The screen dims or flickers only on battery
My laptop screen changes brightness by itself. How do I stop it?
Written by The CommonFixes team · fact checked by CommonFixes review desk
Last updated
Short answer
Adaptive brightness and Intel Display Power Saving change the panel brightness with the content shown, which reads as flickering. The quickest thing to try first: turn off adaptive brightness — Settings, System, Display, Brightness, and untick both Change brightness automatically when lighting changes and Help improve battery by optimising the content shown. Most people are done in about 5 minutes.
Full walkthrough below: 4 steps for Windows and Mac, rated easy.
Sounds like this
- •Brightness drops when you unplug
- •Screen dims on dark images
- •Flicker while scrolling
Why it happens
Adaptive brightness and Intel Display Power Saving change the panel brightness with the content shown, which reads as flickering.
Work through these in order
0% done- 1
Turn off adaptive brightness
Settings, System, Display, Brightness, and untick both Change brightness automatically when lighting changes and Help improve battery by optimising the content shown.
- 2
Disable Display Power Saving
Open Intel Graphics Command Center, System, Power, and set Display Power Saving to Off for both battery and plugged in.
- 3
Match the power plan
Control Panel, Power Options, Change advanced settings, Display, and turn off Enable adaptive brightness for both states.
- 4
Set a fixed refresh rate
Settings, Display, Advanced display, and turn off Dynamic refresh rate if your laptop offers it.
If none of that worked
If flicker also happens in the BIOS screen before Windows loads, it is the panel or its cable, not a setting, and needs a technician.
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Who wrote this and how we checked it
The CommonFixes team
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We are a small group of people who spend our days repairing laptops and desktops for family, friends and small offices. Every guide here starts with a problem someone actually brought to us, and we only write down the steps that put the machine right.
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CommonFixes review desk
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Before a guide goes live, a second person walks through it on a real machine and checks each instruction against the maker's own support pages. Anything we cannot confirm is removed rather than guessed at.
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This guide was last updated on 10 August 2026. If a step no longer matches what you see on screen, tell us on the contact page and we will test it again.
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