if notebooke does not support docking station and support SPDIF
try hdajackretask to change pin default of 0x0c to 0x411111f0
or add a new fixup for vgn-ar31m to remove dock headphone
enum {
STAC_9872_VAIO,
STAC_9872_VGN_AR31M,
STAC_9872_MODELS
};
static const struct hda_pintbl stac9872_vgn_ar31m_configs[] = {
{ 0x0c, 0x411111f0 },
{}
};
static const struct hda_fixup stac9872_fixups[] = {
[STAC_9872_VAIO] = {
.type = HDA_FIXUP_PINS,
.v.pins = stac9872_vaio_pin_configs,
},
[STAC_9872_VGN_AR31M] = {
.type = HDA_FIXUP_PINS,
.v.pins = stac9872_vaio_vgn_ar31m_configs,
},
};
static const struct snd_pci_quirk stac9872_fixup_tbl[] = {
SND_PCI_QUIRK(0x104d, 0x81fd, "Sony VGN AR31M", STAC_9872_VGN_AR31M),
SND_PCI_QUIRK_MASK(0x104d, 0xfff0, 0x81e0,
"Sony VAIO F/S", STAC_9872_VAIO),
{} /* terminator */
};
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https://bugs.launchpad.net/bugs/1250773
Title:
[VGN-AR31M, SigmaTel CXD9872AKD, Black Headphone Out, Left] No sound
at all
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