Well, I dug around a bit. I did find a video of someone configuring a Douk U2 (not the pro) for Linux, but not through MoOde. Apparently, HIFI DSD is the right configuration. I was wrongly associating the name with DSD output. Assumed there should be a HIFI PCM configuration.
When I power on the Pi, the PCM light comes on, its more of a default light. During the Pi boot-up, it switches from PCM to DSD. When I play a FLAC file, it switches back to PCM, and stays there. No volume comes out even if set to 100%. I can swap in the X1 and everything works. I put the Douk back on the W10 laptop, and it works fine.
No reply from Douk, yet.
When I power on the Pi, the PCM light comes on, its more of a default light. During the Pi boot-up, it switches from PCM to DSD. When I play a FLAC file, it switches back to PCM, and stays there. No volume comes out even if set to 100%. I can swap in the X1 and everything works. I put the Douk back on the W10 laptop, and it works fine.
No reply from Douk, yet.