you need to perform early patching to change the pin default of the four
output jacks at rear panel from speaker to line out
Node 0x0c [Pin Complex] wcaps 0x400183: Stereo Amp-In
Control: name="Speaker Front Jack", index=0, device=0
Amp-In caps: N/A
Amp-In vals: [0x00 0x00]
Pincap 0x00001737: IN OUT Detect Trigger ImpSense
Vref caps: HIZ 50 GRD 80
Pin Default 0x01114020: [Jack] Speaker at Ext Rear
Conn = 1/8, Color = Green
DefAssociation = 0x2, Sequence = 0x0
Pin-ctls: 0x00: VREF_HIZ
Unsolicited: tag=05, enabled=1
Connection: 6
0x15* 0x16 0x17 0x18 0x19 0x1e
Node 0x0f [Pin Complex] wcaps 0x400183: Stereo Amp-In
Control: name="Speaker Surround Jack", index=0, device=0
Amp-In caps: N/A
Amp-In vals: [0x00 0x00]
Pincap 0x00000037: IN OUT Detect Trigger ImpSense
Pin Default 0x01111022: [Jack] Speaker at Ext Rear
Conn = 1/8, Color = Black
DefAssociation = 0x2, Sequence = 0x2
Pin-ctls: 0x00:
Unsolicited: tag=06, enabled=1
Connection: 6
0x15 0x16* 0x17 0x18 0x19 0x1e
Node 0x10 [Pin Complex] wcaps 0x400183: Stereo Amp-In
Control: name="Speaker CLFE Jack", index=0, device=0
Amp-In caps: N/A
Amp-In vals: [0x00 0x00]
Pincap 0x00000037: IN OUT Detect Trigger ImpSense
Pin Default 0x01116021: [Jack] Speaker at Ext Rear
Conn = 1/8, Color = Orange
DefAssociation = 0x2, Sequence = 0x1
Pin-ctls: 0x00:
Unsolicited: tag=07, enabled=1
Connection: 6
0x15 0x16 0x17* 0x18 0x19 0x1e
Node 0x11 [Pin Complex] wcaps 0x400183: Stereo Amp-In
Control: name="Speaker Side Jack", index=0, device=0
Amp-In caps: N/A
Amp-In vals: [0x00 0x00]
Pincap 0x00000037: IN OUT Detect Trigger ImpSense
Pin Default 0x01112024: [Jack] Speaker at Ext Rear
Conn = 1/8, Color = Grey
DefAssociation = 0x2, Sequence = 0x4
Pin-ctls: 0x00:
Unsolicited: tag=08, enabled=1
Connection: 6
0x15 0x16 0x17 0x18* 0x19 0x1e
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https://bugs.launchpad.net/bugs/1041322
Title:
Very low sound on HP p7-1227c
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