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[Jabro <jabro91@xxxxxx>]

the headset is working under ubuntu 15.04 without modifications on prior
ubuntu versions (not shure about 14.x), I also had problems with it.

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https://bugs.launchpad.net/bugs/1044618

Title:
  USB Headset Not Working(Jabra 2400 Biz)

Status in alsa-driver package in Ubuntu:
  Confirmed

Bug description:
  I have Jabra 2400 Biz headphone(with mic). Its not working in ubuntu
  12.04. I killed pulse audio and restarted it .Following is the output
  :

  "W: [pulseaudio] sink.c: Default and alternate sample rates are the same.
  E: [alsa-sink] alsa-sink.c: ALSA woke us up to write new data to the device, but there was actually nothing to write!
  E: [alsa-sink] alsa-sink.c: Most likely this is a bug in the ALSA driver 'snd_usb_audio'. Please report this issue to the ALSA developers.
  E: [alsa-sink] alsa-sink.c: We were woken up with POLLOUT set -- however a subsequent snd_pcm_avail() returned 0 or another value < min_avail."

  Other Commands Output :

  aplay -l
  **** List of PLAYBACK Hardware Devices ****
  card 0: PCH [HDA Intel PCH], device 0: CONEXANT Analog [CONEXANT Analog]
    Subdevices: 0/1
    Subdevice #0: subdevice #0
  card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
    Subdevices: 1/1
    Subdevice #0: subdevice #0
  card 0: PCH [HDA Intel PCH], device 7: HDMI 1 [HDMI 1]
    Subdevices: 1/1
    Subdevice #0: subdevice #0
  card 1: J2400 [Jabra BIZ 2400], device 0: USB Audio [USB Audio]
    Subdevices: 0/1
    Subdevice #0: subdevice #0

  Also i tried solutions for  bug 1002952 and 975941. Both not working.

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