1 files changed, 16 insertions, 2 deletions

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index bdea95aee448..4d3a6f05c703 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -847,9 +847,13 @@ static void alc_set_input_pin(struct hda_codec *codec, hda_nid_t nid,
 
         if (auto_pin_type <= AUTO_PIN_FRONT_MIC) {
                 unsigned int pincap;
+                unsigned int oldval;
+                oldval = snd_hda_codec_read(codec, nid, 0,
+                                            AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
                 pincap = snd_hda_query_pin_caps(codec, nid);
                 pincap = (pincap & AC_PINCAP_VREF) >> AC_PINCAP_VREF_SHIFT;
-                if (pincap & AC_PINCAP_VREF_80)
+                /* if the default pin setup is vref50, we give it priority */
+                if ((pincap & AC_PINCAP_VREF_80) && oldval != PIN_VREF50)
                         val = PIN_VREF80;
                 else if (pincap & AC_PINCAP_VREF_50)
                         val = PIN_VREF50;
@@ -10406,7 +10410,8 @@ static struct alc_config_preset alc882_presets[] = {
  * Pin config fixes
  */
 enum {
-        PINFIX_ABIT_AW9D_MAX
+        PINFIX_ABIT_AW9D_MAX,
+        PINFIX_PB_M5210,
 };
 
 static struct alc_pincfg alc882_abit_aw9d_pinfix[] = {
@@ -10416,13 +10421,22 @@ static struct alc_pincfg alc882_abit_aw9d_pinfix[] = {
         { }
 };
 
+static const struct hda_verb pb_m5210_verbs[] = {
+        { 0x19, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_VREF50 },
+        {}
+};
+
 static const struct alc_fixup alc882_fixups[] = {
         [PINFIX_ABIT_AW9D_MAX] = {
                 .pins = alc882_abit_aw9d_pinfix
         },
+        [PINFIX_PB_M5210] = {
+                .verbs = pb_m5210_verbs
+        },
 };
 
 static struct snd_pci_quirk alc882_fixup_tbl[] = {
+        SND_PCI_QUIRK(0x1025, 0x0155, "Packard-Bell M5120", PINFIX_PB_M5210),
         SND_PCI_QUIRK(0x147b, 0x107a, "Abit AW9D-MAX", PINFIX_ABIT_AW9D_MAX),
         {}
 };