TBT3-UDV USB-C to HDMI not working on Macbook Pro 2017-2017

I have a setup with 2 external monitors (only FHD). Both are HDMI connected. I am using the DP to HDMI connector that came with the dock and it seems to be working, but none of my usb-c to HDMI dongles seem to be working for the other monitor.

I have unplugged the DP adapter and the usb-c still doesn’t work. Both of my usb-c to HDMI adapters are from different companies and work great if I connect them directly to the macbook.

Is there something I am missing? I have rebooted the machine multiple times with no success.

Is there only a specific usb-c to HDMI that I can use for this?

Thank you in advance


Thanks for posting! I am sorry your TBT3-UDV docking station is not working as expected and I would be happy to help.

Thank you as well for the detail you provided and the troubleshooting you have already performed that is much appreciated.

To your question, the behavior you describe is not expected and I do not believe you have missed anything. While 3rd-party adapters or cables can and do work with our dock, we can however only guarantee the performance of our own products.

That said, given your description of the behavior we will want to examine some log files from your system to help determine the next steps. If you would, please send a System Report (instructions below) to support@plugable.com with ‘Ticket 219087’ in the subject line so we can match things up. Please also include the Amazon Order ID number for the dock purchase, available from amazon.com/orders (please don’t post either in our public forum).

Thank you in advance for your patience, and giving us the chance to help!

Plugable Technologies

System Report Instructions:

  1. Choose the Apple Menu -> About This Mac.
  2. From the window that appears, click on the ‘System Report’ button.
  3. A System Information window will appear. From the application menu bar, click on File -> Save… to save the information to a file.
  4. Attach the saved file to your direct email to support@plugable.com