My kids have been experiencing this problem when playing games. Games from the Oculus library and Steam library. They will be in the middle of game after have been playing for 10-20 mins when their screen on the headset goes out and a pop up on the desktop monitor say "Your headsets Displayport isnt plugged in" and we have to restart Oculus software. The sound also makes a pop from the headset, I assume thats from the VR crashing. The cable looks to be in good condition and they are not getting crazy with the cable. They are pretty stationary when it happens.
Things I tried
Things I guess Ill try next