I am thinking about buying a USB 3.0 video adapter (like those) to use with my laptop, when it is docked in a docking station. Docking station only has one video output (DisplayPort), but maybe I could have a second one via a USB 3.0 video adapter.
How well (if at all) do those work in Ubuntu? What kind of performance can I expect? (I intend to use a second monitor for programming and office work, not very demanding applications video-performance-wise, but it would be nice to know what can I expect: is playing video not out of the question? Games?)
Any specific recommendations?