Laptop Screen Auto-Dims/Brightness based on what content is being shown constantly

[LanceAndrei]

I recently replaced my laptop screen with a new compatible one (the previous one was broken and was flickering). This time, the new one is indeed working perfectly, my only issue is that it keeps auto-dimming or changing its brightness constantly based on what is being shown on the screen. For example, if something is black or dark, the screen dims, and if it is something white or light, then the screen brightens. This happens constantly even if it is as small as a light image on Discord it changes the brightness like it's flickering. 

Furthermore, I noticed that when booting up, the login screen doesn't change brightness once I need to enter my PIN to log in. But after a while I entered my correct Pin it then suddenly changed the brightness to a dimmer one then a brighter one again once the home screen popped up (my wallpaper is a light image).  So I think it's a software/windows issue but idk.

I also would like to note that I have tried all possible solutions I have seen on the internet. Check the BIOS settings, update the graphics drivers, and disabled-enabled it. Check the Power Plan Options if there is an Auto-brightness option (there is none). Also checked the Intel Graphics Command Center in the power section (there is none as my laptop doesn't support it).I also checked various Windows settings if there is something that relates to changing the brightness automatically (there is also none).

For Reference here is the LCD Model No.
Original: B156HAN08.2
Replacement: B156HAN08.0 (its compatible for the above model)

I do not think it is necessarily the LCD replacement itself as other users who upgrade their LCD screens to a better one dont find the same issue as I am having. But I would like to know your guys thoughts if you have any solutions or whatnot.
Thanks!
 

[sandytechy20]

@LanceAndrei

Welcome to the HP support community.

I understand that you are having issues with notebook brightness, I am glad to assist you.

This might require one on one interaction to fix the issue, I am sending you a private message with the steps to talk to HP support.

Please check the mailbox icon at the top-right corner of this screen.

I hope this helps resolve this issue completely.

If this helps, please mark the public post as an accepted solution so that it benefits several others.

Cheers