I've noticed this issue has started occurring only in the last two weeks on my Surface Book (about 1 month old). Especially when I start the computer, or when I reopen the lid or jostle it, the screen very briefly flashes black and the disconnect/reconnect sound plays up to four or five times, although the magnetic lock does not click and the tablet itself doesn't actually detach at all.
Similarly, I have only recently begun having issues with the graphics card. I've been running Fallout 4 on low settings and found (not every time) that moving the screen on the hinge or even jostling the computer can cause it to either go to black screen and then recover with the "NVIDIA has stopped working and recovered" bug people have been getting on these forums, or less recently going to an orange screen (used to be the blue screen) with a :( and a kernel error. (Will update when I find the error code again.)
I'm wondering if anyone else is getting this or it's specifically my hardware issue? I'm going to reinstall the graphics drivers and give the pins a careful clean but would like to know of any other experiences or fixes.
Thanks