USB3 Docking Station for Dell XPS 15
There is now a displaylink driver for Ubuntu. Installing this in Ubuntu 15.10 fixed all problems with multiple displays on the Dell D3100.
I'm using a XPS 13" (2015) and the same docking station as you linked to. I was mainly interested in a dual monitor solution with the added benefit of more USB ports. What you've probably read on this forum and other places is that USB 3.0 support on Linux is not optimal. I've tested the dock on Ubuntu 14.04 and 14.10, not 15.04
To sum my situation up:
The following does work with the docking station:
- Ethernet
- USB hub
The following does not work
- Power (The laptop does not charge via the USB 3.0 port)
- Display port (The screens are not extended. I have not tested the HDMI ports)
Regarding multiple display: daisy chaining with Display Port (MST) is supposed to work with Ubuntu 14.10/15.04. I upgraded from 14.04 to 14.10 and still only got mirrored screens. I'm trying to update the Kernel to 3.17 as we speak. I'll let you know if I succeed.
As you are on 15.04 I'm not sure how much of this applies to your pc.
Hope it helps.
Update The combination of Ubuntu 14.10 and kernel 3.17 made Display port MST work on my machine. Not via the Dock, but directly from the mini display port on the machine. I never succedded in installing the driver mentioned on cweiske's blog but as far as I could make out the needed drivers should be included on 14.10.
I'm going to leave my set up as it is for now. I've got two external monitors (connected via the laptop's mini DP), USB hub and ethernet via the dock, and have to connect a power supply directly to the laptop.
solution
After updating the kernel to v. 3.17 I lost WIFI. The final solution to this was updating to 15.04
So on 15.04 I'm using Display ports MST to use dual monitors, a separate power supply directly connected to the laptop and the docking station connected via usb 3.0 as usb hub and ethernet.