diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 896bc2cc9293db75e3c1d80ee4bf2d319bbcc81d..caf6fa5e6a70b02122bba83fe3b60c18861905c8 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -633,6 +633,9 @@ static void alc_inv_dmic_sync_adc(struct hda_codec *codec, int adc_idx)
 	parm = AC_AMP_SET_RIGHT |
 		(dir == HDA_OUTPUT ? AC_AMP_SET_OUTPUT : AC_AMP_SET_INPUT);
 
+	/* flush all cached amps at first */
+	snd_hda_codec_resume_amp(codec);
+
 	/* we care only right channel */
 	val = snd_hda_codec_amp_read(codec, nid, 1, dir, 0);
 	if (val & 0x80) /* if already muted, we don't need to touch */