I notice fuser errored out; here is what it produces for me if I run it now:
% fuser -v /dev/snd/by-path /dev/snd/hwC1D0 /dev/snd/pcmC1D0c /dev/snd/pcmC1D0p /dev/snd/controlC1 /dev/snd/hwC0D0 /dev/snd/pcmC0D8p /dev/snd/pcmC0D7p /dev/snd/pcmC0D3p /dev/snd/controlC0 /dev/snd/seq /dev/snd/timer USER PID ACCESS COMMAND /dev/snd/controlC1: daniel 5155 F.... pulseaudio daniel 6097 F.... alsamixer /dev/snd/controlC0: daniel 5155 F.... pulseaudio -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1508826 Title: [20ANCTO1WW, Realtek ALC3232, Black Headphone Out, Left] No sound at all when headset plugged in To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1508826/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs