I can't find anything on this so far. My Vive Pro has been rock solid, and then starting last night, having this issue;
Start SteamVR, and it says the headset is tracking and looks ok, drivers up to date.
Lenses are black, but then flash white 3 times, and go black again. I tried re-plugging in cables, different video port on video card, rebooted windows, restart Steam, hitting the button on the left side of the HMD - no change.
However, if I let the headset sit, it does go into standby mode. If I leave it alone for a few minutes, suddenly the headset just turns on, stops flashing, and works as normal. I turn off SteamVR, turn it back on, it goes back to flashing white 3 times in a row, and I have to wait a few minutes for the lenses to come on and work again. Anyone have a clue on this? It's a 3 flash pattern every time, which must have a meaning?
-Windows 10, full updates.
-GTX1080ti, patched to current drivers.
-Full Vive Pro setup, including the 2.0 controllers and lighthouses.
My original standard Vive never did this in the 2 years I had it. I don't know if the Pro HMD is going out, if it's needing time to warm up, a driver issue, etc.