I recently purchase a Plugable USB-C 4K docking station to complement my HP Spectre x360 15" (2020) laptop.
I purchased the dock specifically to run at least two external monitors as extended desktops of my laptop screen. I have done this before on other computers using other docks using the two monitors I am trying to use now with this HP laptop and this Plugable dock.
The dock appears to work fine except that the HDMI out port is not providing a connection to a monitor regardless of whether it is the only monitor being driven or if another monitor is driven by the Displayports.
I have tried multiple monitors and it is not a cable issue or a specific monitor issue.
When I view the Display control screen in windows - the external monitor driven by the HDMI port is “detected” and shown as a very small display next to the other monitor(s) detected by windows, but I cannot extend the desktop to the monitor driven by the HDMI port or have that monitor be the sole display while hooked to the HDMI port.
What are some good next steps troubleshooting wise?