DisplayLink mirroring/extended mix after Catalina Update
 

Hi,

I have a 2014 Mac Mini with 3 FullHD displays attached (HDMI, DP and one attached via Dual Display USB3 adapter using the HDMI). Mac OS is upgraded to 10.15.1.

The DisplayLink connected display mirrors the contents of the HDMI display but the mouse behaves like it is on an extended display (I can move the mouse across the screen like on an extended display and wiggle it to make the mouse pointer bigger). Mac OS even opens programs on the "extended" display that can't be seen or used.

The kext (5.2.54) is loaded, DisplayLinkUserAgent has permissions in Screen Recording and Accessibility (Bedienungshilfen).

I tried:
I reinstalled the 5.2.1b3 DisplayLink drivers.
I downgraded them to 5.1.1 (and reinstalled 5.2.1b3 after the display didn't even start).
I started recovery mode and rebuilt the system cache.
Nothing helped.

Best
Sven

Sven,
Please gather logs using that tool:
https://www.displaylink.com/downloads/file?d=66

Here is the log file.

Hi,

I have exactly the same issue with the following setup and 5.2.1 Beta 3:

MBP mid 2015
- Internal Display
- Two external FHD Displays connected via Display Link Docking Station

I uninstalled Beta 3 and went back to Beta 2. With Beta 2 the error is not existing in my envirnoment.

Best Regards,
Andreas Klausing

Svenh
I was analyzing your logs, but all looks fine.
Can you test yours setup with 5.2.1 beta 2 as aklausing did?
That would help me to identify the problem.

You can download it from here:
https://www.displaylink.com/downloads/file?id=1433

Can you also submit output of command:
ioreg -l > ioreg.txt

I would really appreciate that :)

Hi Andreas,

Beta 2 did the trick. All displays are working again.
Thank you!

Thank you too, lspintzyk!

Best
Sven

Having same issues - Beta 2 didn't work
 

I'm having a similar issue. I've updated to Mac 10.15.1 and Beta 2 but my monitors aren't working. USB ports on dock are dorking just fine

I fixed the issue on my own

It appears that this issue has returned for 10.15.2 - same symptoms of mouse can access across both displays, but image is mirror of display #1.

Spec:
- iMac 14,2
- HP USB 2.0 Docking Station (HP HSTNN-S02X)
- Driver 5.2.1 release


However, I did the cheeky thing of finding the "DisplayLink Manager" alpha 0.1 and it works perfectly!
As I can't see it mentioned/linked elsewhere - i wont link it.