[spencerjford]

I've been using Kodi DSPlayer for a couple of years now, and had my HTPC running pretty well.  I use my HTPC exclusively to play Bluray and UHD MKV files ripped from my movie disc collection.

Recently, my NVIDIA driver got updated accidentally (I've avoided updating most drivers once I got my system working the way I wanted) which started causing some problems.  So I downloaded my previous NVIDIA driver and rolled back to that version (390.77).  Everything is working again, except I can't get my system to play any lossless audio (Dolby TrueHD, DTS-HD MA, or Dolby Atmos).  Now, when I play a MKV movie that has Dolby TrueHD, DTS-HD MA, or Dolby Atmos, I get no sound from the movie.  If I play a MKV movie with DD or DTS, the sound plays fine.  I have WASAPI selected for both direct and passthrough, and all audio formats supported by my A/V receiver (Yamaha RX-A2070) are selected. 

Any idea what might have gotten broken during the Driver rollback, or how I can get lossless audio to play again?  Thanks for the help!

sometimes you need to reselect the device in the dsplayer section of players, scroll down and make sure your device is still selected.  sometimes when it upgrades video it changes something about the audio device the the original device is now not listed in dsplayer