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-   -   MacBook Air external displays are mirroring (https://displaylink.org/forum/showthread.php?t=67124)

evanp1 05-20-2020 09:13 PM

MacBook Air external displays are mirroring
Hi, I am using a MacBook Air (2019, Catalina) with a StarTech dock, DisplayLink 5.2.1, and two BenQ GL2460 monitors. However, the two external monitors act as a mirror of each other instead of two separate displays. I've followed the steps listed here https://support.displaylink.com/know...k-display-on-m , but it has not solved my issues. Any guidance on how to proceed would be great!

Thank you!

KatarzynaKowalczyk 05-21-2020 07:44 AM


First I would like to make sure, did you install the driver linked in the instruction or the latest one available on out website?

Thank you,

evanp1 05-21-2020 03:35 PM


Thank you for replying. I installed the latest version of the driver.

KatarzynaKowalczyk 05-22-2020 10:13 AM


Please verify in System Preferences, click Displays. Click the Arrangement tab.
Make sure that the Mirror Displays checkbox isnít selected.

Thank you,

evanp1 05-25-2020 06:27 PM

Hi, I tried that and it is not checked. I think if might be a problem with the dock I am using as the triple screen works on a different one in the office.

KatarzynaKowalczyk 05-26-2020 01:28 PM


Could you please collect logfiles that will show a bit more of what is going on in the background?
The instructions you can find here: https://support.displaylink.com/know...to-displaylink

Thank you,

daveatbd 05-27-2020 12:51 PM

I am having the same issue. I checked all the settings and restarted multiple times. I also uninstalled and reinstalled with restarts after each action. It kept mirroring the displays. The mouse could move over to the second display, but I could not interact with anything. Only on the primary display could I select anything. It was an odd mixed state. FWIW, I do also have my laptop open, so I am using 3 screens in total. I am on macOS 10.15.4. After wasting almost an hour trying to get it to work, I ended up going back to 5.2.1.

punkcoder 05-27-2020 04:40 PM

Experincing the Same issue on MBP 2019
2 Attachment(s)
I currently have three screens and the laptop. Mac OSX shows all of the displays, however the two that are connected to the displaylink system are mirroring. This is with the latest version of the mac drivers, previous version was working properly.

Catalina 10.15.4

jeral 05-27-2020 04:53 PM

I am also having the same issues. I just sent the logfiles as instructed in earlier post in this thread. I installed it this morning.

DisplayLink USB Graphics Software for macOS
Catalina 10.15, Mojave 10.14
Release: 5.2.4 26 May 2020

jeral 05-27-2020 05:06 PM

I paid attention and it is now working!
Thank you to Jakub for putting a post out early this morning. It is at the top of the Mac Software section. Putting it here as well. Once I installed the new "DisplayLink Manager App 0.5 Beta", it figured things out on its own.

Post Notice to mac users
Dear Mac users,

Notice to mac users, if planning to use the latest release of OSX please ensure you update to the latest version from DisplayLink. Updates can be found here: https://www.displaylink.com/downloads/macos

DisplayLink Manager App 0.5 Beta

The DisplayLink Manager app is a new way of enabling DisplayLink technology on macOS.
Beta version of the app is available for download from our website for macOS 10.15 Catalina. https://www.displaylink.com/downloads/file?id=1552

To find out more about the app and its features please read this article.

5.2.4 Driver for macOS

Latest 5.2.4 release for macOS is now available to download from our website.

This driver is compatible with all DisplayLink products and improves overall system performance, reliability, and security.

Full details are available on our website.

Best regards,
DisplayLink Team
Jakub Dabrowski

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