For the past couple of months I've been trying to get passthrough bitsream audio working with my NUC 8i7BEH coffee lake device and LibreElec. I upgraded to the NUC 8 to get HDMI 2.0 support so I could run 4K @ 60 fps. My AVR is a Yamaha RX-A3020 which has an HDMI 1.4a interface which limits it to 4K @ 30 fps. If I plug the NUC into the Yamaha receiver passthrough bitstream audio works fine for both DTS-MA and True-HD.
In order to take advantage of the NUC's HDMI 2.0 output I bought an HDMI splitter which will send HDMI 2.0 video to my TV and HDMI 1.4 video / audio to my Yamaha receiver. This configuration works perfect with my Vero 4k+ running OSMC with Kodi 18.2 on it. I get 4K @ 60 fps with passthroigh bitstream audio. If I use the exact configuration with my NUC and LibreElec everything works perfect except passthrough bitstream audio for DTS-MA and True-HD.
I've been trying everything I can to figure out the problem. Bitstream works when plugged into the receiver and the splitter configuration works fine when plugged into the Vero 4K+ but the splitter plugged into the NUC combination doesn't provide bitstream audio. I've attached a set of logs with the NUC plugged into the splitter and me playing the first few seconds of a video with DTS-MA sound. I am hoping someone can provide some assistance. Thanks in advance.