I had a weird experience in that the second screen(s) (connected via a USB dock) would be laggy if the chosen 'primary' monitor was not the one directly connected to the computer (either built-in monitor for a laptop, or directly connected via HDMI / DisplayPort).
If the primary monitor was one of the two connected to the dock, they would be horribly laggy.
That problem seems to have gone away, but I've changed machines and Linux distributions since then. I think it was with Ubuntu and using a Toshiba Dynadock.
If the primary monitor was one of the two connected to the dock, they would be horribly laggy.
That problem seems to have gone away, but I've changed machines and Linux distributions since then. I think it was with Ubuntu and using a Toshiba Dynadock.