Public bug reported:
I have an USB sound card that was working in Saucy after the initial
distro upgrade, but stopped working afterwards: there is no way to get
anything to play through it as the sound applet stopped showing it in
the list of available cards. The sound card hardware is OK, it just
passed the playback tests of "ubuntu-bug -s audio". Alsamixer shows the
card.
ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: alsa-base 1.0.25+dfsg-0ubuntu4
ProcVersionSignature: Ubuntu 3.11.0-13.20-generic 3.11.6
Uname: Linux 3.11.0-13-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.12.5-0ubuntu2.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC2: laurynas 3599 F.... pulseaudio
/dev/snd/controlC1: laurynas 3599 F.... pulseaudio
/dev/snd/controlC0: laurynas 3599 F.... pulseaudio
/dev/snd/pcmC0D0p: laurynas 3599 F...m pulseaudio
Date: Thu Nov 21 10:48:34 2013
EcryptfsInUse: Yes
InstallationDate: Installed on 2011-03-16 (981 days ago)
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
MarkForUpload: True
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:DAC successful
Symptom_Card: ThinkPad EC - ThinkPad Console Audio Control
Symptom_DevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC2: laurynas 3599 F.... pulseaudio
/dev/snd/controlC1: laurynas 3599 F.... pulseaudio
/dev/snd/controlC0: laurynas 3599 F.... pulseaudio
/dev/snd/pcmC0D0p: laurynas 3599 F...m pulseaudio
Symptom_PulsePlaybackTest: PulseAudio playback test successful
Symptom_Type: No sound at all
Title: [USB-Audio - USB Audio DAC, playback] No sound at all
UpgradeStatus: Upgraded to saucy on 2013-10-19 (32 days ago)
dmi.bios.date: 09/26/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 6IET84WW (1.44 )
dmi.board.name: 2537CA0
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias:
dmi:bvnLENOVO:bvr6IET84WW(1.44):bd09/26/2012:svnLENOVO:pn2537CA0:pvrThinkPadT410:rvnLENOVO:rn2537CA0:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 2537CA0
dmi.product.version: ThinkPad T410
dmi.sys.vendor: LENOVO
mtime.conffile..etc.modprobe.d.alsa.base.conf: 2013-11-21T10:28:34.424626
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug saucy
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https://bugs.launchpad.net/bugs/1253552
Title:
[USB-Audio - USB Audio DAC, playback] USB DAC in alsamixer, but not in
Sound Settings or any apps
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