Find helpful information about your LG Product through our Help Library. Find helpful information about your LG Product through our Help Library.

Help library

Find helpful information about your LG product

LG Monitor - How to Adjust Screen Brightness

  • Troubleshooting

Causes and Symptoms

  • Screen brightness or contrast is set too high.
  • The PC graphic card setting is changed.

Try This

Did you reset the monitor settings?

➔ It can occur due to monitor power saving or auto off errors, thus reset the monitor to the factory setting.

(※ Menus may differ by model, so please refer to the user guide for details.)


1. At the bottom center of the product, press the joystick button to open the main menu.

2. Move to the right to select [Settings].

At the bottom center of the product, press the joystick button to open the main menu.

3. Select [General].

4. Select [Reset to Initial Settings] and press [OK] to reset it.

Select [General] → [Reset to Initial Settings] and press [OK] to reset it.

For gaming monitors and TV monitors, see the following link.

Did you try to change the screen brightness?

➔ Depending on the monitor condition, the screen might look dark, so try to change the brightness/contrast level.

(※ Menus may differ by model, so please refer to the user guide for details.)


1. Press the joystick at the bottom center of the product to open the main menu.

2. Move to the right and then press [Settings].

At the bottom center of the product, press the joystick button to open the main menu.

3. In [Simple Settings], adjust [Contrast]/[Brightness].

In [Simple Settings], adjust [Contrast]/[Brightness]

Did you try to change the PC graphics card settings?

➔ Due to the error in gamma/brightness in the PC graphic setting, it might get little brighter, so revert it to default.

(※ The method for change varies depending on the version of Windows, the type of graphics card and the version of driver.)

Wait! Find out more.
How to restore the default value of gamma/brightness of the NVIDIA graphic card
1. Right click on your desktop and select [Nvidia Control Panel].
Right click on your desktop and select [Nvidia Control Panel].
2. In [Background Screen Color Setting Adjustment] run [Restore Defaults] at the right top.
If it is still bright, then adjust [Brightness/Gamma] and create the optimal status.
In [Background Screen Color Setting Adjustment] run [Restore Defaults] at the right top.

How to restore the default value of gamma/brightness of the Intel graphic card
1. In the input window at the left bottom of background, select [Intel] and run [Intel Graphics Control Panel].
If the [Intel Graphics Control Panel] menu is not displayed, then update the [Intel Graphics Driver].
If the [Intel Graphics Control Panel] menu is not displayed, then update the [Intel Graphics Driver].
2. Select [Display].
Select [Display]
3. If possible(activation), run [Restore Default] in [Color Settings].
If not selectable(activation), then adjust [Brightness/Contrast] to create the optimal status.
If possible(activation), run [Restore Default] in [Color Settings]

※ If you still experience the same issue after following the steps above, have your monitor checked by an LG Electronics service technician.

This guide was created for all models, so the images or content may be different from your product.

*Required question

Related Help Library

See more