2 files changed, 6 insertions, 0 deletions

diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index f6a9a5dd9b74..df927be176af 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -2708,6 +2708,10 @@ int snd_hda_parse_pin_def_config(struct hda_codec *codec,
                 case AC_JACK_LINE_OUT:
                         seq = get_defcfg_sequence(def_conf);
                         assoc = get_defcfg_association(def_conf);
+
+                        if (!(wid_caps & AC_WCAP_STEREO))
+                                if (!cfg->mono_out_pin)
+                                        cfg->mono_out_pin = nid;
                         if (!assoc)
                                 continue;
                         if (!assoc_line_out)
@@ -2856,6 +2860,7 @@ int snd_hda_parse_pin_def_config(struct hda_codec *codec,
                    cfg->hp_outs, cfg->hp_pins[0],
                    cfg->hp_pins[1], cfg->hp_pins[2],
                    cfg->hp_pins[3], cfg->hp_pins[4]);
+        snd_printd("   mono: mono_out=0x%x\n", cfg->mono_out_pin);
         snd_printd("   inputs: mic=0x%x, fmic=0x%x, line=0x%x, fline=0x%x,"
                    " cd=0x%x, aux=0x%x\n",
                    cfg->input_pins[AUTO_PIN_MIC],
diff --git a/sound/pci/hda/hda_local.h b/sound/pci/hda/hda_local.h
index 448c4ce816c3..8a96047d3c79 100644
--- a/sound/pci/hda/hda_local.h
+++ b/sound/pci/hda/hda_local.h
@@ -332,6 +332,7 @@ struct auto_pin_cfg {
         hda_nid_t input_pins[AUTO_PIN_LAST];
         hda_nid_t dig_out_pin;
         hda_nid_t dig_in_pin;
+        hda_nid_t mono_out_pin;
 };
 
 #define get_defcfg_connect(cfg) \