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The original was posted on /r/hometheater by /u/Ryoka83 on 2024-01-21 20:40:17+00:00.
I have a long run HDMI that is causing me some weird problems, the cable is a 35' Amazon basics 18gbps fiber HDMI cable. It is connected to a Sony TV through a wall plate coupler and finally to Denon AVR-3600H. The ARC seems a bit finicky on this setup. When I turn off earc mode the audio cuts out momentarily anytime adjust the volume. The bigger problem however is that randomly the sound will cut out but picture will be fine. To fix I can either unplug and replug in the cable or force the TV to use internal speakers and then swap back to audio system. The strangest thing about the issue is timing. It seems to occur most often when I am moving around the room, rather than just sitting in the chair. Any ideas on how to troubleshoot the curious timing of the audio failures. Cable swapping while possible is a pain due to the in wall nature of the install.