Public bug reported:
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.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug precise qa-kernel-lts-testing
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https://bugs.launchpad.net/bugs/1205090
Title:
USB microphone quits working after a few seconds
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