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Question

G5 + Nvidia Shield + Arc Ultra

  • January 14, 2026
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Hi all,

I have a NVIDIA Shield Pro → LG G5 → Sonos Arc Ultra (eARC).

I am trying movies coded with TrueHD Atmos 7.1 but on Sonos its showing Dolby Multichannel 2.0. 

How do I get the TV and Shield to give me the correct/proper sound? 
I thought the Arc Ultra handled Atmos right, so why wouldnt it output this? 

Any help or best settings would be so welcome… Please help.

FYI, I also tried with an Apple TV 4k, so if anyone has ideas for this that would be great too.