10.15.6, external display problem

Both screens are not displayed when connecting an external monitor after 10.15.6 upgrade.

Before the upgrade, it worked fine in version 10.15.5.

Is there any solution about this ?

MacBook Pro 16″, macOS 10.15

Posted on Jul 22, 2020 9:01 AM

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48 replies

Oct 13, 2020 2:17 AM in response to netpple30

I had the chance to try my Belkin adapter (Belkin USB-C to VGA adapter (F2**037)) with a 13 inch 2016 MacBook Pro running 10.15.6 and it works totally fine with that. So this seems to be a problem with the 16 inch MacBook Pro.

Jul 31, 2020 2:46 AM in response to netpple30

Funny enough, a 'display' profile is added each time you connect an external display. This is a new feature....

Jul 31, 2020 4:08 PM in response to Grant Bennet-Alder

This makes sense. I had a usb c to vga so I’m sure the adapter was fairly old.

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10.15.6, external display problem