PS4 Pro outputting PCM via LG CX shows Multichannel PCM 7.1 for Sonos Arc, but rear surrounds have no audio

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I created an account on this forum exclusively to comment on this thread about how disappointed I am that this multichannel LPCM issue hasn’t been fixed. I get absolutely nothing (no sound) when using lpcm on any setting other than stereo on my CX. Some sources can change their output to something like dolby, but some can’t, and for those that can’t, you’re stuck with stereo...its not a small deal if you invested enough in the ecosystem to get a 5.1 system.


Whether sonos or lg, I just wish someone would fix this. 


Fix coming when?