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[truthy <1319443@xxxxxxxxxxxxxxxxxx>]

I've already contacted the appropriate mailing-list (Linux USB) with
reference to this bugreport and received a response. If there'r any more
logfiles I should upload, please let me know.

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https://bugs.launchpad.net/bugs/1319443

Title:
  xhci usb 3.0 logitech c920 not working

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  Hello,

  my usb webcam logitech c920 doesn't work when connected to my usb 3.0
  host controller (Etron EJ168a). when connected to a usb 2.0 host
  controller it works perfectly. when i connect my usb 3.0 stick to the
  same port it's recognized and also works  - just not the webcam.
  disabling usb 3.0 legacy mode (xhci) in my bios doesn't change
  anything, it's still used instead of ehci. kernel problem?

  lspci
  06:00.0 USB controller: Etron Technology, Inc. EJ168 USB 3.0 Host Controller (rev 01)

  dmesg | grep usb
  usb 3-1: Not enough bandwidth for altsetting 3
  3:3:3: usb_set_interface failed (-22)

  dmesg | grep xhci
  xhci_hcd 0000:06:00.0: ERROR: unexpected command completion code 0x11.

  Ubuntu 14.04 x64
  3.13.0-24-generic
  Mainboard: Asrock Z68 Pro3 Gen3
  Bios: P2.30 (latest)
  --- 
  ApportVersion: 2.14.1-0ubuntu3.1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC3:  truthy     1586 F.... pulseaudio
   /dev/snd/controlC2:  truthy     1586 F.... pulseaudio
   /dev/snd/pcmC2D0p:   truthy     1586 F...m pulseaudio
   /dev/snd/controlC0:  truthy     1586 F.... pulseaudio
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 14.04
  HibernationDevice: RESUME=UUID=646b5559-d036-471d-9f6e-29068cf6172b
  InstallationDate: Installed on 2012-11-29 (531 days ago)
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
  MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
  NonfreeKernelModules: wl nvidia
  Package: linux (not installed)
  ProcFB:
   
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic root=UUID=5adf789b-4753-49d0-bae6-91dae8cc3701 ro splash
  ProcVersionSignature: Ubuntu 3.13.0-24.47-generic 3.13.9
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-24-generic N/A
   linux-backports-modules-3.13.0-24-generic  N/A
   linux-firmware                             1.127.2
  Tags:  trusty
  Uname: Linux 3.13.0-24-generic x86_64
  UpgradeStatus: Upgraded to trusty on 2014-05-09 (5 days ago)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 06/29/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P2.30
  dmi.board.name: Z68 Pro3 Gen3
  dmi.board.vendor: ASRock
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: To Be Filled By O.E.M.
  dmi.chassis.version: To Be Filled By O.E.M.
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP2.30:bd06/29/2012:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnZ68Pro3Gen3:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
  dmi.product.name: To Be Filled By O.E.M.
  dmi.product.version: To Be Filled By O.E.M.
  dmi.sys.vendor: To Be Filled By O.E.M.

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