Windows 10: My Alienware laptop won't change brightness

I have been having an issue where my brightness settings won't change if I change them through the keyboard buttons, the slider, or in the settings. However it will change if I change the slider and restart my laptop. It is very irritating to have to restart my laptop whenever my eyes start to get tired or something. I've cleared my cache and made sure that not too much in running in the background using my task manager.

:)

 

Changing laptop brightness.

Hi,

I realize the inconvenience you are experiencing in adjusting/changing the screen brightness in Windows 10. I will certainly help you.

This issue might be related to Display adapter.

Before proceeding further, I would like to ask few questions:

1) How exactly you are trying to change the screen brightness?

2) Do you get any error message, when trying to change the brightness?

Please follow below mentioned steps to fix the issue:

Step 1: updating the display adapter and check if it helps.

Follow the below steps:

• Press Windows + R key on the keyboard.
• Type devmgmt.msc and press enter.
• Expand the Display adapter.
• Right click on the driver and select
  Update driver software.

For more information, refer to the below link:

https://support.microsoft.com/en-us...d4-a109-221bd8a32fca/change-screen-brightness

Please get back to us, if you are facing issue
in adjusting/changing the screen brightness in Windows 10.

Thank you.

 

Unable to Change Screen Brightness of Laptop


So I'm not sure how long this has been happening but for some reason, I can't change the brightness on my laptop screen. I have linked a picture and as you can see, my brightness says 0% and that I can't change it, however my actual brightness is at 100%. I have looked around everywhere and the only responses I have found don't work for me. Here's a list of everything I have tried:
- Reinstalling Display Drivers
- Rolling Back Display Drivers
- Reset Settings on UWT4
- Power and Battery Settings
(UWT4 or Ultimate Windows Tweaker 4 is a customizer for Windows 10 and I thought that might be the problem but it wasn't)

If anyone has any suggestions on how to fix this, it's greatly appreciated! Thanks! -

 

Brightness changing problem

Hi,

Changing the screen brightness on your laptop can be adjusted by going to
System > Display where you can use the slider to adjust the brightness. If your PC supports, you may also let Windows to automatically adjust the screen brightness according to the current lighting condition by enabling
Change brightness automatically when lighting changes.

If you've already the tried the suggestions above but the screen brightness still doesn't change, then we suggest updating the display drivers. Please see

Update drivers in Windows 10 for the steps on how to update the drivers.

Feel free to let us know if you need further assistance.

Regards.