Why Is There No Video Output With the TBT-UDH2 on Laptops Using MUX and Nvidia Advanced Optimus?

Last Update: August 28th, 2026
Article ID: 3919808

Applicable To

  • Plugable TBT-UDH2 Thunderbolt 5 docking station
  • High-end gaming or workstation laptops (such as Asus ROG models)
  • Systems equipped with both a hardware video MUX switch and Nvidia Advanced Optimus hybrid graphics

We are currently investigating an issue where the TBT-UDH2 dock fails to output video when connected to certain high-end laptops (particularly ASUS ROG models) equipped with a hardware video MUX switch and Nvidia Advanced Optimus. Because this is an active investigation, a permanent resolution is not yet available, but our support team is ready to assist you.

How To Proceed

To help us investigate your specific setup and provide the best possible assistance, please gather the following details:

  • Locate and record the brand and exact model number of your computer.
  • Locate and record the brand and exact model numbers of your attached displays.

By collecting this information, our support team will be able to assist you effectively and add your system details to our ongoing investigation.

If you are experiencing this lack of video output and your computer system matches the problem description, please reach out to us directly at support@plugable.com and include the computer and display details gathered in the steps above.

(Note: We will update this article as our investigation progresses and a permanent resolution becomes available.)