I use a Sony Bravia 9 with Sonos ARC, 2 Era 100 and a SUB - so far so good. Problem starts, whenever I connect any other device to Bravia’s HDMI ports, Playstation, Apple TV, TV-Box, Marantz Amp etc.). Only if all other HDMI ports are unplugged, the TV recognizes the ARC, otherwise Bravia switches to internal speakers and will not allow to use ARC again, until everything else is plugged out. If so it automatically switches back to ARC
Any ideas?
I can't help but I do recall seeing similar topics here that you might try.
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This will be to do with the operation of HDMI-CEC, which Sony calls 'Bravia Sync".
You probably need to turn CEC off on the other devices. If you can't do that in the Bravia settings you may need some 'HDMI-CEC-less adapters".
I'm a bit hazy on the details but it might point you in the right direction.
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