The question is simple and was exposed here before. Two monitors connected to a hub and from the hub 1 single USB-C cable to the Mac.
3 monitors in extended mode in W10 working as they should (W10 in the same MacPro bootcamp)
2 duplicated monitors in MacOS Catalina (Jun 2020).
Soon we leave to Mars and Catalina yet does not support this? What is this madness?
MacBook Pro 15”, macOS 10.15
Before replying "standard" answers, read the whole post I did with the links. If the solution were that simple, I wouldn't be asking. Let me put another image to see if this is understood:
MacOS recognizes 2 monitors as one. It's incapable of distinguishing the 2 external monitors attached to the thunderbolt hub.
This is what I get from the Screen Preferences panel:
Again, this is due to the incapability of MacOS of supporting Multi-Stream Transport (MST). This is a OS/Software issue, not hardware incompatibility. Booting with the Mac using Bootcamp with W10, this works fine, the 3rd monitor is recognised as it should in Windows.
Thanks anyway for trying to help.
juan josefromtorrelodones wrote:
The question is simple and was exposed here before. Two monitors connected to a hub and from the hub 1 single USB-C cable to the Mac.
3 monitors in extended mode in W10 working as they should (W10 in the same MacPro bootcamp)
2 duplicated monitors in MacOS Catalina (Jun 2020).
https://discussions.apple.com/content/attachment/4c0c372b-6ceb-47fa-ba92-5a074cd0c923
Soon we leave to Mars and Catalina yet does not support this? What is this madness?
//:0
Use external monitors with your Mac https://support.apple.com/en-us/HT206587
Call Customer Support (800) MY–APPLE (800–692–7753)
MacOS does not support MST (yet). Ever?
