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[Lastique <1264654@xxxxxxxxxxxxxxxxxx>]

> After some experimenting I found that when I connect the camera to one
of the black USB 2.0 ports I get the audio.

I spoke too soon. The audio disappeared after reboot. I tried re-
plugging the camera in the same or different USB port but it doesn't
help. It seems the problem is not stable.

I tried booting Trusty live and installing 3.13 rc6 kernel on Saucy. In
both cases I get no audio from the camera.


** Changed in: linux (Ubuntu)
       Status: Incomplete => Confirmed

** Tags removed: needs-upstream-testing
** Tags added: kernel-bug-exists-upstream kernel-bug-exists-upstream-v3.13-rc6

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https://bugs.launchpad.net/bugs/1264654

Title:
  046d:082d [Asus P8Z68-V PRO] No sound from Logitech HD Pro Webcam C920

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  I'm trying to use Logitech HD Pro Webcam C920 on Ubuntu 13.10, but not
  getting any sound from it. The camera is detected properly and
  displayed in Pulseaudio volume control, it's not muted but the audio
  level bar always stays at 0. I can see video from it in Skype or
  WebRTC apps in Chrome, but no audio. I can see no errors in dmesg or
  other logs.

  Kernel version: Ubuntu 3.11.0-14.21-generic 3.11.7
  pulseaudio version: 1:4.0-0ubuntu6
  --- 
  ApportVersion: 2.12.5-0ubuntu2.2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  lastique   2393 F.... pulseaudio
   /dev/snd/controlC1:  lastique   2393 F.... pulseaudio
   /dev/snd/pcmC1D0p:   lastique   2393 F...m pulseaudio
   /dev/snd/controlC2:  lastique   2393 F.... pulseaudio
  DistroRelease: Ubuntu 13.10
  InstallationDate: Installed on 2012-12-29 (363 days ago)
  InstallationMedia: Kubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.1)
  IwConfig:
   eth0      no wireless extensions.
   
   lo        no wireless extensions.
   
   virbr0    no wireless extensions.
  MachineType: System manufacturer System Product Name
  MarkForUpload: True
  NonfreeKernelModules: nvidia
  Package: linux (not installed)
  ProcFB:
   
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-14-generic root=UUID=9e81b2ba-5525-4d9d-b45c-48093a115d64 ro quiet splash nomodeset
  ProcVersionSignature: Ubuntu 3.11.0-14.21-generic 3.11.7
  RelatedPackageVersions:
   linux-restricted-modules-3.11.0-14-generic N/A
   linux-backports-modules-3.11.0-14-generic  N/A
   linux-firmware                             1.116
  RfKill:
   0: hci0: Bluetooth
   	Soft blocked: no
   	Hard blocked: no
  Tags:  saucy
  Uname: Linux 3.11.0-14-generic x86_64
  UpgradeStatus: Upgraded to saucy on 2013-10-17 (71 days ago)
  UserGroups: adm cdrom dip fuse libvirtd lpadmin plugdev sambashare sudo
  dmi.bios.date: 11/09/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 3603
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: P8Z68-V PRO
  dmi.board.vendor: ASUSTeK Computer INC.
  dmi.board.version: Rev 1.xx
  dmi.chassis.asset.tag: Asset-1234567890
  dmi.chassis.type: 3
  dmi.chassis.vendor: Chassis Manufacture
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr3603:bd11/09/2012:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP8Z68-VPRO:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
  dmi.product.name: System Product Name
  dmi.product.version: System Version
  dmi.sys.vendor: System manufacturer
  --- 
  ApportVersion: 2.12.5-0ubuntu2.2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  lastique   2393 F.... pulseaudio
   /dev/snd/controlC1:  lastique   2393 F.... pulseaudio
   /dev/snd/pcmC1D0p:   lastique   2393 F...m pulseaudio
   /dev/snd/controlC2:  lastique   2393 F.... pulseaudio
  DistroRelease: Ubuntu 13.10
  InstallationDate: Installed on 2012-12-29 (363 days ago)
  InstallationMedia: Kubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.1)
  IwConfig:
   eth0      no wireless extensions.
   
   lo        no wireless extensions.
   
   virbr0    no wireless extensions.
  MachineType: System manufacturer System Product Name
  MarkForUpload: True
  NonfreeKernelModules: nvidia
  Package: linux (not installed)
  ProcFB:
   
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-14-generic root=UUID=9e81b2ba-5525-4d9d-b45c-48093a115d64 ro quiet splash nomodeset
  ProcVersionSignature: Ubuntu 3.11.0-14.21-generic 3.11.7
  RelatedPackageVersions:
   linux-restricted-modules-3.11.0-14-generic N/A
   linux-backports-modules-3.11.0-14-generic  N/A
   linux-firmware                             1.116
  RfKill:
   0: hci0: Bluetooth
   	Soft blocked: no
   	Hard blocked: no
  Tags:  saucy
  Uname: Linux 3.11.0-14-generic x86_64
  UpgradeStatus: Upgraded to saucy on 2013-10-17 (71 days ago)
  UserGroups: adm cdrom dip fuse libvirtd lpadmin plugdev sambashare sudo
  dmi.bios.date: 11/09/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 3603
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: P8Z68-V PRO
  dmi.board.vendor: ASUSTeK Computer INC.
  dmi.board.version: Rev 1.xx
  dmi.chassis.asset.tag: Asset-1234567890
  dmi.chassis.type: 3
  dmi.chassis.vendor: Chassis Manufacture
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr3603:bd11/09/2012:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP8Z68-VPRO:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
  dmi.product.name: System Product Name
  dmi.product.version: System Version
  dmi.sys.vendor: System manufacturer

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