New answers tagged pulseaudio
You need to run xfce4-volumed with applied pulse audio patches. Please be aware that with the deprecation of gstreamer0.10 and its mixer interface in favor of gst1.0, xfce4-mixer and xfce4-volumed became deprecated. Use xfce4-pulseaudio-plugin and pavucontrol instead.
Not sure about PulseAudio, but this thing always was glitchy for me so I stick to just Alsa now. I googled a bit and you might need http://freedesktop.org/software/pulseaudio/pavucontrol/ to make it work. There is a known bug where amixer doesn't affect xfce4-mixer, and pavucontrol most likely patches it.
This was a problem on Debian Wheezy, when I upgraded to Jessie the issue went away.
I had this problem on a program that I was using, to fix it I downloaded a new sound driver. There are a lot of drivers, I use ASIO4ALL v2 I like it but it is for a program and the program itself launches it. it isn't default, so make sure you set it up like you want it. sorry if this doesn't help
The file /usr/share/pulseaudio/alsa-mixer/paths/analog-output.conf.common contains all the explanations and the basic settings on how pulseaudio will tinker with Alsa Mixer settings.
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