Hi,
Thank you for contacting us, I am sorry this is not working as expected and I am happy to help!
The UD-6950PDZ USB-C Triple Display Docking Station relies on two graphics technologies to support up to three external displays:
- USB-C DisplayPort Alternate Mode, an optional USB-C port feature which connects the computer’s graphics controller to the USB-C port is used to control the docking station’s “Display 1” output port-pair. This also requires connecting the docking station directly to the host computer’s compatible USB-C port using the original USB-C cable provided with the docking station.
- DisplayLink USB Graphics Technology, the DisplayLink software emulates graphics hardware to extend the computer’s display capability beyond the manufacturer’s design. This is used for the docking station’s “Display 2” and “Display 3” output ports.
For the non-functional display, please let me know which port it is connected to on the back of the docking station, each port is labeled just below the HDMI output.
Additionally, please let me know if the docking station is connected directly to the host computer using the original USB-C cable provided with the docking station, or if it is connected with another USB-C cable, or through another device or adapter.
Thank you for these additional details, I look forward to your reply email and we can proceed from here.
Pat
Plugable Technology
support@plugable.com