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
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https://bugs.launchpad.net/bugs/1185497
Title:
[PI945GCM, SigmaTel STAC9221 A2, Green Headphone Out, Front] No sound
at all
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