ALC255_FIXUP_XIAOMI_HEADSET_MIC,
        ALC274_FIXUP_HP_MIC,
        ALC274_FIXUP_HP_HEADSET_MIC,
+       ALC256_FIXUP_ASUS_HPE,
 };
 
 static const struct hda_fixup alc269_fixups[] = {
                .chained = true,
                .chain_id = ALC274_FIXUP_HP_MIC
        },
+       [ALC256_FIXUP_ASUS_HPE] = {
+               .type = HDA_FIXUP_VERBS,
+               .v.verbs = (const struct hda_verb[]) {
+                       /* Set EAPD high */
+                       { 0x20, AC_VERB_SET_COEF_INDEX, 0x0f },
+                       { 0x20, AC_VERB_SET_PROC_COEF, 0x7778 },
+                       { }
+               },
+               .chained = true,
+               .chain_id = ALC294_FIXUP_ASUS_HEADSET_MIC
+       },
 };
 
 static const struct snd_pci_quirk alc269_fixup_tbl[] = {
        SND_PCI_QUIRK(0x1043, 0x1bbd, "ASUS Z550MA", ALC255_FIXUP_ASUS_MIC_NO_PRESENCE),
        SND_PCI_QUIRK(0x1043, 0x1c23, "Asus X55U", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
        SND_PCI_QUIRK(0x1043, 0x1ccd, "ASUS X555UB", ALC256_FIXUP_ASUS_MIC),
+       SND_PCI_QUIRK(0x1043, 0x1d4e, "ASUS TM420", ALC256_FIXUP_ASUS_HPE),
        SND_PCI_QUIRK(0x1043, 0x1e11, "ASUS Zephyrus G15", ALC289_FIXUP_ASUS_GA502),
        SND_PCI_QUIRK(0x1043, 0x1f11, "ASUS Zephyrus G14", ALC289_FIXUP_ASUS_GA401),
        SND_PCI_QUIRK(0x1043, 0x1881, "ASUS Zephyrus S/M", ALC294_FIXUP_ASUS_GX502_PINS),