New laptop screen keeps dimming by itself, have tried everything

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Fix 1: Disable Adaptive Brightness

Some devices use ambient light sensors and provide the adaptive brightness feature that can adjust screen brightness automatically based on the natural lighting conditions around. If your screen keeps dimming, you can go to disable this feature.

Step 1: Press Windows + S, input power in the empty box, and click Edit power plan from the search results.

Step 2: Click Change advanced power settings to open the Power Options window.

Step 3: Under the Advanced settings tab, expand Display > Enable adaptive brightness and set the setting’s status to Off.

Step 4: Click Apply and OK button to save changes.

After that, you can check if the “screen keeps dimming Windows 10” has been resolved. If your computer doesn’t have this feature or this method fails to work, you can move on to the next solution.

See also:

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Why does my Lenovo screen keep dimming?

The above symptoms are that of the Ambient Light Sensor feature. To disable this or make changes to the settings, go to the Advanced Section of the Windows Power Settings >> Display >> Auto Dim. Next choose change plan settings. You can set when to dim the display when on AC or while on battery.

How do I change the adaptive brightness in Windows 10?

How to Enable or Disable Adaptive Brightness in Windows 10

  • Step 1: Open the “Control Panel” in the start menu.
  • Step 2: Find the click on “Power Options”.
  • Step 3: Click “Change plan settings” next to the current power plan.
  • Step 4: Choose “Change advanced power settings”.
  • Step 5: Scroll down and locate the “Display” and expand it for “Enable adaptive brightness.”

Fix 3: Calibrate Display Color

Windows provides a tool named Display Color Calibration that helps improve the color on the display and make sure colors appear accurately. Some users report that they have resolved the screen dimming issue by calibrating display color using this tool. You can also have a try.

Step 1: Input calibrate in the Search bar and click Calibrate display color from the results.

Step 2: Click the Next button to skip the welcome page of Display Color Calibration.

Step 3: Keep clicking the Next button until you get the Adjust gamma screen. Move the slider up or down to minimize the visibility of the small dots in the middle of each circle. Click Next to continue.

Step 4: Click the Skip brightness and contrast adjustment option and keep clicking the Next button until you get the Adjust color balance page.

Step 5: Adjust the red, green, and blue sliders to reach the color balance you prefer and click the Next button.

Step 6: Click the Finish button to save the new calibration and exit the tool.

Now, you can check if the screen dimming problem is removed.

3) Modify Registry

You can also change a Registry value to fix your dim screen issue. But please note that Registry editing is very risky in that any misoperation can bring about unexpected consequences. You should always be very careful about modifying registry. Besides, it is also strongly recommended that you back up your Registry before you go ahead to the steps below.

Please also note that you need to update your graphics driver before you perform this method.

a) Press Win and R keys on your keyboard at the same time to open Run dialog. Then type “regedit” and hit Enter. This will open Registry Editor.

b) On Registry Editor, use the registry hive

b) On Registry Editor, use the registry hive on the left hand side to navigate to the location “HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Class\{4d36e968-e325-11ce-bfc1-08002be10318}\0000” OR “HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Class\{4d36e968-e325-11ce-bfc1-08002be10318}\0001“.

c) Find FeatureTestControl and double click o

c) Find FeatureTestControl and double click on it.

d) Change the value data to “f048&#8221

d) Change the value data to “f048” and then hit OK.

e) After that, close the Registry Editor. Reboot y

e) After that, close the Registry Editor. Reboot your laptop and see if the problem resolves.

If none of the methods above get your Lenovo laptop screen back to normal, you may need to consider the dim screen problem as a hardware issue. You can contact Lenovo official support and see if they can offer any further assistance.

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