At Sat, 28 Dec 2013 23:56:52 +0100, Christopher K. wrote:

Hi,

the internal mic in my notebook does not work (has never worked with pulse) with the default driver settings. Setting Node 0x23 (internal mic boost volume) from

Amp-In vals: [0x03 0x03] to Amp-In vals: [0x02 0x00]

makes it work in Skype and shows peaks in pulseaudio. I have no idea what these numbers represent, but apparently it doesn't work if they're the same. Is there any way to figure out what this does and which settings are correct?

Info: http://www.alsa-project.org/db/?f=be2d83a353d47586ac2197fdb56d2085eec61b3f

Any help would be greatly appreciated.

Could you try the patch below?

Then you'll have a new mixer control "Inverted Mic", and mute this should fix the stereo digital mic problem.

Takashi

--- diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c index 6df4c35b48c5..2fdbc7a0f98b 100644 --- a/sound/pci/hda/patch_conexant.c +++ b/sound/pci/hda/patch_conexant.c @@ -3236,7 +3236,7 @@ enum { CXT_FIXUP_INC_MIC_BOOST, CXT_FIXUP_HEADPHONE_MIC_PIN, CXT_FIXUP_HEADPHONE_MIC, - CXT_FIXUP_GPIO1, + CXT_FIXUP_ASPIRE_3830, CXT_FIXUP_THINKPAD_ACPI, };

@@ -3481,7 +3481,7 @@ static const struct hda_fixup cxt_fixups[] = { .type = HDA_FIXUP_FUNC, .v.func = cxt_fixup_headphone_mic, }, - [CXT_FIXUP_GPIO1] = { + [CXT_FIXUP_ASPIRE_3830] = { .type = HDA_FIXUP_VERBS, .v.verbs = (const struct hda_verb[]) { { 0x01, AC_VERB_SET_GPIO_MASK, 0x01 }, @@ -3489,6 +3489,8 @@ static const struct hda_fixup cxt_fixups[] = { { 0x01, AC_VERB_SET_GPIO_DATA, 0x01 }, { } }, + .chained = true, + .chain_id = CXT_FIXUP_STEREO_DMIC, }, [CXT_FIXUP_THINKPAD_ACPI] = { .type = HDA_FIXUP_FUNC, @@ -3503,7 +3505,7 @@ static const struct snd_pci_quirk cxt5051_fixups[] = {

static const struct snd_pci_quirk cxt5066_fixups[] = { SND_PCI_QUIRK(0x1025, 0x0543, "Acer Aspire One 522", CXT_FIXUP_STEREO_DMIC), - SND_PCI_QUIRK(0x1025, 0x054c, "Acer Aspire 3830TG", CXT_FIXUP_GPIO1), + SND_PCI_QUIRK(0x1025, 0x054c, "Acer Aspire 3830TG", CXT_FIXUP_ASPIRE_3830), SND_PCI_QUIRK(0x1043, 0x138d, "Asus", CXT_FIXUP_HEADPHONE_MIC_PIN), SND_PCI_QUIRK(0x17aa, 0x20f2, "Lenovo T400", CXT_PINCFG_LENOVO_TP410), SND_PCI_QUIRK(0x17aa, 0x215e, "Lenovo T410", CXT_PINCFG_LENOVO_TP410),