Computer Screen Dims after 30 seconds

Question

I recently updated my Windows 10 Pro computer (surface laptop 4) and now after 30 seconds the screen dims. When I move the mouse, the screen lightens up again. Then in 30 seconds it dims again.

Any ideas?

Thanks,

Ken

Answer 1

Hi Ken Schoening,

We still have not received any response from you since our last follow up message. Please do not hesitate to create a new thread for further concerns. We hope that the issue you reported to us has been resolved. We personally understand that finding time to work on this matter can be a little difficult to manage.  Thus, we would like to let you know how much we appreciate your patience and most importantly the time you've dedicated to getting a resolution for this issue of yours.

Thank you for spending time here in the Community.

Kind regards,

Marrion

Answer 2

Hi Ken Schoening,

We have noticed that you haven’t replied to our first response yet. We would like to know if you still need some assistance on the concern raised. If yes, please reply back for us to further assist you.

Hope to hear from you.

Kind regards,

Marrion

Answer 3

Hi Ken Schoening,

Thank you for reaching Microsoft Community.

Just t make sure that I get the correct picture of the concern: the screen of your Surface Laptop 4 dims by itself when left idle for around 30 seconds but screen would lights up back when you touch the touchpad or press a key on the keyboard, correct?

May I know which Surface Laptop 4 configuration do you have? Intel or AMD?

Does it happen also when using the device while connected to its power supply or only when running on battery?

Kindly run these steps first on your Surface Laptop 3 then see if the issue persist:

1: Run Surface Diagnostic Toolkit

See: Fix common Surface problems using the Surface Diagnostic Toolkit (microsoft.com)

2: Check for Windows Update

Go to Windows Settings > Update & Security and select Check for updates

Make sure all updates need are installed including Optional updates

3: Update drivers and firmware

Check what is the current OS Build of your Windows version by going to Settings > System > About. 

Go to Download driver and firmware for Surface, choose Surface Laptop

Then click the link next to Surface Laptop 4 then click Download on the next page.

Choose the .msi file that matches your current OS Build and click Next.

After downloading, run and install the .msi then Restart. 

4: Run System File Checker Tool

See: Using System File Checker in Windows (microsoft.com)

Your Surface also has the adaptive screen brightness and contrast feature where the screen brightness and contrast would adjusts based on the content displayed. Try also disabling this feature by following the steps given here: Adaptive brightness and contrast on Surface devices (microsoft.com).

Kind regards,

Marrion