When using TBT3-UDZ with Dell P2719h with HDMI the monitor flickers

When using TBT3-UDZ with Dell P2719h with HDMI the monitor flickers. When I remove and run via HMDI and j5create monitor functions without issue. Have older HP EliteDisplay E241j as secondary monitor using displayport and have no issues.


Thank you for contacting Plugable support! Sorry to hear about this issue. I’d be more than happy to assist you.

We have a troubleshooting tool that helps us find out what is going on in situations like this. Please plug the dock with your monitor attached to it into your computer, then go to this page and follow the instructions there:


When emailing us the diagnostics, please mention ticket 348436 in the subject line of the email. We’ll then take a look and see if there’s anything that stands out and hopefully be able to make some recommendations to resolve this issue.

Please don’t hesitate to let us know of other questions.

Thanks again for contacting Plugable support and best wishes!

Joshua Henry
Senior Engineer | Product Owner
Plugable Technologies

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