Windows 10: Problems with screen brightness and night light mode

I have 2 problems with my laptop as mentioned above. Both of these problems only happen when I upgrade the OS from Window Home SL to Pro, after using Win Pro for a month, I discovered my laptop cannot adjust the brightness and cannot use the night light mode. I took Google to find out how to solve the problem and follow all the instructions but there is no way to fix it, I feel tired and disappointed with the Windows 10 Pro. Don't know if anyone here can help me please

:)

 

Broken brightness setting and Night Light

Hello,

Since scheduling night light I'm unable to change screen brightness setting. Night light strength adjustment also not working even in night light schedule "off" time. Turning off the schedule switch altogether solves night mode strength lock but global screen
brightness still locked, ie the brightness slider moves but screen brightness doesn't change whatsoever ie, broken.

I've never installed flux etc, only the native night mode on the new surface 7 with up to date windows. Brightness slider worked as expected before scheduling night mode.

When night light schedule is turned off via switch in settings global brightness slider is still ineffective and broken, it slides to no effect.

Many thanks for reading.

Surface Pro 7

Latest updates

 

Night Light Settings

Separately from the Night Light, is the brightness options also disabled? If so, I might recommend these steps to make it work again:

1) Right-click Start button, choose Device Manager

2) Find the "monitors" section in the list and expand it

3) Right-click and uninstall every item listed under the monitors section

….. note: don't accidentally go to the "display adapter section", leave that one untouched.

4) Click the "scan for hardware" button on the toolbar up top (the icon with the magnifying glass inside it)

5) Try brightness and night light settings again

 

brightness and night light

Hello Akinkunmi123,

I'm Independent Advisor and Microsoft MVP, here to help you with your question.

To fix brightness issue, refer these suggestions:

1. Run Power troubleshooter from Settings app > Update & security > Troubleshoot.

2. Open Device Manager (run devmgmt.msc command), try uninstalling your display adapter and then click Action > Scan for hardware changes.

3. Update your display driver to latest version.

To fix issue with Night light, refer this article:

https://www.kapilarya.com/fix-night-light-not-w...

Let us know if this helps!

Note: Included link in this reply refers to blog post by a trusted Microsoft MVP.