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Hello, I upgraded my MBP (2019) to Big Sur. When I plug in my external monitor through the dongle (and adapter between dongle and monitor), it is no longer recognized by my computer. It appears as an external device on my desktop. Any thoughts how I can get the external monitor that used to work great with Catalina to run with Big Sur? Thank you!
MacBook Pro 13″, macOS 11.0
Hello there Porter667,
We're happy to help with this trouble you're having with the external monitor after updating to macOS Big Sur. To get this issue resolved, we'd like to have you try resetting the system management controller (SMC), and the nonvolatile random-access memory (NVRAM). Test the external display after performing each step:
How to reset the SMC of your Mac
Reset NVRAM or PRAM on your Mac
Let us know if this helps you.
Have a great day!
Hello there Porter667,
We're happy to help with this trouble you're having with the external monitor after updating to macOS Big Sur. To get this issue resolved, we'd like to have you try resetting the system management controller (SMC), and the nonvolatile random-access memory (NVRAM). Test the external display after performing each step:
How to reset the SMC of your Mac
Reset NVRAM or PRAM on your Mac
Let us know if this helps you.
Have a great day!
Big Sur vs. external monitor
