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Thread: No USB sound devices listed/recognized

  1. #1
    Join Date
    Oct 2008
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    ExodusHair<Čubura
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    Distro
    Ubuntu Development Release

    No USB sound devices listed/recognized

    I was messing with my Saucy install and I've lost all USB sound devices from ALSA/Pulseaudio/Gstreamer...
    They are fully recognized if I boot from LiveCd (Saucy and update/upgrade to same state as install on HD...) so HW is working OK...
    None of several USB sound DAC's is being seen/recognized...
    Sound works OK through Radeon and through built-in-audio (S/PDIF)...
    I might have erased something that in fact is needed (cleaned via gtkorphan as I do on many occasions), but I doubt that that is what have happened...
    Code:
    :~$ lsusb
    Bus 001 Device 003: ID 058f:6362 Alcor Micro Corp. Flash Card Reader/Writer
    Bus 001 Device 004: ID 0b95:772a ASIX Electronics Corp. AX88772A Fast Ethernet
    Bus 001 Device 002: ID 05e3:0608 Genesys Logic, Inc. USB-2.0 4-Port HUB
    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 006 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 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 002 Device 002: ID 08bb:2706 Texas Instruments PCM2706 Audio Codec
    Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    As You can see USB PCM2706 (for example) is recognized by system. It is only not recognized by ALSA and hence by PulseAudio...
    Code:
    :~$ aplay -l
    **** List of PLAYBACK Hardware Devices ****
    card 0: SB [HDA ATI SB], device 0: ALC662 rev1 Analog [ALC662 rev1 Analog]
      Subdevices: 1/1
      Subdevice #0: subdevice #0
    card 0: SB [HDA ATI SB], device 1: ALC662 rev1 Digital [ALC662 rev1 Digital]
      Subdevices: 1/1
      Subdevice #0: subdevice #0
    card 1: HDMI [HDA ATI HDMI], device 3: HDMI 0 [HDMI 0]
      Subdevices: 1/1
      Subdevice #0: subdevice #0
    Any ideas?

    Update₁: I founf solution... Somehow in file /etc/modprobe.d/alsa-base.conf line
    Code:
    sna_usb_audio: index=-2
    resutfaced again. Commenting it out solved the problem...
    Also, just in case
    Code:
    modprobe -a snd-usb-audio
    was performed... Now it remains to be seen if it survives reboot...
    As they say: morning is smarter than midnight...

    Update₂: It works...
    Long live my notebook (paper, old-school) logs...
    Marking this SOLVED...
    Last edited by zika; September 16th, 2013 at 10:17 AM.

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