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Level 1

4 points

External screen doesn't working after update to Big Sur 11.2

Hello!

I have an MacBook Air M1 and CalDigit TS3 Plus Dock with external 4k screen.

Just updated Big Sur to 11.2 and external screen doesn't working any more. After connecting of thunderbolt dock cable screen will be waked for some seconds and goes off, as it will be not recognized by MacBook. Restart of all devices and so on doesn't help too.

Btw. I have second external screen connected over pluggable-DisplayLink adapter and this screen works as expected. Seems that CalDigit Dock has an issue with 11.2 update.

Does anyone experiencing the same issue?

MacBook Air 11″, macOS 10.15

Posted on Feb 2, 2021 3:38 AM

Best reply

BuHTope3 Author

Level 1

4 points

Posted on Feb 16, 2021 10:51 AM

This issue has been resolved. At the same time within Big Sur update, goes DisplayPort on the ext. monitor broken. HDMI input is still working, so I'm using DP -> HDMI cable. Took a while to realize what actually the problem is.

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External screen doesn't working after update to Big Sur 11.2

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