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When I open a dark window like Discord, my laptop's display dims. When I minimize it and open something white, it takes a while for the light to go back up and it gives me a headache.

I've tried setting the Intel-something settings for the battery by disabling some option, but there's no way to disable it for when my laptop is on an adapter. I've heard that there's a DCPolicy-something registry key that I need to change, but that registry key doesn't exist. What should I do?

I have a Windows 10 ASUS laptop X540SC.

Foxcat385
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3 Answers3

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Below are three methods which are supposed to disable Adaptive Brightness. Only one is theoretically required, but I list all three in the order of their likelihood of working out.

Use the Intel Control Panel to set the Intel HD Graphics for the power source On battery so as to disable Display Power Saving Technology :

enter image description here

You may also in PC Settings, System, Display, turn the Change brightness automatically when lighting changes to Off.

This option should be available if your computer has a light sensor. If it is missing, check the manufacture's website for the correct driver and/or software package, if Windows 10 support is provided for your computer.

Edit also the group policy Computer Configuration > Administrative Templates > System > Power Management > Energy Saver Settings and set both policies to Enabled at 0%.

For Windows editions of Starter, Home and Home Premium which do not include the group policy editor, see the post :
Windows Starter Edition, Home and Home Premium do not include gpedit, how do I install it?.

harrymc
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2

Make sure Enable adaptive brightness is off for both battery and plugged in.

Find this option in Control Panel -> Power Options -> Change Plan Settings (for your active plan) -> Change advanced power settings -> Display

Appleoddity
  • 11,970
0

For me this helped (sorry if translation isn't perfect, I have mine in Hungarian and can't change app language):

Intel Graphics Command Center → System (side menu button) → Performance tab → "From battery" sub-tab → "The display's energy efficiency" toggle, set it to OFF

See on the following image, too:

turn off display energy efficiency toggle

Károly Ozsvárt
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