try hda-jack-sense-test to verify the nodes of front panel jacks and rear panel jacks by plug and unplug the Mic jacks and line in jack
it is unlikely node 0x15 is the front Mic jack since pincap does not support DETECT Node 0x15 [Pin Complex] wcaps 0x400001: Stereo Control: name="Front Mic Phantom Jack", index=0, device=0 Pincap 0x00000020: IN Pin Default 0x9033012e: [Fixed] CD at Int N/A Conn = ATAPI, Color = Unknown DefAssociation = 0x2, Sequence = 0xe Misc = NO_PRESENCE Pin-ctls: 0x20: IN -- 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