If there is an issue with your graphics driver, you may not be able to adjust screen brightness, which can be resolved by uninstalling and reinstalling the graphics driver.
Causes and Symptoms
- Due to graphics driver errors or no installation of the driver, screen brightness control might fail.
Try this
Did you try to adjust the brightness using the following methods?
① On the keyboard, press the [Fn + F2, F3] keys to adjust the screen brightness.
② Adjust the screen brightn4ess in Windows settings.
On the keyboard, press the [Windows +I] key to select [Windows Setting] → [Display].
③ In the LG Control Center program, adjust the brightness.
[System Settings] → [Screen Brightness]
In device manager, remove the graphics driver and install it again.
① Right click with the mouse button on the [Start] button at the left to the screen or press the [Windows + X] keys on the keyboard to run device manager.
② In [Device Manager], double click the [Display Adapter] item.
③ After selecting the graphics device below [Display Adapter] and click the [X] icon at the top.
※ If the graphics device is not installed, then the display adapter is marked as “default Microsoft display adapter” or "standard VGA graphics adapter".
④ Do not put a check mark on the [Attempt to remove the driver for this device.] item but click the [Delete] button.
⑤ After you [Restart] the PC, check if the screen brightness is adjusted.
⑥ If the problem persists, check [Delete the driver software for this device] and restart the PC and then reinstall the graphics driver.
After that, choose the corresponding Windows version from the [Operating System (OS)] category. Once you have done this, you can proceed to install either the LG Update Center or the LG DnA Center Plus program.
※ If the problem persists after the above remedies, then you need to have it 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.
