On my Venus II, I did not get any output on 1/1/1 with Pi2AES HDMI out until I used the jumper across W1 pins 1-2. Once I did that, I got sound. I just used a computer jumper pin I had laying around in my spare parts baggie. No other pins were messed with: Now, frankly, I'm hoping we get some sort of i2s streamer device that supports DSD1024 (ok, even just 256 would be nice) and higher rate PCM than Pi2AES does at this point. It's for that reason that I'm still using USB out from a basic Pi4 functioning as an HQPlayer NAA as I find I like it better, still, than internally upsampled i2S.