How to connect 2 vga projectors to 2018 Macbook Pro

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How to connect 2 vga projectors to 2018 Macbook Pro

I have used a macbook pro mid 2012 retina scan for church display with Propresenter for years. It is connected to 2 VGA projectors using a powered splitter. I just purchased a new 2018 Macbook Pro with the 4 Thunderbolt outputs. Using a USB C to VGA adapter (Belkin) and connecting to the same splitter I get an error message telling me the USB device is drawing too much power. If I connect a single projector to the same Belkin adapter it works fine. I want to slave 2 projectors with the same images. I do not see much out there on this issue but I assume others use multiple projectors from a single source on USB C.

MacBook Pro (15-inch, 2018)

Posted on Aug 18, 2018 8:34 AM

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Answer 1

Aug 18, 2018 11:20 AM in response to bhoytgpt

to selectively mirror certain displays, use

System preferences > Displays > Arrange

Each blue box is an Icon, and they can be re-arranged, and the Menubar icon can be as well.

Drag a display Icon you want to be the same as another over the other, and they will merge into a slightly overlapping mirrored set.

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Answer 2

Aug 18, 2018 11:23 AM in response to bhoytgpt

You should be able to do a "test run" with one display and the Internal, just to see what it will look like. I don't have a screen shot handy that shows this feature, but it should show them nearly-overlapping, so that you could still drag them apart again later.

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Answer 3

Aug 18, 2018 10:42 AM in response to bhoytgpt

You can use two adapters in two ports and [√] Mirror displays.

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Answer 4

bhoytgpt Author

Level 1

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Aug 18, 2018 10:53 AM in response to Grant Bennet-Alder

That may work except in propresenter there is a control display and output display - can the system only mirror display the output and leave the control display separate?

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Answer 5

bhoytgpt Author

Level 1

8 points

Aug 18, 2018 11:21 AM in response to Grant Bennet-Alder

Thank you - I was not aware of this option. I will purchase another VGA adapter and give it a try!

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How to connect 2 vga projectors to 2018 Macbook Pro

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