Dell D6000 USB-C <> HDMI problem

[snipe122]

Hi,

I am running the Dell D6000 against a Dell 7480.

Everything works fine with the default driver version installed by Windows 10 (8.3.2008.0). Since I wanted to install later drivers, I tried drivers from the Dell page and also from the Displaylink page but non of those seems to work correctly.

Even a newer driver from Windows update (8.5.3459.0) is not working. The only thing that helps is rolling back to the original driver. I even tried the latest driver from DisplayLink page.

I have only a single Lenovo FHD 27" screen connected via HDMI. With the newer driver versions this screen is not detected, I just hear the USB plug/unplug sound all the time. WIth the original driver it works straight away.

Dell 7480 BIOS is up-to-date and also the latest Intel Graphics driver is installed (25.20.100.6472). Everything is running on Windows 10 1803.

When I connect the dock to a USB-A port everything works even with newer drivers.

What could be causing this issue?

Thanks for your help.