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When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.
I have tried to connect my external monitor to my new Macbook Pro using the various tips on Apple's site and the general Web, i.e. restart, sleep, update all software. One strange thing is that the Displays in System Preferences refuses to show me the Detect Monitors button despite holding down the option key. The monitor and the cable are fine because they work on my older Macbook Pro.
Any ideas?
MacBook Air 13″, macOS 10.15
Hey there, stuburgess!
From your post, it sounds like you are working on connecting an external display to your MacBook Pro. We’re glad that you reached out to the Apple Support Communities. We want to try and help get you pointed in the right direction.
To start, are you following these steps when you attempt to connect the MacBook Pro to the external display: Use an external display with your MacBook Pro. If not, please start there.
Also, this link provides helpful details, such as information about how many displays you can connect to your Mac and what it requires for you to connect the display to your Mac: Connect a display to your Mac.
We hope this information helps you out.
Take care!
I did have a similar issue with my external LG 32 4k Monitor. I unplugged the monitor from power for a while. Plugged it back-in to the MBP and re-powered the monitor.
After that the monitor was recognised by the MBP M1Pro again and is working fine since. Strange, but true ;-)
what model-year MacBook Air 13?
what make&model display?
what cables and adapters EXACTLY -- please mention EVERY item in the chain.
Same here. My second monitor was working this morning, I updated to Monterey 12.3 and now the second monitor does not work at all. I've tried *every* suggestion I've been able to find.
Thank you for the tip. I did the exact same thing and both of my external monitors are now working.
What a about a macbook air? Having the same issues and have tried everything you mentioned
Be sure that Apple support has heard from you and they file a trackable Bug Report on your behalf:
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External display not showing (Monterey 12.1)
