Lenovo B50-70 inverted internal microphone

[Marian Lozanov]

https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1002978
Attached the alsa-info txt to this bug
---
ApportVersion: 2.19.1-0ubuntu5
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: marian 1981 F.... pulseaudio
 /dev/snd/pcmC1D0c: marian 1981 F...m pulseaudio
 /dev/snd/pcmC1D0p: marian 1981 F...m pulseaudio
 /dev/snd/controlC1: marian 1981 F.... pulseaudio
CurrentDesktop: Unity
DistroRelease: Ubuntu 15.10
HibernationDevice: RESUME=UUID=10570c82-8e52-4379-9a8e-2e30baae9f63
InstallationDate: Installed on 2015-09-10 (90 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
MachineType: LENOVO 20384
Package: linux (not installed)
ProcFB:
 0 inteldrmfb
 1 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-19-generic root=UUID=1791e4c1-12de-4fef-88b1-31716c981648 ro quiet splash
ProcVersionSignature: Ubuntu 4.2.0-19.23-generic 4.2.6
RelatedPackageVersions:
 linux-restricted-modules-4.2.0-19-generic N/A
 linux-backports-modules-4.2.0-19-generic N/A
 linux-firmware 1.149.3
Tags: wily
Uname: Linux 4.2.0-19-generic x86_64
UpgradeStatus: Upgraded to wily on 2015-10-24 (45 days ago)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 07/21/2015
dmi.bios.vendor: LENOVO
dmi.bios.version: 9DCN34WW(V3.04)
dmi.board.asset.tag: No Asset Tag
dmi.board.name: Lenovo B50-70
dmi.board.vendor: LENOVO
dmi.board.version: 00000000NO DPK
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo B50-70
dmi.modalias: dmi:bvnLENOVO:bvr9DCN34WW(V3.04):bd07/21/2015:svnLENOVO:pn20384:pvrLenovoB50-70:rvnLENOVO:rnLenovoB50-70:rvr00000000NODPK:cvnLENOVO:ct10:cvrLenovoB50-70:
dmi.product.name: 20384
dmi.product.version: Lenovo B50-70
dmi.sys.vendor: LENOVO

[Brad Figg (brad-figg)]

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 1524215

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Marian Lozanov (marianlozanov)]

apport information

[Marian Lozanov (marianlozanov)]

apport information

[Marian Lozanov (marianlozanov)]

apport information

[Marian Lozanov (marianlozanov)]

apport information

[Marian Lozanov (marianlozanov)]

apport information

[Marian Lozanov (marianlozanov)]

apport information

[Marian Lozanov (marianlozanov)]

apport information

[Marian Lozanov (marianlozanov)]

apport information

[Marian Lozanov (marianlozanov)]

apport information

[Marian Lozanov (marianlozanov)]

apport information

[Marian Lozanov (marianlozanov)]

apport information

[Marian Lozanov (marianlozanov)]

apport information

[Marian Lozanov (marianlozanov)]

apport information

[Marian Lozanov (marianlozanov)]

apport information

[Marian Lozanov (marianlozanov)]

apport information

[Marian Lozanov (marianlozanov)]

apport information

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Michał Wadowski (wadosm)]

I can confirm that bug still exists in Linux Kernel 5.1.0.

I created patch to fix this issue.

[Ubuntu Foundations Team Bug Bot (crichton)]

The attachment "fix_for_lenovo_b50-70_inverted_internal_microphone_bug.patch" seems to be a patch. If it isn't, please remove the "patch" flag from the attachment, remove the "patch" tag, and if you are a member of the ~ubuntu-reviewers, unsubscribe the team.

[This is an automated message performed by a Launchpad user owned by ~brian-murray, for any issues please contact him.]

[Hui Wang (hui.wang)]

@Michat,

Could you send your patch to upstream maillist? <email address hidden>

[Daniel van Vugt (vanvugt)]

Thank you for reporting this bug to Ubuntu.
Ubuntu 15.10 (wily) reached end-of-life on July 28, 2016.

See this document for currently supported Ubuntu releases:
https://wiki.ubuntu.com/Releases

We appreciate that this bug may be old and you might not be interested in discussing it any more. But if you are then please upgrade to the latest Ubuntu version and re-test. If you then find the bug is still present in the newer Ubuntu version, please add a comment here telling us which new version it is in and change the bug status to Confirmed.

[Launchpad Janitor (janitor)]

[Expired for alsa-driver (Ubuntu) because there has been no activity for 60 days.]