SUMMARY Just opening the apllet (left click) cretaes a glich while Ardour is playing using jack asa sound server. With pipewire-jack, it's worst. Change the volume with the mouse wheel, audio start stuttering/crackling, badly. https://gitlab.freedesktop.org/pipewire/pipewire/-/issues/3512 STEPS TO REPRODUCE 1. for me it's happens while Ardour is playing with a medium size session 2. 3. OBSERVED RESULT crackling/stuttering sound EXPECTED RESULT Good sound It does not happens with alsamixer It could be related to the notification sound that the applet try to play
If may help, it doesn't happen with the "old" Kmix
Does it happen if you set CANBERRA_DRIVER=null in /etc/environment and logout and back in?
(In reply to Harald Sitter from comment #2) > Does it happen if you set CANBERRA_DRIVER=null in /etc/environment and > logout and back in? export -p report declare -x CANBERRA_DRIVER="null", so I think I did it right (there's no /etc/environment on openSUSE by default). Still the same. Not sure if it means something but I still see "libcamberra" appearing in pw-top when I change the volume.
If there's still libcanberra in pw-top then you didn't set the environment variable correctly globally.
(In reply to Harald Sitter from comment #4) > If there's still libcanberra in pw-top then you didn't set the environment > variable correctly globally. IDK, added a file to /etc/profile.d with export CANBERRA_DRIVER=null and after a logout/in printenv report that var correctly but still present in pw-top :/ Anyway, I removed libcanberra-pulse.so and now the mouse wheel it's working fine ! There is still the small glich whit left click to show the applet menu. A good step ahead.
Right, so I think this simply needs resolving upstream https://bugs.kde.org/show_bug.cgi?id=490633 may play into this a bit, but the fact that just opening the applet already produces problems suggests we won't be able to do much about the root issue.