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[Byoungchan Lee <byoungchan.lee@xxxxxxx>]

I did installed 3.16-rc7 Kernel and tested about 10 days, and it seems there are no problems related to USB connectivity. 
Everytime I boot or reboot my machine I can use my USB keyboard and mice.
Do I need to bisect kernels in order to find when such fix is occured?

** Tags added: kernel-fixed-upstream kernel-fixed-upstream-3.16-rc7

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

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

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https://bugs.launchpad.net/bugs/1349295

Title:
  xhci_hcd failed to load, and USB Devices are not working.

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  When I boot my ubuntu, sometimes no USB Device is recognized. (I usually use Wireless mouse with USB Transmitter)
  (Keyboard in the laptop and touchpad is working.)

  Restarting does not help, but shutdowning my laptop and booting again it usually works perfectly.
  ("Sometimes" cold boot won`t help too, then try again then it is works.)

  It seems that problem is occures when loading xhci_hcd, since I cannot find any error related on xhci_hcd when USB devices are recognized well, but As in the log, xhci_hcd throws some message, and it doesn`t apper that kind of log is a normal behavior.
  [   28.357544] xhci_hcd 0000:00:14.0: xHCI host not responding to stop endpoint command.
  [   28.357549] xhci_hcd 0000:00:14.0: Assuming host is dying, halting host.
  [   28.357584] xhci_hcd 0000:00:14.0: HC died; cleaning up

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-32-generic 3.13.0-32.57
  ProcVersionSignature: Ubuntu 3.13.0-32.57-generic 3.13.11.4
  Uname: Linux 3.13.0-32-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  leebc      1944 F.... pulseaudio
   /dev/snd/controlC0:  leebc      1944 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Mon Jul 28 17:01:40 2014
  HibernationDevice: RESUME=UUID=fdb2dfff-b059-4b13-b905-540e8a48f5cf
  InstallationDate: Installed on 2014-05-07 (81 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  Lsusb:
   Bus 001 Device 002: ID 8087:8000 Intel Corp. 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: LENOVO 20300
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-32-generic.efi.signed root=UUID=ac49d226-f98b-44a1-9922-ae0432cf8c85 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-32-generic N/A
   linux-backports-modules-3.13.0-32-generic  N/A
   linux-firmware                             1.127.5
  SourcePackage: linux
  StagingDrivers: rts5139
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/23/2013
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 8BCN34WW(V3.01)
  dmi.board.asset.tag: No Asset Tag
  dmi.board.name: INVALID
  dmi.board.vendor: LENOVO
  dmi.board.version: 00000000INVALID
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Lenovo IdeaPad S310
  dmi.modalias: dmi:bvnLENOVO:bvr8BCN34WW(V3.01):bd12/23/2013:svnLENOVO:pn20300:pvrLenovoIdeaPadS310:rvnLENOVO:rnINVALID:rvr00000000INVALID:cvnLENOVO:ct10:cvrLenovoIdeaPadS310:
  dmi.product.name: 20300
  dmi.product.version: Lenovo IdeaPad S310
  dmi.sys.vendor: LENOVO

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