My setup: (all latest firmwares). 100% streaming through ATV4K. Mainly YouTubeTV, Netflix, HBO, AppleTV+.
ATV4K → arcana input.
Arcana eARC out → Sonos Arc.
Arcana HDMI out → LG B8 HDMI ARC
problem: when tv is turned off (sleep), when powers back on, ATV audio setting has turned DA off and no sound through Sonos Arc. If I restart ATV4K, DA comes back alive and sometimes then works perfectly until next sleep cycle or the DA sound is very broken. Then if I unplug the Sonos arc, it works perfectly.
note: this started between May 2021 and Feb 2022. I was not using ATV during this time. Worked perfectly before this time. Same 8K ultra fast HDMI cables as prior.
any ideas what might cause this. Appreciate any advice..
Best answer by Mr. T
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