Underscan on MacOS

The Underscan bar on my new M1 Mac mini is missing, how do I adjust the screen on my monitor without that?

Mac mini, macOS 11.4

Posted on Jul 26, 2021 7:53 PM

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den.thed

Level 10

90,634 points

Posted on Jul 27, 2021 9:54 AM

Go to the TV’s Menu and try selecting a different (aspect ratio) or Screen Size.

Go to Apple > System Preferences > Displays > Resolution and try selecting a different display resolution.

You may have to adjust both, to find the sweet spot.

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4 replies

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den.thed

Level 10

90,634 points

Jul 27, 2021 9:54 AM in response to Trev_Wil18

Go to the TV’s Menu and try selecting a different (aspect ratio) or Screen Size.

Go to Apple > System Preferences > Displays > Resolution and try selecting a different display resolution.

You may have to adjust both, to find the sweet spot.

Jul 27, 2021 4:48 PM in response to Trev_Wil18

See if you can turn off Underscan in the TV's picture settings. Look for a setting such as 100%, Full Size, Pixel-to-Pixel ...

den.thed

Level 10

90,634 points

Jul 27, 2021 5:41 AM in response to Trev_Wil18

What display and how is it connected to the Mac Mini?

Go to Apple > System Preferences > Displays > Resolution and select a different resolution.

Trev_Wil18 Author

Level 1

9 points

Jul 27, 2021 9:34 AM in response to den.thed

It’s a TV connection through HDMI

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Underscan on MacOS