First test, with a microphone conected to my PC rear panel: http://www.alsa-project.org/db/?f=3a82831970eb5b856a88e707c9760d4a17412fe1
seem node 0x0c is the rear Mic jack as "line Jack" is true control.20 { iface CARD name 'Rear Mic Jack' value false comment { access read type BOOLEAN count 1 } } control.21 { iface CARD name 'Front Mic Phantom Jack' value true comment { access read type BOOLEAN count 1 } } control.22 { iface CARD name 'Line Jack' value true comment { access read type BOOLEAN count 1 } } control.23 { -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1185497 Title: [PI945GCM, SigmaTel STAC9221 A2, Green Headphone Out, Front] No sound at all To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1185497/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs