Only one of my two external monitors now work

[fredric100]

Originally Posted by rmandelbaum

My mac OS updated on my Mac Book Pro to 10.13.5. My multiple displays stopped working. I downloaded the lates version of Displaylink (beta), this partly solved the problem. I have the primary mac book display one one of my external displays stretched, this is what . want. The other external display is mirrored and is not sin the the arrangement tab. I only see two, the main and the one external that is acting as I want.

I should add I am using a Targus USB docking device that is DisplayLink enabled

Any help here would be greatly appreciated.

I have the same problem.

When I connect a SECOND external monitor via USB (DisplayLink) to my MacBook Pro, it mirrors my primary monitor. I cannot configure it as a desktop extension. Only the first USB (DisplayLink) monitor will function as a desktop extension.

MacBook Pro (13-inch, Mid 2012)
OSX High Sierra 10.13.6 (17G65)