Comment 32 for bug 1912052

I just had the same issue but on Acer Predator PH315-54

alsa-info.sh output: http://alsa-project.org/db/?f=66787dea0436de3059aac928371c61646ebad51b

Jaroslav, I sent a patch for you and alsa-devel, but I think it did not arrive as I am not a member of the list. I just applied the same quirk and recompiled, resulting in a working headset microphone.
Thank you a lot for all the information/guidance in this issue.

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 6fab7c8fc19a..5b628fd3351d 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -9202,6 +9202,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
  SND_PCI_QUIRK(0x1025, 0x142b, "Acer Swift SF314-42", ALC255_FIXUP_ACER_MIC_NO_PRESENCE),
  SND_PCI_QUIRK(0x1025, 0x1430, "Acer TravelMate B311R-31", ALC256_FIXUP_ACER_MIC_NO_PRESENCE),
  SND_PCI_QUIRK(0x1025, 0x1466, "Acer Aspire A515-56", ALC255_FIXUP_ACER_HEADPHONE_AND_MIC),
+ SND_PCI_QUIRK(0x1025, 0x1534, "Acer Predator PH315-54", ALC255_FIXUP_ACER_MIC_NO_PRESENCE),
  SND_PCI_QUIRK(0x1028, 0x0470, "Dell M101z", ALC269_FIXUP_DELL_M101Z),
  SND_PCI_QUIRK(0x1028, 0x053c, "Dell Latitude E5430", ALC292_FIXUP_DELL_E7X),
  SND_PCI_QUIRK(0x1028, 0x054b, "Dell XPS one 2710", ALC275_FIXUP_DELL_XPS),