I, too am affected by this issue, or at least an issue which quacks like this one.
I am using a samsung 7 series (700Z5A-S01), with a 3.2 kernel. For me, slightly different alsamixer values are reported (see attached file). Most notably, it reports my headphone as a sliderless control. For me too, headphone volume is controlled with the 'speaker' slider. My workaround required a little bit more magic: in analog-output-headphones [Element Speaker] ; link to muting switch = mute ; set volume to zero, so only the master slider controls playback volume. This gives better linearity. volume = zero ** Attachment added: "amixer.values" https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/921397/+attachment/2958786/+files/amixer.values -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/921397 Title: Speaker audio channel goes mute after plugging in the headphone To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/921397/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs