OSX Mojave - Black screen with cursor

[vikas027]

Hello Guys,

I am facing an issue where my external displays are detected but the only black screen with mouse cursor is visible. The problem is exactly as mentioned here (https://support.displaylink.com/knowledgebase/articles/544783-displaylink-display-is-blank-and-only-shows-mouse) but for Windows.

These are my OS version and peripherals.

Laptop - MacBook Pro 13" 2018
Mac OS - Mojave 10.14 (18A389)
Display Link - 5.0 (13)
Targus (https://www.mwave.com.au/product/targus-usb30-superspeed-dual-video-docking-station-with-power-acp71au-ab63937) dock with USB output
Apple USB to USB-C (https://www.apple.com/au-hed/shop/product/MJ1M2AM/A/usb-c-to-usb-adapter) adapter


Interestingly, the same dock works perfectly when I connect my office colleagues' laptops.

MacBook Pro 15" 2014 on Sierra
MacBook Pro 13" and 15" 2017 on Mojave


Does anyone know any workarounds to this issue?

Cheers,
Vikas

[warlockuk]

If you have the workaround driver, it might be you need to grant permissions to the driver somewhere. There should be some detail on one of the threads.

[vikas027]

If you have the workaround driver, it might be you need to grant permissions to the driver somewhere. There should be some detail on one of the threads.

Workaround driver :confused: ? Let me try to find that thread

[warlockuk]

Workaround driver :confused: ? Let me try to find that thread
It's the one currently on the display link site; think it just went to 4.3 but prior to that it was beta...5 i think.

You go to Settings, Security & Privacy, and where it reads 'Allow apps downloaded from:' make sure App Store and identified developers is selected.

After install there might be a display link item there for approval; if so, enable it and reboot.

[vikas027]

It's the one currently on the display link site; think it just went to 4.3 but prior to that it was beta...5 i think.

You go to Settings, Security & Privacy, and where it reads 'Allow apps downloaded from:' make sure App Store and identified developers is selected.

After install there might be a display link item there for approval; if so, enable it and reboot.

Hey, I have already tried the same in vain :(

[mostof]

Now that Mojave is released, is DisplayLink going to release a driver that solves the black screen issue on 2018 MacBook Pros?

[ideepblue]

I got the exact same issue that two black screens with a cursor only.

Laptop - MacBook Pro 13" 2018
Mac OS - Mojave 10.14 (18A389)
Dell D6000 Dock
Display Link Driver - 5.0 (13)

[Pagany]

I work in a company as a IT support and we have a lot of Macs. The thing i noticed because i told my guys to use drivers 4.3 and not to update to newer versions of MAC OS is that when they did an update today to Mojave the old drivers worked like a charm. They were 4.3 drivers, and the new one are not working. Now the biggest problem is that i cannot install old 4.3 drivers on Mojave cause its not compatible. So right now im testing on MAC Pro 2018 to install 4.3 drivers on High Sierra and then to update to Mojave and see if that will work. That may be the workaround for now, and for the developers at Displaylink to maybe enable installation of 4.3 drivers on Mojave as well.

[vikas027]

Interestingly, the same dock works perfectly when I connect my office colleagues' laptops.

MacBook Pro 15" 2014 on Sierra
MacBook Pro 13" and 15" 2017 on Mojave


Does anyone know any workarounds to this issue?

Cheers,
Vikas

I have done some more tests and looks like there is something new in 2018 model laptops which have not been looked after in all DisplayLink versions of Mojave.

This is what I did -
- Created a bootable copy of my MacOS on an external hard disk
- Used the external hard disk (i.e. my MacOS) to boot my colleagues 2017 laptop
- Tried the USB dock and voila!! ...it worked as it should (have attached a screenshot hereby, her is a link (https://i.postimg.cc/g2mB7K1B/20180927_043752648_i_OS.jpg) too.)

Since my exact OS worked on my colleague's laptop, I can rule out any misconfiguration at my end. It has definitely something to do on the new 2018 laptops.

[brossow]

Am I the only one who gets a permission error when clicking the image in vikas027's post?

"brossow, you do not have permission to access this page. This could be due to one of several reasons:"

[mostof]

Am I the only one who gets a permission error when clicking the image in vikas027's post?

"brossow, you do not have permission to access this page. This could be due to one of several reasons:"

No you’re not.

[jgibson]

I got the exact same issue that two black screens with a cursor only.

Laptop - MacBook Pro 13" 2018
Mac OS - Mojave 10.14 (18A389)
Dell D6000 Dock
Display Link Driver - 5.0 (13)

Same issue.

Laptop - MacBook Pro 15" 2018
Mac OS - Mojave 10.14
Wavlink Doc
DisplayLink Driver 5.0

[vikas027]

Am I the only one who gets a permission error when clicking the image in vikas027's post?

"brossow, you do not have permission to access this page. This could be due to one of several reasons:"

That is strange, even I cannot see it and get the same error.

Anyways, here is a link
https://i.postimg.cc/g2mB7K1B/20180927_043752648_i_OS.jpg

[vikas027]

Update - As per the latest information on DisplayLink Mac OS page (https://www.displaylink.com/downloads/macos), one can use driver v4.3 Beta 6 (https://www.displaylink.com/downloads/file?id=1184) on 2018 laptops.

"10.14 Mojave
MacBook 2018 models (based on the Intel Coffee Lake chipset) running macOS 10.14 can experience black extended display(s) with only mouse cursor. DisplayLink driver v4.3 Beta 6 stays available to force an AirPlay extended display on these machines until a fix is distributed."

I can confirm that extended display works with one monitor, but when multiple monitors are connected, they still work as mirrored displays. :(

And I face some weird issues (random screen blackouts, mouse works in just one third of the screen) if I close the lid of the laptop.

[mostof]

Has anyone heard anything on a fix for this issue? The last email from DisplayLink announcing the latest drivers hints that the fix should come from apple.

[scorch968]

Has anyone heard anything on a fix for this issue? The last email from DisplayLink announcing the latest drivers hints that the fix should come from apple.

There's an email?

[mostof]

There's an email?
Yes, from an Alban Rampon on the 10th, quote:

“Some MacBook 2018 models on 10.14 may experience black extended display(s) with only mouse cursor. DisplayLink driver v4.3 Beta 6 stays available to force an AirPlay extended display on these machines until the OS fix is distributed.”

[vikas027]

Yes, from an Alban Rampon on the 10th, quote:

“Some MacBook 2018 models on 10.14 may experience black extended display(s) with only mouse cursor. DisplayLink driver v4.3 Beta 6 stays available to force an AirPlay extended display on these machines until the OS fix is distributed.”

Yeah, I have tried it. 4.3 Beta 6 still does not works on my 2018 MacBook Pro.

[ericpark]

I am having the same issue. please let me know if you find any solution for this.

[ericpark]

In my case, the mirroring is working but not extended monitor.
I have rebooted a couple of times. It does not work, unfortunately.

[mostof]

Even when it does work it is very buggy and doesn't support high resolutions. Max is 1080p.

[Phil.Scarr]

I've got a 2018 MacBook Pro 15 inch which is having the same problem. I'm using the release version of the DisplayLink drivers, version 5.0.1 :(

[jsonpi]

Same issue with 5.1

I'm using Mac 2018 10.14.4 and the monitor only shows desktop background with cursor. And also when I unplug and plug again they just show blank/black, unless I keep them connected and restart my mac.

Tried also v5.0.1 and v4.x, no one works.

Please fix it asap. it is very annoy. :(


Thanks