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Screen dimming when playing a video

Hello,


I have a problem I cannot figure it out. Recently, when I'm playing a video (Youtube, Dailymotion, VLC and with each support), my external display dim immediately. It seems to be OS-related, so I search in the various parameters, without any success.


I'm using a BenQ monitor with a brand new one Mac mini M1.


Do you have any idea ?



Thank you for the support. :)

Mac mini, macOS 11.5

Posted on Aug 13, 2021 3:59 AM

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Question marked as Top-ranking reply

Posted on Aug 16, 2021 10:22 PM

I found the problem !

It comes from color profiles, only if selected via my display : by changing it from Preferences, I have no problem with other profiles like Apple RGB, Display P3 etc.


Im gonna dig this. Thank you !

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3 replies

Aug 14, 2021 8:39 AM in response to thibautflt

Hello and welcome to Apple Support Communities, thibautflt.

If we understand your post correctly, the display connected to your Mac mini dims when you're playing a video. We’d like to help.


Follow the steps in this article:


If your Mac display doesn’t look right


Let us know if that resolves this issue for you.


Thanks for using the Apple Support Communities.

Screen dimming when playing a video

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