I cannot get Dolby Atmos on my Arc when watching Netflix ( it’s on my LG cx 2020 model year) I have all the necessary requirements and when I play through the tv speakers I also see the Atmos icon on the screen, this dissapears when I attach the Arc. I’ve tried enabling the eArc toggle in additional settings, makes no difference. The arc was set up using the v2 Sonos app . In fact all streamed content is broadcast in 2.0 when I check on the Sonos app.
Answered
sonos arc and lg cx (2020) no dolby Atmos
Best answer by Ken_Griffiths
What is the sound-out codec set to on the TV? If it’s the same as the LG C9 TV go to "settings/sound/additional settings/DTV Audio Setting” and toggle it to Dolby Digital Plus and then back to Auto and see if that fixes it.
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What is the sound-out codec set to on the TV? If it’s the same as the LG C9 TV go to "settings/sound/additional settings/DTV Audio Setting” and toggle it to Dolby Digital Plus and then back to Auto and see if that fixes it.
I would also just leave the HDMI-2 set to eARC (on) and ‘pass-through’ on the HDMI ports.
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