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[Andrei Dziahel <1007542@xxxxxxxxxxxxxxxxxx>]

Christopher,

Yes, this still is an issue — though on raring it is reproduced not
every time I plug camera.

I will try to repro it on latest kernel, but later on.

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https://bugs.launchpad.net/bugs/1007542

Title:
  pulseaudio stops responding after plugging Logitech webcam in

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  Repro: plug Logitech C270 (one I have) webcam in USB port (others with
  builtin microphone are affected most likely)

  Expected: device hooks up and works properly
  Actual behavior: pulseaudio becomes unresponsive (totem freezes, volume controls work with huge delay, sound is not played at all), dmesg becomes flooded with messages like "7:3:4: cannot set freq 48000 to ep 0x86"

  After unplugging webcam pulseaudio becomes responsive again.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: pulseaudio 1:1.1-0ubuntu15.1
  ProcVersionSignature: Ubuntu 3.2.0-25.40-generic-pae 3.2.18
  Uname: Linux 3.2.0-25-generic-pae i686
  NonfreeKernelModules: nvidia
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu8
  Architecture: i386
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/pcmC1D0c:   andy      17317 F...m pulseaudio
   /dev/snd/controlC2:  andy      17317 F.... pulseaudio
   /dev/snd/controlC0:  andy      17317 F.... pulseaudio
  Card0.Amixer.info:
   Card hw:0 'SB'/'HDA ATI SB at 0xfbff4000 irq 16'
     Mixer name	: 'Realtek ALC889'
     Components	: 'HDA:10ec0889,14627388,00100004'
     Controls      : 47
     Simple ctrls  : 23
  Card1.Amixer.info:
   Card hw:1 'U0x46d0x825'/'USB Device 0x46d:0x825 at usb-0000:00:12.2-2, high speed'
     Mixer name	: 'USB Mixer'
     Components	: 'USB046d:0825'
     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 - 6144
     Mono: Capture 6144 [100%] [30.00dB] [off]
  Card2.Amixer.info:
   Card hw:2 'NVidia'/'HDA NVidia at 0xfeafc000 irq 19'
     Mixer name	: 'Nvidia GPU 16 HDMI/DP'
     Components	: 'HDA:10de0016,10de0101,00100100'
     Controls      : 25
     Simple ctrls  : 5
  Date: Fri Jun  1 19:48:01 2012
  SourcePackage: pulseaudio
  UpgradeStatus: Upgraded to precise on 2012-04-26 (35 days ago)
  dmi.bios.date: 05/12/2010
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: V8.6
  dmi.board.asset.tag: To Be Filled By O.E.M.
  dmi.board.name: 770T-C45 (MS-7388)
  dmi.board.vendor: MICRO-STAR INTERNATIONAL CO.,LTD
  dmi.board.version: 3.0
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: MICRO-STAR INTERNATIONAL CO.,LTD
  dmi.chassis.version: 3.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrV8.6:bd05/12/2010:svnMICRO-STARINTERNATIONALCO.,LTD:pnMS-7388:pvr3.0:rvnMICRO-STARINTERNATIONALCO.,LTD:rn770T-C45(MS-7388):rvr3.0:cvnMICRO-STARINTERNATIONALCO.,LTD:ct3:cvr3.0:
  dmi.product.name: MS-7388
  dmi.product.version: 3.0
  dmi.sys.vendor: MICRO-STAR INTERNATIONAL CO.,LTD

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