Good discussion; however, on a pretty sad topic.
I really don't want to use the USB-C port as I invested decent money into a Microsoft dock.
Wanted to share some additional observations:
- Appears to have less issues with only one external monitor (use a LG Ultra HD 4k via DP)
- The other monitor I used was sometimes making an interesting sound when or before having issues (flicker, on and off, etc.)
- I used different power outlets but it didn't seem to have an impact
- Lots of issues with display refresh rates and kind of conflicts between intel graphic command center and windows system tools...e.g. the 4k display went from 60hz randomly to 30hz and the other monitor (1920x1400) went to 1920x1080 which distorted the picture...
Since this is the second SP7 with sort of identical issues it has to be HW or lots of other users would complain as well. Using a second or more monitors should be pretty common place, particularly in these days. Maybe they had a batch of SP7s with some small manufacturing issues and I (and you) just all happen to have them....changing might be the only option. Darn it, it takes always hours (even with OneDrive etc.) to have it all working again...no fun in that...
Theo