Ubuntu 17.04
Gnome
Toshiba Satellite C55-C5240
Dual Dell 23" Monitors (P2314HT)
DVI Dual-Monitor Docking Station for Laptops:
https://www.startech.com/Cards-Adapt...vi~USB3SDOCKDD
You can see the mouse move across all monitors like normal. However it fails to render any apps or backgrounds. Ironically if you teamviewer into the box you can see all the monitors and windows just fine.
I have attached the Linux Support Tool dump for my laptop.