Causes and Symptoms
- Screen brightness/contrast is set too low.
- Night mode is turned on in Windows 10.
- PC graphics card setting is changed.
- HDR function is turned on in Windows 10.
Try this
Did you reset the monitor setting?
➔ Due to the change in the monitor setting, it might look dark, so reset the monitor.
※ Menus may differ by model, so please refer to the user guide for details.
1. Press the joystick button.
2. Move to the right to select [Settings].
3. In [General], select [Reset to Initial Settings] and press [OK] to reset it.
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 button.
2. Move to the right to select [Settings].
3. In [Quick Settings], adjust [Contrast]/[Brightness].
Did you check the night mode in Windows 10 of your PC?
➔ Night mode can be used to display warm colors that help your sound sleep by reducing the light emission of blue colors that can disturb your sleep.
Turn off the Night light in Windows 10 on your PC.
Did you try to change the PC graphics card setting?
➔ Due to the error in gamma/brightness in the PC graphic setting, it might get little darker, 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.
NVIDIA graphic card gamma/brightness adjustment
1. 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 not improved, then adjust [Brightness/Gamma] and create the optimal status.
Intel graphic card gamma/brightness adjustment
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 install [Intel Graphic Driver].
2. Select [Display].
3. If possible(activation), in [Color Setting], run [Restore Defaults].
If not selectable(activation), then adjust [Brightness/Contrast] to create the optimal status.
Did you disable the HDR function on your PC?
➔ When the HDR function is enabled in Window 10, the screen color might feel strange and the brightness can get reduced.
※ 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.
