So, I'm working on PrBoom again and I noticed a strange behaviour:
Sometimes when I start the program, there is sound. Sometimes, when I use the volume program, the sound become audible, even if I press the plus sign only once, so that the volume is going down or up one point. The direction doesn't matter.
I'm running a T480 with the newest ArcaNoae Uniaud (I also tried Paul's newer version, no change there). SDL2 is locally build copy of the most recent repo.
The question is, whether somebody knows this phenomenom and point me to some solution.