Monitors not registering after Catalina Upgrade
 

I was using a Lenovo Thinkpad Hybrid USB-C with USB-A dock (PID 0x6015) to connect my 2019 macbook pro to two external monitors.

While I was using macos Mojave the monitors connected correctly and everything worked fine. Once I upgrade to Catalina (10.15.5), I cannot get the computer to recognise that there are monitors connected to it.

I've tried reinstalling the driver and allowing screen recording. I've checked in privacy/security to try enabling the kernel extension, no displaylink extension shows up.

I've tried installing the displaylink manager, both with and without the driver installed. When the manager is installed, it doesn't show up in security/privacy to allow screen recording.

When I look at the device in the USB bus, I can see an entry for 'integrated RGB camera', which I think might be the camera attached to one of the external monitors. I've attached a screenshot with the USB device tree and some other information.

All the hardware is definitely fine, this setup worked perfectly before the catalina upgrade. The mouse, headphones and keyboard attached to the dock all also work fine. I've tried everything I can find in this forum and/or on troubleshooting pages, nothing seems to work. Can someone help me get my monitors to work?

Hello,

Thank you for reaching out to us on the forum.

Could you please follow this link and gather log files for me? They will be needed for further analysis.

In case if you would like to contact us by email please send the log files with your description to this email address: technical_enquiries@displaylink.com
This will allow us for more clear and direct contact but if you wish we may stay here on the forum.

Best regards,
Jakub

Hi Jakub,
Can you help me in my open thread?
Thank you!

External Monitors stop working after Catalina upgrade.
 

Hi!

I have one external montor (dongle) + USB-C 4k LG monotor. Everething worked fine.
After Catalina upgrade monitors cant be detected. No hardware issue for sure.

I install Disply Link driver and Display Link App.
Do you have any suggestion what I need to do to make my monitors alive?

thanks and regards, pavel

Dear users,

To address your issues separately and directly I encourage you to gather the log files by following this link as they are needed to provide case analysis.

Also, please send the log files with your description to this email address: technical_enquiries@displaylink.com

Thank you for your time and patience.

Best regards,
Jakub