Dual screen/mirror screen with smartboard

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Dual screen/mirror screen with smartboard

Hi! I'm a traveling teacher and am plugging my macbook air (with an adapter) in to the smartboards in all of the rooms I travel to. I plug in with an HDMI and a USB. Sometimes, the smartboard mirrors my screen no problem when I do this. Other times, it goes into dual screen mode, which I don't want. It's annoying to have to drag all my windows over, AND the sound becomes an issue with dual screens (sound comes out of my macbook instead of the smartboard where I want it to). I don't have time to manually go in and change the settings when it does this. Is there any way to stop it from going into dual screen mode and just mirror my screen automatically when I plug in?

MacBook Air 13″, macOS 10.15

Posted on Oct 15, 2020 11:17 AM

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Answer 1

jeremy_v

Community Specialist

Oct 20, 2020 8:05 AM in response to teacher917

Hello.

Thank you for using Apple Support Communities. It sounds like you're experiencing some unexpected issues when connecting your MacBook Air to multiple smart boards. We'd like to look into this with you.

It is possible that each smart board might have different settings applied to them. This can cause unexpected behaviors to occur when attempting to use them as an external display for your MacBook Air. However, we can help share some resources that can sort this out. If you connect to a specific smart board that acts as an extended desktop, you can adjust your display preferences to mirror your Mac display. Please check out the following links:

Use external monitors with your Mac

Use multiple displays with your Mac

The same options would apply to your sound. If you prefer your sound to come out of the smart board, you can adjust your sound preferences as well. For guidance on how to accomplish this, click here:

Change the sound output settings on Mac

We hope this information is useful. Have a great evening.

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Dual screen/mirror screen with smartboard

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