How to shrink what is shown on an external display?

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Level 1

5 points

How to shrink what is shown on an external display?

Using a Mac Pro 16" 2019 model with Samsung LC24F 39FHN external display connected with HDMI.

By going to very small resolution the Menu Bar begins to show. This was not a problem for months, then showed up a month or two ago. Updated to Sequoia with no improvement. It's frustrating to use an app on the external display without the menu bar.

[Re-Titled by Moderator]

Original Title: How can you shrink what the external display shows? At default resolution, and others except in small resolutions, the menu bar is entirely, or almost entirely off the top.

Apple TV 4K, tvOS 18

Posted on Oct 28, 2025 2:23 PM

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Answer 1

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MartinR

Level 7

24,053 points

Oct 28, 2025 2:54 PM in response to BioBill

What you are experiencing is called underscan (or overscan). With your Samsung connected to your MBPro, open System Settings > Display, select your TV and adjust the display size with the Underscan setting.

For more information, see Fix overscan or underscan on your TV or projector Note that it's possible you may also need to adjust a similar setting in your TV.

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