Since Thunderbolt 3 is prominently advertised in this announcement, can I safely assume that Thunderbolt 3 support has stabilized in Ubuntu at this point? And if so, are we able to use external GPUs over this interface in Linux now?
Thunderbolt 3 somewhat works for me, although I'm not sure if that's down to the OS or the adapter I'm using. Using the latest Ubuntu its fine once its working, but it will take me two or three attempts plugging the adapter in for the HDMI output to actually work, between which the machine will crash hard with a garbled internal display.
