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The arrival of HDMI 2.2 technology ushers in a new era of A/V potential, which is great news for enthusiasts and future-proofing fanatics. It might be a little while before every device on the market ...

Flickering or intermittent black screen often signals an HDMI cable is failing; swap device to confirm. Crackling or missing audio can be HDMI-related; try a different cable or source to isolate it.