Displaylink ceases to work in 10.13.4

[slvrscoobie]

Originally Posted by AlbanRampon

Update: July 4th

Dear DisplayLink macOS users,

Installing macOS 10.13.4, or newer, will cause DisplayLink connected displays to go blank after the OS update when using DisplayLink driver v4.1. Extended displays continue to work as expected in macOS 10.13.3 and below.
Functionality such as Ethernet and audio, where implemented, is unaffected.

DisplayLink driver v4.3 beta 5 currently provides an interim solution with one extended USB display (720p or 1080p) on macOS 10.13.4, 10.13.5 and 10.14 first two developer previews, using Apple AirPlay® on machines with that feature. All additional DisplayLink screens will be cloning the primary display.
An FAQ details how to enable Apple AirPlay with DisplayLink display for extend or mirror mode.
The third developer preview of 10.14 has changed behaviour, as already exposed here. Displays using DisplayLink technology will be present in System Preferences - Display. The displays can be activated, and the mouse is visible, but otherwise the displays are black. Should you have already installed that OS version, simply use DisplayLink driver v4.3 beta 6 to force the AirPlay interim whilst the work continues.
We do not recommend using that OS version for extended desktop changes as it brings no benefit compared to previous versions. It also adds an undesired audio switch at reboot to be addressed.
When a new version brings value, we will obviously notify you.

Our team continues to progress towards a solution which would both restore full extended display support for multiple DisplayLink displays in a future release of macOS and defend that functionality in the future. As daily users of the technology ourselves, we truly understand how disruptive this loss of functionality affecting the full ecosystem can be. Despite getting closer to tell more about roll out, we stay unable to provide a time-frame or a date for release of this solution.
We will keep providing updates to this message.

Thank you for your extended patience. We appreciate your feedback and support.

Glad I read this! I just upgraded to Mojave after seeing it was working. (edit) Im on the 1st public beta, (10.14 Beta (18A314k)) and it works just like it did in 10.13.

Only issue is the "displaysleep 20 (display sleep prevented by AirPlayUIAgent)"

Just turned off auto update to prevent further issues until this is squared up

Edit - well Auto updates WERE turned off but it Still auto updated to public beta 2 (10.14 Beta (18A326h)) while I went out to run my dogs. setting is back on now that its back. and I installed beta 6, but all I get is mirroring. Hmmm

Edit 2 - now it SEEs the displaylink - seperate display, but its struggling to get it to actually be separate.

edit 3: got it after unistall/reinstall