I tested now - as already reported in another thread it doesn’t depend on OTA or fresh install and:
It also doesn’t depend on the model of PI (2,3,3+) nor on the model of (i2s) DAC.
The issue is easily reproducable - tested with the following I2S DACs:
TerraBerry DAC 2
Allo Boss (old versions + 1 newest version including Allo Isolator)
Allo Piano 2.1 with KALI Reclocker (4 pcs)
MamboBerryDAC+ with KALI Reclocker
OSA DACBerry Pro (will get the “+ pro” soon)
HifiBerry + Pro (5 pcs) ; HifiBerry ADC ; HifiBerry Digi Pro +
Nanomesher DAC 1 pro (2 pcs)
IQaudio + (have plenty of these for standard tests)
IQaudio + pro
PIFI DAC v2
Generic ES9023 DAC
AOIDE DAC ES9018 (unsupported with self hacked driver and DAC model installation ) (5 pcs)
Audiophonics ES9038Q2M micro USB edition (unsupported with self hacked DAC model integration)
some other unsupported “non hat” i2s DACs from China (not happy with these for now - maybe i’m doing something wrong)
All these configurations didn’t show this issue to at least v2.657 and i id not notice these issues up to 2.668.
Beginning with v2.671 (same kernel version 4.19.73) things went wierd on some configs… and now v2.692 (kernel v4.19.83) on all of them. It even “seems” that upgraded installs sometimes worked more reliable than fresh v2.692 installations - but not sure…
USB DACs do not seem to be affected at all. I only own 3 different models to test with, but others here on the forum also reported there is no issue with USB DACs.
I’m sure there soon will be a fix from Volumio team early january after the public holidays.
So long - let’s use older versions or temporarily switch to USB…
Merry christmas and a happy new year.