USB keyboards don't work with a USB C adaptor on 2019 Macbook Pro

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Level 1

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USB keyboards don't work with a USB C adaptor on 2019 Macbook Pro

I have now tried two USB keyboards using a USB C adaptor that works for other devices in my Macbook Pro from 2019. Neither works. I have tried all the debugging techniques.

I can't use a USB C keyboard because these are fully split/separated ergonomic keyboards that are not made in any other form than standard USB. I have never had any trouble with a USB decide through these adaptors.

How can I make one of these keyboards work? If they can't work, I have to abandon my Macbook and get another computer as a medical necessity.

Please don't make me use Linux/X Windows, it would ruin my life!

:(

Posted on Sep 25, 2019 1:42 PM

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Answer 1

Sep 26, 2019 11:57 AM in response to rjurney

SMC reset procedure is MUCH more complicated than you describe. The correct procedure must be selected for your exact Mac, and you must follow it precisely. 2019 MacBook Pro have a T2 chip. No penalty for doing the procedure multiple times, and nothing is lost.

How to reset the System Management Controller (SMC) on your Mac - Apple Support

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Answer 2

TheLittles

Level 10

204,343 points

Sep 25, 2019 3:21 PM in response to rjurney

What are the models of these keyboards? Are they even Mac compatible?

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Answer 3

rjurney Author

Level 1

8 points

Sep 26, 2019 10:55 AM in response to TheLittles

I've read blog posts where these identical models were used with late model Macs, so it shouldn't be a compatibility issue.

The models are: R-60 Split Ergonomic Keyboard, Mistel MD600. The R-60 is the only electronic keyed split keyboard on the market that I've found. The MD600 is what I tried next. In case it is the USB --> USB C adapter, I ordered a $16 Apple adapter.

I held the power button down for 10 seconds after shutting down to try to reset the SMC or whatever. It didn't help. Under system report the bottom 3 USB buses are empty.

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USB keyboards don't work with a USB C adaptor on 2019 Macbook Pro

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