Ubuntu
alsa-driver package

[81FD, Realtek ALC236, Black Mic, Right] The external microphone is not detected

Bug #1965215 reported by Thales Freitas Macedo
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
alsa-driver (Ubuntu)
New
Undecided
Unassigned

Bug Description

Description: Ubuntu 20.04.4 LTS
Release: 20.04

When inserted in the 3.5mm phone jack, the external microphone is not detected, and thus the audio input doesn't auto-switch from the internal microphone to the external microphone.

The problem probably is related to the kernel version, as kernels 5.11.0-34, 5.11.0-36,5.11.0-37 and 5.11.0-38 works as expected, but kernels 5.4.0-104, 5.11.0-40, 5.11.0-41, 5.11.0-43, 5.11.0-44, 5.11.0-46, 5.13.0-30 and 5.13.0-35 don't. A similar problem happens for Debian 11.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 5.13.0-35.40~20.04.1-generic 5.13.19
Uname: Linux 5.13.0-35-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.21
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: thales 1485 F.... pulseaudio
 /dev/snd/pcmC0D0p: thales 1485 F...m pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Thu Mar 17 00:07:20 2022
InstallationDate: Installed on 2022-03-09 (7 days ago)
InstallationMedia: Ubuntu 20.04.4 LTS "Focal Fossa" - Release amd64 (20220223)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=pt_BR:pt:en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=pt_BR.UTF-8
 SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Symptom_Card: Áudio interno - HDA Intel PCH
Symptom_Jack: Black Mic, Right
Symptom_Type: No auto-switch between inputs
Title: [81FD, Realtek ALC236, Black Mic, Right] No autoswitch
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/19/2021
dmi.bios.release: 1.58
dmi.bios.vendor: LENOVO
dmi.bios.version: 8RCN58WW
dmi.board.asset.tag: NO Asset Tag
dmi.board.name: LNVNB161216
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40679 WIN
dmi.chassis.asset.tag: NO Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo ideapad 330-15IKB
dmi.ec.firmware.release: 1.58
dmi.modalias: dmi:bvnLENOVO:bvr8RCN58WW:bd05/19/2021:br1.58:efr1.58:svnLENOVO:pn81FD:pvrLenovoideapad330-15IKB:rvnLENOVO:rnLNVNB161216:rvrSDK0J40679WIN:cvnLENOVO:ct10:cvrLenovoideapad330-15IKB:skuLENOVO_MT_81FD_BU_idea_FM_ideapad330-15IKB:
dmi.product.family: ideapad 330-15IKB
dmi.product.name: 81FD
dmi.product.sku: LENOVO_MT_81FD_BU_idea_FM_ideapad 330-15IKB
dmi.product.version: Lenovo ideapad 330-15IKB
dmi.sys.vendor: LENOVO

Revision history for this message
Thales Freitas Macedo (vdvdlk) wrote :
Ubuntu Foundations Team Bug Bot (crichton)
affects: ubuntu → alsa-driver (Ubuntu)
Revision history for this message
Chris Chambers (chrischmbrs5) wrote :

Same here on a HP 14 Stream laptop with this Realtek ALC236 sound card running Xubuntu 20.04. Also pluging in an external headset and microphone the laptop speakers do not mute and the headphones do not go live, they remain muted.

Maybe worth noting that; Using pavucontrol having plugged in headset i can switch to headphones which then transmit sound and the external microphone opperates ok but even then pavucontrol states headset as un-plugged same as before plugging in. Laptop speakers mute once switched to headset and i presume the internal microphone is blanked.

With regret i have deinstalled Xubuntu and reinstalled Arch Linux and so i cannot test further. It is obvious to me that this bug? is not distribution specific and is generic becouse exactly the same problem in Arch. I could test or check and report here from this Arch install if such information is useful to you.

Best wishes to you, Chris

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