Index: share/man/man4/snd_hda.4
===================================================================
--- share/man/man4/snd_hda.4
+++ share/man/man4/snd_hda.4
@@ -227,8 +227,8 @@
 particular association.
 Sequence numbers can be specified as numeric values from 0 to 15.
 .Pp
-The sequence number 15 has a special meaning for output associations.
-Output pins with this number and device type
+The sequence numbers 14 and 15 has a special meaning for output associations.
+Output pins with these numbers and device type
 .Dq Ar Headphones
 will duplicate (with automatic mute if jack detection is supported) the
 first pin in that association.
Index: sys/dev/sound/pci/hda/hdaa.c
===================================================================
--- sys/dev/sound/pci/hda/hdaa.c
+++ sys/dev/sound/pci/hda/hdaa.c
@@ -419,7 +419,7 @@
 		}
 	}
 	/* (Un)Mute other pins. */
-	for (j = 0; j < 15; j++) {
+	for (j = 0; j < 14; j++) {
 		if (as->pins[j] <= 0)
 			continue;
 		ctl = hdaa_audio_ctl_amp_get(devinfo,
@@ -561,7 +561,8 @@
 	);
 
 	as = &devinfo->as[w->bindas];
-	if (as->hpredir >= 0 && as->pins[15] == w->nid)
+	if (as->hpredir >= 0 &&
+	    (as->pins[15] == w->nid || as->pins[14] == w->nid))
 		hdaa_hpredir_handler(w);
 	if (as->dir == HDAA_CTL_IN && old != 2)
 		hdaa_autorecsrc_handler(as, w);
@@ -762,7 +763,8 @@
 			    HDA_CMD_SET_UNSOLICITED_RESPONSE_ENABLE | w->unsol));
 		}
 		as = &devinfo->as[w->bindas];
-		if (as->hpredir >= 0 && as->pins[15] == w->nid) {
+		if (as->hpredir >= 0 &&
+		    (as->pins[15] == w->nid || as->pins[14] == w->nid)) {
 			if (HDA_PARAM_PIN_CAP_PRESENCE_DETECT_CAP(w->wclass.pin.cap) == 0 ||
 			    (HDA_CONFIG_DEFAULTCONF_MISC(w->wclass.pin.config) & 1) != 0) {
 				device_printf(devinfo->dev,
@@ -3268,9 +3270,12 @@
 			    HDA_CONFIG_DEFAULTCONF_LOCATION(w->wclass.pin.config)) {
 				as[cnt].location = -2;
 			}
-			/* Headphones with seq=15 may mean redirection. */
+			/*
+			 * Headphones with seq == 15 (or 14) may mean
+			 * redirection.
+			 */
 			if (type == HDA_CONFIG_DEFAULTCONF_DEVICE_HP_OUT &&
-			    seq == 15)
+			    (seq == 15 || seq == 14))
 				hpredir = 1;
 			as[cnt].pins[seq] = w->nid;
 			as[cnt].pincnt++;
@@ -3562,7 +3567,8 @@
 	if (i == 16)
 		return (1);
 
-	hpredir = (i == 15 && ases[as].fakeredir == 0)?ases[as].hpredir:-1;
+	hpredir = ((i == 15 || i == 14) &&
+	    ases[as].fakeredir == 0) ? ases[as].hpredir : -1;
 	min = 0;
 	do {
 		HDA_BOOTHVERBOSE(
@@ -5322,7 +5328,7 @@
 		ch->io[ret++] = as[ch->as].dacs[ch->asindex][i];
 		ch->stripecap &= w->wclass.conv.stripecap;
 		/* Do not count redirection pin/dac channels. */
-		if (i == 15 && as[ch->as].hpredir >= 0)
+		if ((i == 15 || i == 14) && as[ch->as].hpredir >= 0)
 			continue;
 		channels += HDA_PARAM_AUDIO_WIDGET_CAP_CC(w->param.widget_cap) + 1;
 		if (HDA_PARAM_AUDIO_WIDGET_CAP_CC(w->param.widget_cap) != 1)