P10 shutting down when not in use

I have two p10 and one of them when not in use keeps going to orange instead of green on the screen to now when I have to reset it. I’m running two audio research 610t one of each. That’s it. I notice the one that keeps shutting off has screen when it on that keep creating horizontal lines going up regularly. I’m in montreal Canada and would need to fix this problem here. For the meantime I have to reset it not always and it plays when I’m listening and does not fail.
Please diagnose the problem. My other p10 good.