Finally there was some momentum to crack audio passtrough support on mainline kernel. Thanks to the RPi4 effort, I gained better understanding what needs to be done. I believe that first variant is ready to be tested.
DTS, Dolby, Dolby+, DTS-HD MA, Atmos
What doesn't work:
- If screen resolution is set to other than 1080p @ 60 Hz audio dropouts may happen.
Before you begin:
- make sure you have selected digital HDMI output in audio settings
- enable audio passthrough and specific codecs in audio settings
(other updates can be added on request except A20)
Please share your experience, especially if it doesn't work.