I want to have the two external displays have an extended display, and not just mirror each other. My Mac is recognizing both of the external displays, but it is acting as if the external displays are one display, so the two external displays are mirroring each other and my mac is the extended screen. I am trying to replicate that setup at home and am having some issues. At work, I have been able to connect my computer to a dock that is connected to two displays and use those two displays as one extended display. I am using a 2019 15-inch MacBook Pro and running version 11.1 of Big Sur. Mac recognizing dual external displays as one monitor Hi all, My mac specifications (MacBook Air (M1, 2020) - Technical Specifications) seem to say that I can only have one external, but are little vague as to whether I can do more at lower resolution, and I thought I heard it was possible?ĭo I need a monitor with a usb c output or is it just not happening? I tried connect the extra port on the macbook to each of those but that did not change anything.

There are several usb C ports on the dock- usc ss and thunderbolt. Only the HP shows up in displays in settings. I have the thunderbolt cable going out from the dock into the macbook air.īoth monitors show the desktop extended from the built in display, but both external monitors are mirrors of each other and show the same content. (HDMI seemed to flicker even with one monitor-and it flickered with both hp and sceptre.) I have two monitors (hp e223 and sceptre m25) on displayport cables going into the dock. Macbook Air M1 2020 - Can have two external monitors with different displays I have a thunderbolt dock: hp thunderbolt dock 280w g4.

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