This is driving me crazy, and I really want to understand the cause of it. My Yamaha and LG TV are connected by eARC port. I run apps from my TV, such as Apple TV and Prime Video. By chance, I have discovered that if my HDMI cable is "High Speed, HDMI Cable 2.0 (4K) 18Gbps" everything works fine. However, if I connect TV to AVR by a higher spec cable for example "Certified 2.1 8K HDMI Cable 48Gbps 4K120Hz", I have following issues: Yamaha display flickers and sound keeps cutting, and even nothing plays I can hear low popping sound time to time. I know this is not the cable issue as I have tried two different 8K HDMI cables which are different brands.
I was wondering what is causing this? By using "High Speed, HDMI Cable 2.0 (4K) 18Gbps" am I compromising anything. I either stream or watch Bluray or 4K movies played by a Panasonic Blu Ray player which output 4K60Hz maximum. I have no game console.
