My Q60 (75) TV started losing connection to JBL 9.1 unless I toggle HDMI-eARC Mode in expert settings from Auto to off and back to Auto. In this case I get sound from the bar immediately, but only if I have TV Speaker selected in Sound Output (both TV and the bar produce sound concurrently, I usually set TV sound volume to zero). Once I select Receiver (HDMI-eARC), it either immediately disappears from the list of Sound Output sources (only TV Speaker and Optical are available), or this happens in a minute or so, and the soundbar stops producing sound from TV.
To use the soundbar with the TV reliably I have to toggle HDMI-eARC Mode once again, and also never switch to the Receiver as Sound Output. This way I'm unable to make audio pass-through working though, it's grayed out. I could turn on pass-through by toggling Digital Output Audio Format from Auto to PCM, then selecting Receiver in Sound Output. But the Receiver disappears again as soon as I switch to pass-through.
Historically I used to deal with this by resetting both TV and JBL 9.1 many times both via menu and button press - sometimes the TV picks up JBL 9.1 as Atmos-enabled device correctly. But later it starts losing connection to the bar anyways - I assume there's some issue with eARC handshake, have no idea how to deal with it. Just tired of cycling resets hoping that it makes things work again.
I also contacted both Harman/Kardon and Samsung support regarding this, even set up a remote session for Samsung support - they have no idea what the cause of the issue is.
Would be very grateful for any help.
