iFi iDAC2 and DietPi

[dabassgoesboomboom]

Similar problems to here with the small pops with RPi USB output:

USB fix for small pops and clicks during playback? [Schiit Bimby]

I have been using DietPi for several months running RoonBridge into a HifiBerry DAC+ without any issues. I recently upgraded to a Schiit Biforst MB, and have been having some problems using the RPi2 as a USB PCM source. Somewhat frequently, about once per ~2 minutes, there is a small pop/click in the audio playback akin to an LP pop or a CD skip. I went through a few iterations of USB cable, hard USB adapter, and AQ Jitterbug, but none solved the problem. I also increased the hardware buffer…