kernel-packages team mailing list archive

[Takashi Iwai <tiwai@xxxxxxx>]

On Mon, 11 Jan 2016 09:33:14 +0100,
David Henningsson wrote:
> 
> Inform userspace that one channel of the internal mic has reversed
> polarity, so it does not attempt to add both channels together and
> end up with silence.
> 
> Cc: stable@xxxxxxxxxxxxxxx
> Reported-by: Andrzej Mendel <andrzej.mendel@xxxxxxxxx>
> Alsa-info: http://www.alsa-project.org/db/?f=3088f82a0cf977855f92af9db8ad406c04f71efa
> BugLink: https://bugs.launchpad.net/bugs/1529624
> Signed-off-by: David Henningsson <david.henningsson@xxxxxxxxxxxxx>

Applied, thanks.


Takashi

> ---
>  sound/pci/hda/patch_realtek.c | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
> index 3a89d82..2fdda51 100644
> --- a/sound/pci/hda/patch_realtek.c
> +++ b/sound/pci/hda/patch_realtek.c
> @@ -4666,6 +4666,7 @@ enum {
>  	ALC290_FIXUP_SUBWOOFER,
>  	ALC290_FIXUP_SUBWOOFER_HSJACK,
>  	ALC269_FIXUP_THINKPAD_ACPI,
> +	ALC269_FIXUP_DMIC_THINKPAD_ACPI,
>  	ALC255_FIXUP_DELL1_MIC_NO_PRESENCE,
>  	ALC255_FIXUP_DELL2_MIC_NO_PRESENCE,
>  	ALC255_FIXUP_HEADSET_MODE,
> @@ -5103,6 +5104,12 @@ static const struct hda_fixup alc269_fixups[] = {
>  		.type = HDA_FIXUP_FUNC,
>  		.v.func = hda_fixup_thinkpad_acpi,
>  	},
> +	[ALC269_FIXUP_DMIC_THINKPAD_ACPI] = {
> +		.type = HDA_FIXUP_FUNC,
> +		.v.func = alc_fixup_inv_dmic,
> +		.chained = true,
> +		.chain_id = ALC269_FIXUP_THINKPAD_ACPI,
> +	},
>  	[ALC255_FIXUP_DELL1_MIC_NO_PRESENCE] = {
>  		.type = HDA_FIXUP_PINS,
>  		.v.pins = (const struct hda_pintbl[]) {
> @@ -5457,6 +5464,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
>  	SND_PCI_QUIRK(0x17aa, 0x2226, "ThinkPad X250", ALC292_FIXUP_TPT440_DOCK),
>  	SND_PCI_QUIRK(0x17aa, 0x2233, "Thinkpad", ALC293_FIXUP_LENOVO_SPK_NOISE),
>  	SND_PCI_QUIRK(0x17aa, 0x30bb, "ThinkCentre AIO", ALC233_FIXUP_LENOVO_LINE2_MIC_HOTKEY),
> +	SND_PCI_QUIRK(0x17aa, 0x3902, "Lenovo E50-80", ALC269_FIXUP_DMIC_THINKPAD_ACPI),
>  	SND_PCI_QUIRK(0x17aa, 0x3977, "IdeaPad S210", ALC283_FIXUP_INT_MIC),
>  	SND_PCI_QUIRK(0x17aa, 0x3978, "IdeaPad Y410P", ALC269_FIXUP_NO_SHUTUP),
>  	SND_PCI_QUIRK(0x17aa, 0x5013, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
> -- 
> 1.9.1
>

-- 
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https://bugs.launchpad.net/bugs/1529624

Title:
  Lenovo E50-80 inverted microphone not detected properly

Status in linux package in Ubuntu:
  In Progress

Bug description:
  System: Lenovo E50-80 with Ubuntu 15.10. Tested with both kernel
  4.2.0-22-generic from official repos and 4.4.0-040400rc6-generic from
  Mainline Kernel repo.

  Alsa information: http://www.alsa-
  project.org/db/?f=3088f82a0cf977855f92af9db8ad406c04f71efa

  Internal microphone does not pick up sound by default. When I mute one
  channel, it works (this is not a good workaround since some
  application, such as Facebook Messenger, unmute both channels and set
  them to the same level automatically).

  Adding model=inv-dmic to snd-hda-intel module options does not change
  a thing.

  Hope that helps, tell me if you need more info.

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