Same here on a K33970 I thought I was really close after the dmesg below but I'm giving up all hope now and return the device.
Code:
59.132364] usb 4-3: new SuperSpeed USB device number 2 using xhci_hcd
[ 59.146428] usb 4-3: New USB device found, idVendor=2109, idProduct=0811
[ 59.146438] usb 4-3: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 59.146444] usb 4-3: Product: DU3200 3.0 Dock
[ 59.146448] usb 4-3: Manufacturer: Goodway
[ 59.147246] hub 4-3:1.0: USB hub found
[ 59.147553] hub 4-3:1.0: 4 ports detected
[ 59.421486] usb 4-3.1: new SuperSpeed USB device number 3 using xhci_hcd
[ 59.432958] usb 4-3.1: New USB device found, idVendor=17e9, idProduct=430f
[ 59.432968] usb 4-3.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 59.432974] usb 4-3.1: Product: Kensington USB3.0 Video Dock
[ 59.432979] usb 4-3.1: Manufacturer: DisplayLink