I'm on my second surface 3, sent the first one back because of the same issue which is, no matter if it is plugged in or on battery after about 2 minutes the screen goes blank. It does so regardless of the display setting, it will dim even if plugged in and set to never dim. I like everything about the surface 3, but this is annoying. Microsoft suggested a reset, which I did twice on the first one before sending it in for a replacement. Auto brightness is turned off. Anyone have any suggestions? Thanks
Finally talked with a Tech, who did more than to just tell me to reset it. This guy, "James" remote accessed the surface and after about an hour and a half had it fixed.
Do you know what the problem was? And how to solve it? (could be valuable if someone else has the same issue)