Ok, so the screen in the headset works.
In an ill judged attempt to hard reset, I tried to take the headset out of direct mode and from that point on no matter what I removed and reinstalled plugging in the vive, killed the main pc display. I tried different ports but nothing.
When the screen did work it decided that the headset was the main display and so I got a small window onto the desktop with no way to see what I was doing on the main screen. I've reluctantly decided do a Windows OS reset and will reinstall everything one by one to see if I can get it going, but at least I know the different bits all work! Just not all at once
