if hardware cannot distinguish headset and headphone does this mean that the function if the Jack is determined by capture source ?
internal Mic = headphone headset Mic = headset headphone Mic = mic control.10 { iface MIXER name 'Capture Source' value 'Internal Mic' comment { access 'read write' type ENUMERATED count 1 item.0 'Headphone Mic' item.1 'Headset Mic' item.2 'Internal Mic' } } if you only use headset and want automic when you plugged in you need to giveup the support of Mic jack and headphone by a new hint which change the logic https://bugs.freedesktop.org/show_bug.cgi?id=81580 ** Bug watch added: freedesktop.org Bugzilla #81580 https://bugs.freedesktop.org/show_bug.cgi?id=81580 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1252733 Title: [XPS 12-9Q33, Realtek ALC668, Black Headphone Out, Left] Background noise or low volume To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1252733/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs