Hello,
I bought 2 headsets in May for my Arcade, just to see how clients would like it. My area has some glass and light spots. One headset works perfectly, it gets hot but no grey screens or loss of tracking at all. The other one, well first I blamed the glass walls, I covered them, then the light, I blocked it. The gray screen keeps coming after playing for about 30 to 40 min.
Both computers are exactly the same, bought them with the same components, GPU GTX 1070, i7, 16 RAM , Windows 10.
Well after changing the HMD to the other computer and VR area, the HMD showed gray screen after 20 min.
In counclusion, the HMD has a fault, too bad I couldnt test this before because I got the computers a month ago.
My last try is changing the USB cable from the headset, I'm doing this tomorrow and let you know.