Displaylink ceases to work in 10.13.4

[Neo.aka.Darkman]

On Mojave Beta 3 driver is not working anymore. No Airplay. I see monitor in System Preferencies - Display. Monitor becomes active when Itake mouse cursor over there, but it is always black screen. (on this black screen I can see mouse cursor)

[Okibi]

Thanks Neo,

I had logged in to see if anyone had tried the third Beta of macOS 10.14

Sad to see no progress.

This issue needs to be made more public so Apple is forced to respond.

MC Ren you obviously didn't try apples dodgy USB-C to HDMI dongles before buying your displaylink product, they were absolute garbage that caused an endless loop of discovering the first monitor, refreshing, discovering the second monitor and losing the first monitor, refreshing, then discovering the first monitor and losing the second monitor ... and so on.

[Neo.aka.Darkman]

Originally Posted by Okibi

This issue needs to be made more public so Apple is forced to respond.

As I've already said above: it's all about external graphic adapters. In 10.13.4 Apple began to provide native support for external GPUs. They have rewritten large parts of IOGraphicsFamily.kext, what brings us to the point, that all virtual graphic adapters are now unusable.
DisplayLink has reached some progress using AirPlay Technology, but since Mojave beta 3 it's broken.

[Wozzy]

Originally Posted by Neo.aka.Darkman

As I've already said above: it's all about external graphic adapters. In 10.13.4 Apple began to provide native support for external GPUs. They have rewritten large parts of IOGraphicsFamily.kext, what brings us to the point, that all virtual graphic adapters are now unusable.
DisplayLink has reached some progress using AirPlay Technology, but since Mojave beta 3 it's broken.

You are testing beta software on a developer release and you expect it to work

DL need to get a final driver out for HS first. Enterprises that use DL are not going to want to distribute beta software.

[donluca]

Originally Posted by Neo.aka.Darkman

They have rewritten large parts of IOGraphicsFamily.kext, what brings us to the point, that all virtual graphic adapters are now unusable.

Wait, so if I put that kernel extension from a 10.13.3 installation over to my actual 10.13.5 displaylink will work again as intended?

I remember I did the same with an audio extension to get Integer Playback again, maybe it could be a nice workaround without re-installing everything from scratch?

Please let me know if anyone has tried this.

[daan]

Originally Posted by donluca

Wait, so if I put that kernel extension from a 10.13.3 installation over to my actual 10.13.5 displaylink will work again as intended?

I remember I did the same with an audio extension to get Integer Playback again, maybe it could be a nice workaround without re-installing everything from scratch?

Please let me know if anyone has tried this.

Yeah this might be worth exploring, on a hackintosh. Anyone got time for it?

[donluca]

Tried it on my Mac and unfortunately didn't work.

The old IOGraphics kernel extension is correctly loaded and working as is the displaylink driver, but unfortunately it doesn't work, which means that there's more to it than that single kext.