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[Launchpad Bug Tracker <1205090@xxxxxxxxxxxxxxxxxx>]

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

** Changed in: linux (Ubuntu)
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1205090

Title:
  046d:c525 USB microphone quits working after a few seconds

Status in “linux” package in Ubuntu:
  Expired

Bug description:
  On my Mythbuntu 12.04.2 HTPC, my USB microphone (Logitech AK5370)
  works for a few seconds, then stops producing signal from audio input.
  The system recognizes it there, it just stays mute. This happens on
  all USB ports. It has worked fine for months.

  I`m confident it's not the hardware because the microphone works fine
  with Win7 and also on other computers.

      $ uname -a
      Linux KISE-066 3.5.0-34-generic #55~precise1-Ubuntu SMP Fri Jun 7 16:25:50 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

      $ lsusb
      Bus 001 Device 002: ID 05e3:0608 Genesys Logic, Inc. USB-2.0 4-Port HUB
      Bus 005 Device 002: ID 1532:001c Razer USA, Ltd RZ01-0036 Optical Gaming Mouse [Abyssus]
      Bus 005 Device 003: ID 0556:0001 Asahi Kasei Microsystems Co., Ltd AK5370 I/F A/D Converter
      Bus 006 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
      Bus 001 Device 003: ID 05e3:0608 Genesys Logic, Inc. USB-2.0 4-Port HUB
      Bus 001 Device 004: ID 046d:c525 Logitech, Inc. MX Revolution Cordless Mouse

  Re-install of Mythbuntu is impracticable.

  --------------
  I tried the fix in [this question][1] (changing gstreamer settings) but it didn't work.

  After every change, the mic would work as seen on Pulse Audio Volume
  Control for a few seconds, then the "level" on the level caught at the
  few seconds when it stopped working.

  ----------------
  I installed Audacity to monitor the microphone's input level.

  With the settings ALSA > default > AK5370:USB Audio (hw:1,0): Line 0
  the level meter shows the mic working.

  -----------------

  Using a "trick" from the old days, I re-installed the following...

      gstreamer0.10-pulseaudio (version 0.10.31-1ubuntu1.2) will be re-installed
      libcanberra-pulse (version 0.28-3ubuntu3) will be re-installed
      libpulse-mainloop-glib0 (version 1:1.1-0ubuntu15.3) will be re-installed
      libpulse-mainloop-glib0:i386 (version 1:1.1-0ubuntu15.3) will be re-installed
      libpulse0 (version 1:1.1-0ubuntu15.3) will be re-installed
      libpulse0:i386 (version 1:1.1-0ubuntu15.3) will be re-installed
      libpulsedsp (version 1:1.1-0ubuntu15.3) will be re-installed
      libpulsedsp:i386 (version 1:1.1-0ubuntu15.3) will be re-installed
      libusb-0.1-4 (version 2:0.1.12-20) will be re-installed
      libusb-0.1-4:i386 (version 2:0.1.12-20) will be re-installed
      libusb-1.0-0 (version 2:1.0.9~rc3-2ubuntu1) will be re-installed
      paman (version 0.9.4-1ubuntu3) will be re-installed
      paprefs (version 0.9.10-0ubuntu1) will be re-installed
      pavucontrol (version 0.99.2-1build1) will be re-installed
      pavumeter (version 0.9.3-1ubuntu2) will be re-installed
      pulseaudio (version 1:1.1-0ubuntu15.3) will be re-installed
      pulseaudio-module-gconf (version 1:1.1-0ubuntu15.3) will be re-installed
      pulseaudio-module-x11 (version 1:1.1-0ubuntu15.3) will be re-installed
      pulseaudio-module-zeroconf (version 1:1.1-0ubuntu15.3) will be re-installed
      pulseaudio-utils (version 1:1.1-0ubuntu15.3) will be re-installed
      usbutils (version 1:005-1) will be re-installed

  ...and rebooted.

  No help.

  --------------
  I have discovered that after closing and reopening Pulse Audio Volume Control, the microphone volume level will show the microphone working fo a few seconds, then "freezing".

  ???

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.5.0-36-generic 3.5.0-36.57~precise1
  ProcVersionSignature: Ubuntu 3.5.0-36.57~precise1-generic 3.5.7.14
  Uname: Linux 3.5.0-36-generic x86_64
  NonfreeKernelModules: nvidia
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.25.
  ApportVersion: 2.0.1-0ubuntu17.3
  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      : 45
     Simple ctrls  : 21
  Card1.Amixer.info:
   Card hw:1 'U0x46d0x8cc'/'USB Device 0x46d:0x8cc at usb-0000:00:13.2-2, high speed'
     Mixer name	: 'USB Mixer'
     Components	: 'USB046d:08cc'
     Controls      : 2
     Simple ctrls  : 1
  Card1.Amixer.values:
   Simple mixer control 'Mic',0
     Capabilities: cvolume cvolume-joined cswitch cswitch-joined penum
     Capture channels: Mono
     Limits: Capture 0 - 3072
     Mono: Capture 3072 [100%] [30.00dB] [off]
  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 78 [100%] [20.00dB] [on]
  Card3.Amixer.info:
   Card hw:3 'NVidia'/'HDA NVidia at 0xfcf7c000 irq 19'
     Mixer name	: 'Nvidia GPU 0b HDMI/DP'
     Components	: 'HDA:10de000b,10de0101,00100200'
     Controls      : 24
     Simple ctrls  : 4
  Date: Thu Jul 25 13:04:02 2013
  HibernationDevice: RESUME=UUID=c2677190-8a40-6d44-8ea3-77a2603409b3
  InstallationMedia: Mythbuntu 12.04.2 "Precise Pangolin" - Release amd64 (20130213)
  MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
  MarkForUpload: True
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 VESA VGA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-36-generic root=UUID=b0bbb0b3-4454-4f64-8da1-083c6a688b54 ro verbose
  RelatedPackageVersions:
   linux-restricted-modules-3.5.0-36-generic N/A
   linux-backports-modules-3.5.0-36-generic  N/A
   linux-firmware                            1.79.4
  RfKill: Error: [Errno 2] No such file or directory
  SourcePackage: linux
  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.

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