No Subwoofer Coming from Kodi

Sorry guys if this is the wrong place for this, my first post.
On my Dell laptop, e7240, I have the hdmi audio setup for 5.1, subwoofer tests ok in Windows

Running Vlc, I get subwoofer output, but with kodi nothing.

I have a Denon Avr900 receiver with hdmi connection. Have tried multiple sound setups on the Denon, but the same: Vlc plays the subwoofer, but I don’t get anything from kodi. Disc is a ISO rip of my Game of Thrones season 2 disc 1. Only sound choices in kodi is 5.1 so I don’t know what could be going on.