← Back to team overview

kernel-packages team mailing list archive

[Bug 1504778] Re: [PATCH] ALSA: hda - Fix inverted internal mic on Lenovo G50-80


On Tue, 13 Oct 2015 10:10:18 +0200,
David Henningsson wrote:
> Add the appropriate quirk to indicate the Lenovo G50-80 has a stereo
> mic input where one channel has reverse polarity.
> Alsa-info available at:
> https://launchpadlibrarian.net/220846272/AlsaInfo.txt
> Cc: stable@xxxxxxxxxxxxxxx
> BugLink: https://bugs.launchpad.net/bugs/1504778
> Signed-off-by: David Henningsson <david.henningsson@xxxxxxxxxxxxx>

Applied, thanks.


> ---
>  sound/pci/hda/patch_conexant.c | 1 +
>  1 file changed, 1 insertion(+)
> diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
> index ca03c40..2f0ec7c 100644
> --- a/sound/pci/hda/patch_conexant.c
> +++ b/sound/pci/hda/patch_conexant.c
> @@ -819,6 +819,7 @@ static const struct snd_pci_quirk cxt5066_fixups[] = {
>  	SND_PCI_QUIRK(0x17aa, 0x21da, "Lenovo X220", CXT_PINCFG_LENOVO_TP410),
>  	SND_PCI_QUIRK(0x17aa, 0x21db, "Lenovo X220-tablet", CXT_PINCFG_LENOVO_TP410),
>  	SND_PCI_QUIRK(0x17aa, 0x38af, "Lenovo IdeaPad Z560", CXT_FIXUP_MUTE_LED_EAPD),
> +	SND_PCI_QUIRK(0x17aa, 0x390b, "Lenovo G50-80", CXT_FIXUP_STEREO_DMIC),
>  	SND_PCI_QUIRK(0x17aa, 0x3975, "Lenovo U300s", CXT_FIXUP_STEREO_DMIC),
>  	SND_PCI_QUIRK(0x17aa, 0x3977, "Lenovo IdeaPad U310", CXT_FIXUP_STEREO_DMIC),
>  	SND_PCI_QUIRK(0x17aa, 0x397b, "Lenovo S205", CXT_FIXUP_STEREO_DMIC),
> -- 
> 1.9.1

You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.

  Lenovo G50-80 - Inverted Internal microphone (phase inversion)

Status in linux package in Ubuntu:
  Fix Committed

Bug description:
  Can confirm the bug on Lenovo g50-80.

  Alsa-hda-dkms package doesn't help (there is no "Inverted Internal
  Mic" entry in alsamixer after reboot).

  Removed alsa-hda-dkms and tried "option snd-hda-intel model=auto" but
  it doesn't help.

  Workaround "mute right channel" works but can it be fixed permanently
  (I don't want to manually mute right mic channel every time I use

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: alsa-base 1.0.25+dfsg-0ubuntu4
  ProcVersionSignature: Ubuntu 3.19.0-30.34~14.04.1-generic 3.19.8-ckt6
  Uname: Linux 3.19.0-30-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.15
  Architecture: amd64
   /dev/snd/pcmC1D0p:   nikola     1819 F...m pulseaudio
   /dev/snd/controlC1:  nikola     1819 F.... pulseaudio
   /dev/snd/controlC0:  nikola     1819 F.... pulseaudio
  CurrentDesktop: KDE
  Date: Sat Oct 10 15:31:56 2015
  InstallationDate: Installed on 2015-10-06 (3 days ago)
  InstallationMedia: Kubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
  PackageArchitecture: all
  SourcePackage: alsa-driver
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/27/2015
  dmi.bios.vendor: LENOVO
  dmi.bios.version: B0CN72WW
  dmi.board.asset.tag: NO Asset Tag
  dmi.board.name: Lenovo G50-80
  dmi.board.vendor: LENOVO
  dmi.board.version: NO DPK
  dmi.chassis.asset.tag: NO Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Lenovo G50-80
  dmi.modalias: dmi:bvnLENOVO:bvrB0CN72WW:bd01/27/2015:svnLENOVO:pn80L0:pvrLenovoG50-80:rvnLENOVO:rnLenovoG50-80:rvrNODPK:cvnLENOVO:ct10:cvrLenovoG50-80:
  dmi.product.name: 80L0
  dmi.product.version: Lenovo G50-80
  dmi.sys.vendor: LENOVO

To manage notifications about this bug go to: