Different audio format from direct play vs casting?

Plex Players Streaming Devices
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Server Version#: Version 1.32.6.7468
Player Version#:

TLDR: I’m getting STEREO PCM audio format when playing content from Plex installed in the Chromecast with Google TV directly, but if I cast from my phone I get Dolby Digital Plus

Equipment

  • LG TV 70UH6350
    • Sound out configured:
      • Audio Out (HDMI/ARC)
      • Digital sound Out: Auto (the other option is PCM)
      • SIMPLILINK: ON
  • Chromecast with Google TV
    • Audio configured:
      • Auto detect audio output
      • When plugged in to the TV, it says that Dolby Digital Plus and Dolby Atmos with Dolby Digital Plus are Unsupported formats
      • When plugged in to Soundbar, it says all formats are supported
  • Soundbar Samsung Q900C

My tests

Playing a TRUEHD video via Plex:

  • Casting from my phone to:
    • Chromecast plugged in to TV: Dolby Digital
    • Chromecast plugged in to soundbar: Dolby Digital Plus
  • Playing directly from the Plex app:
    • Chromecast plugged in to TV: stereo pcm
    • Chromecast plugged in to soundbar: stereo pcm

When playing directly on the plex app I can see that it’s playing in “Play Original Quality”

Any idea what might be going on?

2

Do you have passthrough via HDMI enabled in the app?

3

Thank you for the quick reply.
I didn’t have it enabled. I enabled it now, killed the app and started it again and I still see Stereo Pcm as the format

Edit: OK, your comment was it. I unplugged the power of the chromecast to fully shut it off, turned it back on, and now Plex streams in Dolby Atmos, thank you!

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