This patch solves bug 200501 'Only 2 of 4 speakers playing sound.' https://bugzilla.kernel.org/show_bug.cgi?id=200501 On Wed, 2018-10-31 at 15:20 -0400, Ayman Bagabas wrote: > This patch enables the front speakers on Huawei Matebook X Pro > laptops. > These laptops come with Dolby Atmos sound system and these pins > configuration enables the front speakers. > > Signed-off-by: Ayman Bagabas <ayman.bagabas@xxxxxxxxx> > --- > sound/pci/hda/patch_realtek.c | 18 ++++++++++++++++++ > 1 file changed, 18 insertions(+) > > diff --git a/sound/pci/hda/patch_realtek.c > b/sound/pci/hda/patch_realtek.c > index 3ac7ba9b342d..4f7a39c7883c 100644 > --- a/sound/pci/hda/patch_realtek.c > +++ b/sound/pci/hda/patch_realtek.c > @@ -5493,6 +5493,7 @@ enum { > ALC298_FIXUP_TPT470_DOCK, > ALC255_FIXUP_DUMMY_LINEOUT_VERB, > ALC255_FIXUP_DELL_HEADSET_MIC, > + ALC256_FIXUP_HUAWEI_MBXP_PINS, > ALC295_FIXUP_HP_X360, > ALC221_FIXUP_HP_HEADSET_MIC, > }; > @@ -6347,6 +6348,22 @@ static const struct hda_fixup alc269_fixups[] > = { > .chained = true, > .chain_id = ALC269_FIXUP_HEADSET_MIC > }, > + [ALC256_FIXUP_HUAWEI_MBXP_PINS] = { > + .type = HDA_FIXUP_PINS, > + .v.pins = (const struct hda_pintbl[]) { > + {0x12, 0x90a60130}, > + {0x13, 0x40000000}, > + {0x14, 0x90170110}, > + {0x18, 0x411111f0}, > + {0x19, 0x04a11040}, > + {0x1a, 0x411111f0}, > + {0x1b, 0x90170112}, > + {0x1d, 0x40759a05}, > + {0x1e, 0x411111f0}, > + {0x21, 0x04211020}, > + { }, > + }, > + }, > [ALC295_FIXUP_HP_X360] = { > .type = HDA_FIXUP_FUNC, > .v.func = alc295_fixup_hp_top_speakers, > @@ -6592,6 +6609,7 @@ static const struct snd_pci_quirk > alc269_fixup_tbl[] = { > SND_PCI_QUIRK(0x17aa, 0x5109, "Thinkpad", > ALC269_FIXUP_LIMIT_INT_MIC_BOOST), > SND_PCI_QUIRK(0x17aa, 0x511e, "Thinkpad", > ALC298_FIXUP_TPT470_DOCK), > SND_PCI_QUIRK(0x17aa, 0x511f, "Thinkpad", > ALC298_FIXUP_TPT470_DOCK), > + SND_PCI_QUIRK(0x19e5, 0x3204, "Huawei MBXP", > ALC256_FIXUP_HUAWEI_MBXP_PINS), > SND_PCI_QUIRK(0x17aa, 0x3bf8, "Quanta FL1", > ALC269_FIXUP_PCM_44K), > SND_PCI_QUIRK(0x17aa, 0x9e54, "LENOVO NB", > ALC269_FIXUP_LENOVO_EAPD), > SND_PCI_QUIRK(0x1b7d, 0xa831, "Ordissimo EVE2 ", > ALC269VB_FIXUP_ORDISSIMO_EVE2), /* Also known as Malata PC-B1303 */ _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel