No Audio Passthrough in Windows 10 - Latest Plex Player

[FordGuy61]

Switch Plex Media Player to TV Mode. Click on your user avatar, choose Settings → Audio. Change device type to HDMI and you should see passthrough options.

See this thread:

No surround sound

I am running plex server on a Synology NAS (DS218+), and my main client is running PMP on an Intel NUC7 (Windwos-10) with HDMI connection to a Sony TV. All works fine, but I do not seem to get any surround sound from the TV (which is output to a Sony amp with 5 channel output). Other things playing on the TV (e.g. Amazon FireStick) give fine 5+1 sound. One example video - properties show that it is 5.1 Dolby audio, but playing it gives front-speakers only. The NUC has a fiber-optic sound outp…