Black screen with Apple TV 4k 2017

Hi,

I have a problem with my Apple TV 4K 2017. Since 7-8 months. Each time... 10-20 minutes after I open my tv and use Apple TV. I have a black screen. That's stop the sound. I have black screen 5-10 seconds and all come black after. I have this problem only after I started the TV, after... later I don't have this problem again.

I have a Samsung TV UN55MU6300... Audio Receiver Sony str-dh790. All Connected with HDMI cable UGREEN 8K HDMI Cable, Ultra HD High Speed 48Gbps HDMI 2.1.

I tried to change the cable. Change the input on receiver and on TV.

Have you a solution ?

Thank you very much :)