If it's plugged-in it should sound

Over 30 years of computing and it's in Leap-15.3 that for a first time I see something done the right way: with a guitar fx-board output plugged into my soundcard's 1/4" Line-In jack I can actually HEAR it *even before logging-in* (pulse is used). Interestingly enough this feature is not there in bleeding-edge Tumbleweed :-))) QUESTION: Is it detactable if some instrument is actually plugged into the sound card? If it is then this is the way to go, I mean if I plug something in it's because I want to hear it and it should be default, no? Would be nice to see this in TW as well all the same, even if it's an unintended bug! -- Artificial Stupidity will never be competitive.