second monitor not waking up from sleep after using sidecar

I am using iPad Pro 2019 1"1, MacBook Pro 2020 13". I have my MacBook Pro set with dual monitors and I use my MacBook Pro with lid closed.

it works well except whenever I use the sidecar function with my iPad, and when it goes to sleep afterwards, one of the monitors doesn't wakeup.

When I open up MacBook Pro and go to arrangement, it shows both monitors. however, it doesn't send any signal to it.

The only think I can do at that time is to completely shut down and then turn it back up. Just restarting the MacBook Pro doesn't work.

MacBook Pro 13″, macOS 10.15

Posted on Jun 14, 2020 5:54 PM

Similar questions

1 reply

Jun 14, 2020 6:21 PM in response to hongseopkim

Closed Clamshell requires a specific set of procedures to enter, maintain, and exit.

Any conditions outside of those specified are undefined, and anything can and will happen.

Use your Mac notebook computer in closed-display mode with an external display - Apple Support

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second monitor not waking up from sleep after using sidecar

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