Hello, I'm having this issue where i've noticed that my screen brightness dims and gets bright depending on what i have open.

Question

Hello, I'm having this issue where i've noticed that my screen brightness dims and gets bright depending on what i have open.

Anonymous

For example if i have a white screen like Youtube or anything that has a white background in the window open, the brightness is bright (which is normal btw) but when i open something with a dark color background lets say windows settings, the screen brightness dims. now mind you the brightness value is still the same 50% i have it on, its not increasing or decreasing but i can literally see the brightness dim and brighten accordingly i see the screen get dimmer and brighter.

Now through some searching i found out it was due to something called "Sensory Monitoring Service". its a service that runs in the background and yes it does work. I disabled the service and it was working, the screen would no longer get dim when i had a darker window open but only this only worked temporarily. If i restarted or shutdown and ran my laptop after that it would go back to dimming and brightening by itself. I would have to restart the service and disable the service again for it to stop adapting to the screen. but now this fix has stopped working entirely, its still adapting to what i have on my screen even when i disable the service.

Summary: screen gets dimmer and brighter depending on what i have open, I found the solution to it, worked for a while but doesn't work anymore. Help please !

ps. I tried adding the screenshot but it keeps saying failed to upload so i dont know if its like a blank image or something for you. For anyone wondering, the service is accessible through the following steps:
Click windows + r to open run command.
Type the following and enter: services.msc
locate "Sensor Monitoring Service" and read description.

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

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Answer accepted by question author

Francisco Montilla 30,710 Independent Advisor

Hi Abdul,

First let’s be sure we’re stopping Windows itself from dimming in response to screen content by turning off the display‑power‑saving feature built into your graphics driver. On most laptops this lives in the Intel Graphics settings (if you have Intel graphics) or the AMD Radeon settings (if you have an AMD GPU). Since disabling the Sensor Monitoring Service alone no longer sticks, this is the likeliest place it’s still re‑enabling itself.

If you have Intel graphics:

Press Windows+S, type Intel Graphics Command Center, and open it.

In the Command Center, click System in the left column, then select Power. Under Display Power Saving Technology, switch both “On battery” and “Plugged in” to Off. Close the Command Center, restart your PC, and check again.

If you have AMD graphics:

Right‑click on the desktop and choose AMD Radeon Settings (or AMD Adrenalin). Click Preferences, then Power, and set Vari‑Bright (or any Power‑Saving Brightness feature) to Off. Apply and reboot.

Once that’s done, open a white window and then a dark one. If the brightness now stays even, we know it was the graphics driver re‑applying adaptive dimming. Let me know how that goes and we’ll take it from there.

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2 additional answers

Answer 1

Hello Francisco,

Thanks for the tip but it seems as though there is no "adaptive brightness option".

Ive run the command you wrote and it did open a window called power options with a tab called Advanced settings. There is a list here and ive expanded on the display option but the only option under display is

"Turn off display after" and under that is

"On batter: Never" and "Plugged in: Never" and that's about it.

Nothing about adaptive brightness. I checked all other items in the list incase they might have it but no luck.

Answer 2

Hello Abdul,

Thank you for clearly explaining your issue. The problem you're experiencing is likely due to adaptive brightness settings still active on your Windows system, despite disabling the "Sensor Monitoring Service". Since your previous solution stopped working, let’s first ensure adaptive brightness is fully disabled at the system level, as this typically resolves this persistent issue.

Here is the best way to fully disable Adaptive Brightness permanently:

Press Windows Key + R, type

control.exe powercfg.cpl,,3

and press Enter. This will open advanced power options directly.

In the window that appears, scroll down and expand the item labeled Display, then look for "Enable adaptive brightness". Set "On battery" and "Plugged in" to Off, then click Apply and OK.

Please try these steps, restart your laptop, and let me know if the brightness issue is fully resolved.