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chucksmith33
Trending Lyricist I
June 15, 2020

Arc with LG B7 - no Atmos

I just swapped out my playbase with an Arc.  It sounds great, but I am trying to get it to play Dolby Atmos content.  I have a 2017 LG OLED B7 TV that has an ARC output (not eARc).  I have found a few streaming sources with Dolby Atmos content, but it will only play through the TV speakers (when switches to internal speaker). Any help would be greatly appreciated.

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47 replies

LexGn
Lyricist III
June 16, 2020

Hi,

Have you managed to get the B7 to play sound via the HDMI or only via optical - I have a 55B7V which won’t output to the Sonos Arc via HDMI  - no joy as yet getting a fix from LG!

Cardwizard
Enthusiast I
June 16, 2020

No Atmos on my LG C7 either, my previous Onkyo receiver played Atmos just fine from my C7 :-(

david82
david82
Collaborator II
June 16, 2020

check your settings to make sure Sound>Sound Out>Audio Out (Optical/HDMI ARC) is selected and then the Digital Sound Out suboption is set to Auto. it’s probably a good thing to check to make sure HDMI-CEC (control and auto setup) is on in General>SIMPLINK (HDMI-CEC).

Cardwizard
Enthusiast I
June 16, 2020

Thanks, alle those settings are correct here 🤷🏼‍♂️

LexGn
Lyricist III
June 16, 2020

Same with mine... 

Response from LG is that TV should work but they don't know why it isn't and have passed to technicians but no further reply yet!

At least the optical works I guess in meantime but was looking forward to Atmos!

Cardwizard
Enthusiast I
June 16, 2020

Sound over HDMI ARC works to the Sonos Arc but nothing higher (Atmos) than DD+

david82
david82
Collaborator II
June 16, 2020

definitely looks like a bug in LG firmware - i hope they resolve it for you soon and glad they noted it SHOULD work.

    Cardwizard
    Enthusiast I
    June 16, 2020

    It does work with other audio but not with the Sonos Arc, zo I don’t think it’s an LG issue

    LexGn
    Lyricist III
    June 16, 2020

    Ah, I was working on assumption it was LG issue as my arc works with another TV but not with the LG... No sound at all via HDMI arc on LG only by the optical output…

    Unfortunately don't have a spare soundbar lying around that plugs via arc to check the TV...

    ivandolz
    Trending Lyricist I
    June 16, 2020

    My LG C7 works perfectly with the arc and plays Atmos on Netflix Native App and through AppleTV without any problems.

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