Extending screen across two displays (monitors)

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Extending screen across two displays (monitors)

I have a Macbook Pro 2021 14" with two UHD external displays connected via two USB-C ports. Everything looks fine, except when I try to extend a screen (say, an Excel spreadsheet) across the two monitors, the portion of the spreadsheet on one monitor disappears.

I know on my work computer (on Windows 10), it works fine. Just wondering if Apple does or does not support extending a screen across two monitors?

thanks

MacBook Pro 14″, macOS 12.2

Posted on Feb 12, 2022 8:46 AM

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Answer 1

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Grant Bennet-Alder

Level 10

127,237 points

Feb 12, 2022 9:02 AM in response to djb8298

apple has supported "extended desktop" on Mac displays since at least 1987. But you need to have it set up that way, not mirrored, and be sure "displays have separate spaces" is OFF.

and:

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Answer 2

djb8298 Author

Level 1

4 points

Feb 12, 2022 9:21 AM in response to Grant Bennet-Alder

I was not using mirroring, but your 2nd suggestion on the Mission Control setting did the trick - so thanks!

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Extending screen across two displays (monitors)

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