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Haseebskhan Author

Level 1

8 points

Thunderbolt display 27" not working on catalina and macbook pro 16"

I recently bought the thunderbolt display and I am using it with thunderbolt 3 to 2 adapter (original apple). When I plug it into the display nothing happens.

I am using Catalina 10.15.6 on macbook pro 16"

I tried to connect it to an old macbook running older version of macos having a thunderbolt 2 port the display works fine which proves that the display is working but when afterwards when i connect it to my macbook (using the adpater) it magically starts working until i shutdown my mac and check it the next morning it doesn't wakes up.

So i believe it somehow gets triggered when i use it on older mac.

I have repeated this a couple of times and it works fine.

I believe there is a problem with the macos Catalina.

Any solutions?

MacBook Pro 16″, macOS 10.15

Posted on Aug 16, 2020 1:38 AM

Top-ranking reply

woodmeister50

Level 7

20,503 points

Posted on Aug 16, 2020 8:14 AM

With the two connected, do a PRAM reset.

https://support.apple.com/guide/mac-help/reset-nvram-or-pram-mh26871/mac

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Thunderbolt display 27" not working on catalina and macbook pro 16"

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