I have the Reverb for three weeks and I had the same issue since the first week. Initially I thought that it was a failure from the device, I notified the problem to HP in Spain, and they sent me a new glasses in a couple of days. I tested the new HP Reverb and during the second day I had the same issue: black screen, in DCS and other aplications.
So, everything seems to point to the cause is not the device, but a software problem. I have done tests of all kinds, reinstalling windows 10, steam vr, beta and non beta, changing usb ports, etc., without results so far.
So I need help too... :llorar: