Keynote: Monitor dims in presentation mode

When I'm entering presentation mode in a Keynote presentation (by hitting "Play"), my monitor dims a bit so that white slides are becoming grey. This is in full screen mode as well as in windowed mode.

Has anyone an idea where this is coming from?

Working on Keynote 14.4 on a MacBook Pro M1 under MacOS Sequoia 15.4.1

MacBook Pro 16″, macOS 15.4

Posted on Apr 24, 2025 8:35 AM

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Keynote: Monitor dims in presentation mode

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