation and Reset.

Game Mode on SDR(Non-HDR)signal.

Settings > Game Mode		Description
Game Mode	Gamer 1	In this mode, users can customize elements including game-related options. Gamer 1 and Gamer 2 picture modes alow you to save two sets of customized display settings, including game-related setup options.
	Gamer 2
	FPS	This mode is optimized for FPS games.
	RTS	This mode is optimized for RTS Game.
	Vivid	Heightens contrast, brightness and sharpness to display vivid images.
	Reader	Optimizes the screen for viewing documents. You can brighten the screen in the OSD menu.
	HDR Effect	Optimizes the screen for high dynamic range.
	sRGB	A standard RGB color space for the monitor and printer;

Game Mode on HDR signal

Settings > HDR Game Mode		Description
HDR Game Mode	Gamer 1	In this mode, users can customize elements including game-related options. Gamer 1 and Gamer 2 picture modes allow you to save two sets of customized display settings, including game-related setup options.
	Gamer 2
	FPS	This mode is optimized for FPS games.It is suitable for very dark FPS games.
	RTS	This mode is optimized for RTS Game.
	Vivid	Optimized the screen for vivid colors.
	Standard	Optimized the screen for HDR standard.
	NOTE HDR content may not be operated properly depending on the Windows^ OS setting. Please check the HDR On / Off setting of Windows. When the HDR function is turned on, the characters or picture quality may be poor according to Graphic card performance. While the HDR function is on, screen flickering or cracking may occur when changing the monitor input or power on/off according to Graphic card performance.

Settings > Game Adjust		Description
		Provides seamless and natural images by synchronizing the vertical frequency of the input signal With that of the output signal.
Game Adjust	Adaptive-Sync	CAUTION Supported Interface: DisplayPort (G-SYIMC, FreeSync), HDMI (FreeSync). Supported Graphic Card : A graphic card that supports NVIDIA's G-SYIMC or AMD's FreeSync \s necessary. Supported Version : Make sure to update the graphic card to the latest driver. For more information and requirement, refer to NVIDIA website and AMD website .
		On	Adaptive-Sync function on.
		Off	Adaptive-Sync function off.
	Black Stabilizer	You can control the black contrast to have better visibility \n dark scenes. You can easily distinguish objects on dark game screens.

Game Adjust		Sets a response time for displayed pictures based on the speed of the screen. For a normal environment, it is recommended that you use Fast. For a fast-moving picture, it is recommended that you use Faster. Once Faster Mode is selected, Motion Blur may occur depending on the content.
	Response Time	Faster	Sets the response time to Faster.
		Fast	Sets the response time to Fast.
		Normal	Sets the response time to Normal.
		Off	Does not use the response time improvement feature.
	Cross Hair	Cross ha\r provides a mark on the center of the screen for First Person Shooter (FPS) games. Users can select the cross hair that fits their gaming environment among four different cross hairs. • When the monitor \s off or enters energy saving mode, the cross ha\r feature \s automatically turned off.
	Game Reset	Returns game to the default settings.

Settings > Picture Adjust		Description
	Brightness	Adjusts the brightness of the screen.
	Contrast	Adjusts the contrast of the screen.
	Sharpness	Adjusts the sharpness of the screen.
	Gamma	Mode 1, Mode 2, Mode 3	The higher the gamma value, the darker the image becomes. Likewise, the lower the gamma value, the lighter the image becomes.
		Mode 4	If you do not need to adjust the gamma settings, select Mode 4.
		Custom	The user can adjust it to red, green, or blue by customization.
		Warm	Sets the screen color to a reddish tone.
Picture Adjust	Color Temp	Medium	Sets the screen color to between a red and blue tone.
Picture Adjust		Cool	Sets the screen color to a bluish tone.
		Manual	Adjusts the color temperature in 500K increments. (Note that 9300K is supported instead of 9500K.).
	R/G/B	You can customize the picture color using Red, Green, and Blue colors.
	Black Level	Sets the offset level (for HDMI only). Offset: as a reference for a video signal, this is the darkest color the monitor can display.
	Black Level	High	Keeps the current contrast ratio of the screen.
		Low	Lowers the black levels and raises the white levels from the current contrast ratio of the screen.
	DFC	On	Adjusts the brightness automatically according to the screen.
	DFC	Off	Disables the DFC feature.
	Picture Reset	Returns picture and color to the default settings.

Settings > Input		Description
Input	Input List	Selects the input mode.
	Aspect Ratio	Adjusts the aspect ratio of the screen.
		Ful Wide	Displays the video in widescreen, regardless of the video signal input.
		Original	Displays video according to the aspect ratio of the video signal input.
		Just Scan	The aspect ratio is not adjusted from the original.
		NOTE The display may look the same for FuW Wide and Original options at the recommended resolution. (2560 x 1440) There is no Just Scan menu on Adaptive-Sync Mode. ( Go to Picture → Game Adjust → Adaptive-Sync, to set Adaptive-Sync On or Off)

Settings > General		Description
	Language	Sets the menu screen to the desired language.
	SMART ENERGY SAVING	High	Saves energy using the high-efficiency SMART ENERGY SAVING feature.
		Low	Saves energy using the low-efficiency SMART ENERGY SAVING feature.
		Off	Disables the SMART ENERGY SAVING feature.
		Turns the power LED on the bottom of the monitor on or off.
General	Power LED	On	The power LED turns on automatically.
		Off	The power LED turns off.
	Automatic Standby	Feature that automatically turns off the monitor when there is no movement on the screen for a period of time. You can set a timer for the auto-off function. (8H, 6H, 4H and Off)
		HDMI Compatibility Mode feature can recognize the legacy equipment that does not support HDMI 2.0.
		On	Enables HDMI Compatibility Mode.
	HDMI Compatibilit Mode	Off	Disables HDMI Compatibility Mode.
	HDMI Compatibilit Mode	NOTE If the connected device does not support HDMI Compatibility Mode, the screen or sound may not work properly.
		Some older graphics cards do not support HDMI 2.0,but you can select HDMI 2.0 resolution \n the control panel of window. This may cause the screen to appear abnormally.
		Enables or disables DisplayPort 1.4. NOTE Be sure to configure this option according to the DisplayPort version supported by your graphics card. Set this option to Disable if your graphics card does not support DisplayPort 1.4.
	DisplayPort 1.4

OSD Lock	This feature disables the configuration and adjustment of menus.
	On	Enables OSD Lock.
	Off	Disables OSD Lock.
	NOTE All features are disabled except Brightness, Contrast \n Picture Adjust, Input, OSD Lock and Information \n General.
Information	The display information will be shown the Serial Number Total Power On Time, Resolution.
Reset	Restores the default settings.

TROUBLESHOOTING

Nothing is displayed on the screen.
Is the monitor's power cord plugged in?	Check if the power cord is correctly plugged into the power outlet.
Is the power LED on?	Check the power cable connection and press the power button.
Is the power on and the power LED displaying whitel	Check that the connected Input is enabled (Settings > Input).
Is the power LED blinking?	If the monitor is in sleep mode, move the mouse, or press any key on the keyboard, to switch the display on. Check if the computer is turned on.
Is the The screen is not currently set to the recommended resolution. If you have no video or the screen flickers, see the troubleshooting guide in the product owner's manual. message being displayed?	This occurs when signals transferred from the PC (graphics card) are out of the recommended horizontal or vertical frequency range of the monitor. Please see the Product Specification section of this manual to set the appropriate frequency.
Is the No Signal message being displayed?	This is displayed when the signal cable between the PC and the monitor is missing or disconnected. Check the cable and reconnect it.
Have you installed the display driver?	Be sure to Install the display driver Make sure to check if the graphics card supports Plug and Play function.

Some features are disabled.
Are some functions not available when you press the Menu button?	The OSD is locked. Go to Settings > General and set OSD Lock to Off.

The screen retains an image.
Does image sticking occur even when the monitor is turned off?	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 the monitor use a screensaver.

Screen display is unstable and shaky. / Images displayed on the monitor leave shadow trails.
Did you select the appropriate resolution?	If the selected resolution is HDMI 1080i 60/50 Hz (interlaced), the screen may be flickering. Change the resolution to 1080p or the recommended resolution.

NOTE

Vertical Frequency: m order to display an image, the screen must be refreshed dozens of times per second, Ike a fluorescent lamp. The number of times the screen is refreshed per second is called vertical frequency, or refresh rate, and is represented by Hz.
Horizontal Frequency: The time it takes to display one horizontal line is called the horizontal cycle. if 1 is divided by the horizontal interval, the result is the number of horizontal lines displayed per second. This is called horizontal frequency and is represented by kHz.
Check if the graphics card's resolution or frequency is within the range allowed by the monitor and set it to the recommended (optimal) resolution Control Panel > Display > Settings in Windows. (The settings may differ depending on the operating system (OS) you use.)
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.
The setting methods may be different depending on the computer or operating system, and some resolutions may not be available depending on the performance of the graphics card. \f this is the case, contact the manufacturer of the computer or graphics card for assistance.
Some graphics cards may not support 2560 x 1440 resolution. \f the resolution cannot be displayed, contact the manufacturer of your graphics card.

The display color is abnormal.
Does the display appear discolored (16 colors)?	Set the color to 24 bit (true color) or higher; in Windows, go to Control Panel > Display > Settings > Color Quality. (The settings may differ depending on the operating system (OS) you use.)
Does the display color appear unstable or monochrome?	Check if the signal cable is connected properly. Reconnect the cable or reinsert the PC's graphics card.
Are there spots on the screen?	When using the monitor pixilated spots (red, green, blue, white, or black) may appear on the screen. This is normal for an LCD screen. It is not an error nor is it related to the monitor's performance.

No sound from the headphone port.
Are images displayed using DP (DisplayPort) or HDMI input without sound?	Make sure that the headphone port connections are made properly. Try increasing the volume with the joystick. Set the audio output of the PC to the monitor you are using. On Microsoft Windows, go to Control Panel > Hardware and Sound > Sound > set the Monitor as default device. (The settings may differ depending on the operating system (OS) you use.)