Plex HTPC won't play audio to bluetooth on Mac?

Player Version#: Plex HTPC 1.60.1
System: Mac M1, Sonoma

I currently cannot play audio from any content via Plex HTPC to my Bluetooth device - this is a problem with a new-ish somewhat expensive bluetooth receiver, and was also a problem with a slightly older device I used to have. The strange thing is, I can hear feedback sounds from PlexHTPC (e.g. clicks as I type and make menu selections), but when I play any video I only hear silence.

  • I’ve tried every possible combination of audio settings in Plex HTPC, both settings for the content as well as global playback settings - no luck.
  • I’ve tried making an aggregate audio device for my bluetooth player - no luck, same behavior, no sound with videos
  • I’ve tried videos with stereo as well as various surround formats - no luck (e.g. it’s not just a problem with specific audio encodings).
  • I can play the same movies in the regular Plex app and other video players to the bluetooth device with no problems.
  • Bluetooth playback USED to work. I’m not totally sure what broke it, as I use HTPC only occationally - the things that have changed:
    • I’ve updated to MacOS Sonoma (this could have broken something?)
    • I’ve applied updates to HTPC (this could be an HTPC regression?)
  • Mysteriously, I got audio playing recently - ONCE - and thought the problem had miraculously solved itself. But the next time I watched something, it was back to no audio again. This could indicate that there’s some combination of … the audio encoding for the file, plus Plex audio settings, plus … ??? … that is at fault.

I’m confused how to triage this - I don’t have this problem with any other application on my system, and my bluetooth device is in general very reliable and problem-free. It’s a bit maddening because my projector tends to have audio sync problems that I can only fix with HTPC. Anyone else dealt with similar issues on mac? Any clues here?

Try this:
open Plex HTPC only after switching on/plugging in/activating your headphones.

Go into the settings of Plex HTPC, section “Audio”
select your headphones under Device, instead of leaving it on Auto.
Then set the Audio Device Kind to “Basic” and channel number to “2.0”.


If that doesn’t make a change, close Plex HTPC. Then find its plex.ini file and delete it.
(it should be in here: ~/Library/Application Support/Plex HTPC/)
Now start Plex HTPC again. You will need to connect it to your plex account again and make all the basic settings again.

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