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No sound from Arc Ultra via eARC on Sony Bravia 8 II

  • May 25, 2026
  • 3 replies
  • 34 views
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Im losing my mind over this issue. Its been several hours per day for four days including with Sonos support and no luck. I have a new Arc Ultra connected to a new Sony Bravia 8 II television via the TV eARC port using the HDMI cable included with the Arc Ultra. I have read for hours and tried everythign I read to get sound to come out of the arc ultra. Ive tried many different Sonois app and TV settings and different combos and many, many reboots of both products. I do not have any other HDMi or other port being used on the TV.  

Sonos support say I need an eARC to HDMI adapter?? What is this? The support tech seemed to get annoyed when I was asking anythign about the adapter. All my research shows the tv and soundbar are eARC as is the HDMI cable included with the Arc Ultra. I dont see any adapters online, only extractors which seem to only be used if one of the products is not eARC. 

Anyone using the arc ultra with a Sony Bravia 8 II?

Or, anyone who understands why I would need an extractor if both products are eARC compatable? 

Please help!! Thanks. 

3 replies

MoPac
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  • MoPac
  • Headliner III
  • May 25, 2026

Did you do the TV Setup?

 

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  • Nikopuppy87
  • Author
  • Contributor I
  • May 25, 2026

Thanks for the reply. I appreciate it.

I tried, many, many times to do the TV Setup in the sonos app. Every time is says the tv is not detectable. Ive then gone through every combo of unplugging the tv and arc ultra and HDMI cable and then putting them back in all different orders and then repeated a few times and it is the same result, tv not detectable.  Everything I read online talks about something like CEC not shaking hands (between the systems) and rebooting, etc. but nothing has worked.

However, when I check the tv settings, the TV shows the arc ultra as being detected and enabled as a Bravia Sync device.

I have tried a lot of combos of different settings on the tv and the sonos app that are shared on eith Sony’s or Sonos official tech support webpages. I also shared my cell phone screen with a sonos tech and had them ensure sure my tv and sonos app settings were correct but, there are a lot of different settings so Im at a loss. Im hoping it is some setting. 

 

MoPac
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  • MoPac
  • Headliner III
  • May 25, 2026

So when you turn on the Sony TV does the sound come out of the TV speakers?  Is eARC Mode set to Auto in Display & Sound > eARC Mode?

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