Development is in progress with a third party.
An error occurred while saving the commentAbraham Fine commented
I have a similar issue. I use a Macbook Pro with 3 external monitors via a Thunderbolt 2 dock. One monitor is plugged in through the displayport that is passed through the dock and the other two through a displaylink DL-6950 device hanging off the USB 3 port of the thunderbolt dock (a StarTech USBA2DPGB). So clamshell mode works great with version 0.5.25 of displaylink manager.
The issue comes when I disconnect my Macbook Pro. Once I disconnect and open the lid the screen stays black. I then need to restart the machine.