Leaderboard

This was noted in my E7x70 guide. It only happens on clean boot. If system has slept once, it won't happen. You could try adding EDID, it worked on my E7270 but not my E7470. You don't really need to put it to sleep, just close lid, the external monitor comes on as primary. You can then open the lid and it'll swap back.

i guess it needs the display to be reinitialized. why i do not know but display port tends to have this quirk.

have you tried closing the lid to the laptop then opening it again when this occurs?