Only First HDMI Port works. 3 Port HDMI Plugable


I just received my 3 HDMI Port docking station.

Just the first one is working. Even switching cables, monitors and ports, only the first one seems to be working.

I have a macbook pro with latest software version and installed the display port software with also latest version.

Hope to receive some help on that.


Thank you for reaching out to us, I am sorry this is not working as expected and I am happy to help!

Just to let you know, we actually do not support this docking station with Apple computers and do not guarantee compatibility. DisplayLink, the manufacture of the chipset that drives the HDMI 2 and HDMI 3 outputs, provides a macOS compatible driver. Here is a link to the installation procedure ( ) for macOS.

Please let me know if this helps to get the HDMI 2 and HDMI 3 outputs working, and if not I can help to return the docking station for a full refund.

Thank you,

Plugable Technology

Unfortunately, it didn’t work.
The problem about returning is that I’ve delivered to Brazil. Actually paid more for the tax and delivery cost than the product itself.
Any ideia how to return and get a possible refund?


I am sorry this is still not working, if you would like to continue troubleshooting I would be happy to help.

For returning the docking station for a refund, the dock would need to be shipped back to either Amazon or directly to our warehouse. We can provide a prepaid USPS shipping label for returning the docking station from within the United States. For returning the docking station from outside the United States shipping would need to be covered by the sender, and we can only refund the original purchase cost of the docking station. Please contact me directly via email at ‘’ with the subject line ‘Ticket #322598 - Attention Pat’ and I can start the return process or discuss any details.

Based on your description of the behavior, our next step is to get some additional information from your system.

If you would, please keep the dock connected and all monitors attached (even though two are not working) and attach the output of our diagnostic utility PlugDebug ( ) to an email to ‘’ with the subject line ‘Ticket #322598 - Attention Pat’ and I can then examine the log files to look for any reason the docking station would not be working with this system.

Alternatively, would it be possible to test the docking station with a Windows based laptop with USB-C port ( for testing the HDMI 2 and HDMI 3 ports the laptop would not need to support HDMI DisplayPort Alternate Mode or Charging ). The DisplayLink software for Windows can be downloaded from here ( ), this is the recommended driver version for Windows 10 as of 2020-11-02. We can use this to determine if there is a fault in the docking station or if the display work with Windows it will help to narrow down the possible causes with in Apple’s macOS.

Thank you, I look forward to your reply,

Hi Patt!
I’m really happy to announce I could make it work!
Thank you a lot for your help and fast assistance.
I’m really really happy!!
Thank you!!


That’s great to hear! I am glad the dock is working with your system now, please let me know if there is anything else I can do to help, or if you have any additional questions.

I will go ahead and close this thread, please feel free to start a new thread or contact our support team via email at ‘’ if there is anything else we can do to help.

Have a great day!

Plugable Technologies