On Tue, 2015-12-29 at 21:50 +0200, Tanu Kaskinen wrote: > Not all symptoms point to it, but one known source of volume resets is > that both your regular user and gdm run their own pulseaudio daemons, > and plugging in and unplugging headphones causes interference between > the two. If you kill the pulseaudio process that gdm created, do things > get better? Note that once you kill the process, gdm will respawn a new > daemon instance, but that's ok, because it won't be able to access the > mixer as long as you keep your login session active. Thanks for the reply, but I don't use gdm on my system. My machine is a Debian testing (stretch, at the moment) installation, with fluxbox as window manager and lightdm as graphical login manager. --Â Kind regards, Mark