Public bug reported:
Logitech AK5370 USB microphone works for a few seconds, then go mute, as
seen from PAVU.
Unplugging and repluging will cause the mic to be recognized again for a
few seconds.
This is new behavior, although I recall similar problem years ago.
~$ lsusb
Bus 004 Device 002: ID 1532:0012 Razer USA, Ltd
Bus 004 Device 004: ID 0556:0001 Asahi Kasei Microsystems Co., Ltd AK5370 I/F
A/D Converter
Bus 005 Device 002: ID 04ca:002a Lite-On Technology Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
$ lsb_release -rd
Description: Ubuntu 12.04.4 LTS
Release: 12.04
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: pulseaudio 1:1.1-0ubuntu15.4
ProcVersionSignature: Ubuntu 3.5.0-47.71~precise1-generic 3.5.7.30
Uname: Linux 3.5.0-47-generic x86_64
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.25.
ApportVersion: 2.0.1-0ubuntu17.6
Architecture: amd64
Card0.Amixer.info:
Card hw:0 'SB'/'HDA ATI SB at 0xfeaf0000 irq 16'
Mixer name : 'Realtek ALC887'
Components : 'HDA:10ec0887,105b0e37,00100202'
Controls : 44
Simple ctrls : 20
Card1.Amixer.info:
Card hw:1 'NVidia'/'HDA NVidia at 0xfcf7c000 irq 19'
Mixer name : 'Nvidia GPU 0b HDMI/DP'
Components : 'HDA:10de000b,10de0101,00100200'
Controls : 24
Simple ctrls : 4
Card2.Amixer.info:
Card hw:2 'AK5370'/'AKM AK5370 at usb-0000:00:12.1-3, full speed'
Mixer name : 'USB Mixer'
Components : 'USB0556:0001'
Controls : 2
Simple ctrls : 1
Card2.Amixer.values:
Simple mixer control 'Mic',0
Capabilities: cvolume cvolume-joined cswitch cswitch-joined penum
Capture channels: Mono
Limits: Capture 0 - 78
Mono: Capture 72 [92%] [14.00dB] [on]
Date: Fri Mar 21 10:44:10 2014
InstallationMedia: Mythbuntu 12.04.2 "Precise Pangolin" - Release amd64
(20130213)
MarkForUpload: True
ProcEnviron:
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: pulseaudio
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/10/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 080016
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: A88GMV
dmi.board.vendor: FOXCONN
dmi.board.version: 1.0
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr080016:bd06/10/2010:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnFOXCONN:rnA88GMV:rvr1.0:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: To Be Filled By O.E.M.
dmi.product.version: To Be Filled By O.E.M.
dmi.sys.vendor: To Be Filled By O.E.M.
** Affects: pulseaudio (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug precise
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https://bugs.launchpad.net/bugs/1295776
Title:
usb mic stops after few seconds
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