Macbook pro 2017-Second monitor is not full screen

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Level 1

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Macbook pro 2017-Second monitor is not full screen

Hello,

I'm using second monitor for my Macbook pro (not mirror, just as secondary screen), but unfortunately it's not filling the entire screen for some reason.

I've tried almost everything but it looks like a weird bug.

Is there any solution for this problem?

I'm attaching a photo of the monitor (the black area should be filled).

Thank you for helping

MacBook Pro 13″, macOS 10.15

Posted on Oct 11, 2020 12:32 AM

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Answer 1

Best reply

Sharhari

Level 5

6,293 points

Oct 11, 2020 3:25 AM in response to RuEddie

About overscan and underscan on your Mac, Apple TV, or other display - Apple Support

or

Get help with video issues on external displays connected to your Mac - Apple Support

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Answer 2

Sharhari

Level 5

6,293 points

Oct 11, 2020 10:23 AM in response to RuEddie

Compatibility issue: You may need to check with different set of connecting cable / adapters.

Also please see below link to check your current input source & resolution on your monitor.

https://www.samsung.com/sg/support/computing/how-to-view-current-input-source-frequency-and-resolution-on-samsung-monitor/

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Answer 3

RuEddie Author

Level 1

8 points

Oct 11, 2020 4:40 AM in response to Sharhari

I've tried this, but there is no overscan or underscan slider in the display settings.

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Answer 4

Sharhari

Level 5

6,293 points

Oct 11, 2020 5:06 AM in response to RuEddie

Please check "Scaled" while pressing down option/alt key, should provide all modes of resolution and see if it shows 1920X1080.

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Answer 5

RuEddie Author

Level 1

8 points

Oct 11, 2020 8:25 AM in response to Sharhari

Yes it is on 1080p.

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Macbook pro 2017-Second monitor is not full screen

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