Dell P2419H scanning for signal when Macbook Pro is closed

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Dell P2419H scanning for signal when Macbook Pro is closed

Hi,

I bought P2419H today and connected to my Macbook Pro. When I close my laptop, the monitor scans for a signal every 30 seconds or so. When I tap the keyboard, it comes back on and asks for my password. Basically, I have to re-enter my password every 30 seconds.

When the laptop is open, everything works fine. How can I make my screen on without constantly checking for a signal? I use the same laptop at work, and my Dell U2715HC works without a hitch.

Any help would be much appreciated!

Thank you!

Posted on Aug 7, 2020 6:42 AM

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Answer 1

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Chris_D13

Community Specialist

Aug 10, 2020 9:24 AM in response to vm100in

Hi there vm100in,

Thank you for using Apple Support Communities!

It sounds as though you’re looking to use your MacBook in closed-display mode with an external display.

You’re in the right place, we’d be glad to assist in seeking a solution.

Below is a resource that can help:

Use your Mac notebook computer in closed-display mode with an external display

This resource includes quick checks and steps that can help when using your MacBook in closed-display mode.

We hope this helps,

Cheers!

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Dell P2419H scanning for signal when Macbook Pro is closed

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