D6000 Dock with OS X Catalina 2 external monitors

by Micah Armantrout   Last Updated June 30, 2020 01:12 AM

I have two 27 inch monitors connected to a D6000 dock which connects to a Thunderbolt 3 port on a Mac though it is USB C from the d6000. The Mac is a 2020 Mac book pro. The D6000 is supposed to support OS X.

But the two external monitors mirror each other, I want them to extend

the 2020 Mac book pro is supposed to support two external monitors


but the two monitors just mirror each other and don't extend.

the mirroring check box is not checked

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