Problems with Dell D3100 and Inspiron 13 7000 2-1

[dell21]

Dear team,

since hours I am trying to get the Dell D3100 docking station to work. I can use it as USB hub and network adaptor, but have not managed any screen output. I have tried several versions of the drivers, reboots, and so on.

On the USB3.0 port of the computer, with the USB 3.0 cable, the dock is NOT recognized as a USB Graphics device. It works for the mouse, but also not as an Ethernet adaptor.

Using a 2.0 port or the 3.0 port with a USB 2.0 cable, the device is recognized as USB Graphics Adaptor twice, but no screen output is possible.


I have run the support tool in this stage, connected via USB2.0, the display directly via HDMI to the laptop. File attached here.
Any help appreciated - I would love to use the dock rather than giving up and sending it back...

Best,
AB_Dell21