M Surface pro 4 screen recently started flickering jumping. It started a little while after the anniversary update. It was fine prior to this.
If I have a full screen application like a game open, I do not see the issue, but once I minimize, the problem is there. It comes and goes whenever. There is no pattern. I did notice that it happens more often with an external monitor plugged in.
It did get noticeably better since updating to 14393.222 but since updating to 14393.321 it has gotten worse again.
I tried uninstalling video drivers but that didn't work.'
I noticed it also happens more when an external monitor is plugged in.
Today I even saw it happening during the surface boot screen. so now I'm starting to think it's a firmware issue.
This is what loos like: