NANO90 & Apple TV 4K 2021 - Can't play Atmos


Novice Member
Any one here owns this TV and an Apple TV 4K 2021 on tvOS 15, using the internal speakers and can confirm he is getting Dolby Atmos?
Playing Netflix content will only pop the Dolby Vision popup.
Atmos is turned on in the TV settings.
Moving the Apple TV & HDMI cable to another room and connecting it to a LG CX plays Atmos just fine which eliminates Apple or cable issue.

webOS apps play Atmos without a problem.

Model: 75NANO90VNA
Firmware Version: 03.23.35

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Distinguished Member
Double check TV settings
eARC = disabled
HDMI audio input = bitstream
Digital sound output = auto

TV specs on LG site says it supports E-AC3 which is DD+ Atmos, could be a firmware bug or maybe trying a factory reset of the ATV might help.
Upvote 0


Novice Member
Thanks. All settings are as you mentioned. Added an HDMI info screen to the first post.
I've tried resetting the tv and the atv with no luck.

I hope it's a firmware bug but couldn't find any recent posts about this.
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