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[Giyomunice <giyomunice@xxxxxxxxx>]

Hi, This bug also affects me on ubuntu 14.04, whether I am on USB debugging mode or not on my Xperia M2.
The phone detects the PC connection and tells me it is connected in MTP mode.
However nothing happens on the computer. When I try mtp-detect : 
Unable to open ~/.mtpz-data for reading, MTPZ disabled.libmtp version: 1.1.6

Listing raw device(s)
   No raw devices found.

I don’t understand why it does not even see the device…

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Packages, which is subscribed to gvfs in Ubuntu.
https://bugs.launchpad.net/bugs/1314556

Title:
  Unable to mount Android MTP device

Status in “gvfs” package in Ubuntu:
  Confirmed

Bug description:
  I have the same problem on 3 computers with 14.04:

  So I tried,
   mtp-detect 
  Unable to open ~/.mtpz-data for reading, MTPZ disabled.libmtp version: 1.1.6

  Listing raw device(s)
  Device 0 (VID=04e8 and PID=6860) is a Samsung Galaxy models (MTP).
     Found 1 device(s):
     Samsung: Galaxy models (MTP) (04e8:6860) @ bus 1, dev 10
  Attempting to connect device(s)
  ignoring libusb_claim_interface() = -6PTP_ERROR_IO: failed to open session, trying again after resetting USB interface
  LIBMTP libusb: Attempt to reset device
  inep: usb_get_endpoint_status(): Resource temporarily unavailable
  outep: usb_get_endpoint_status(): Device or resource busy
  ignoring libusb_claim_interface() = -6LIBMTP PANIC: failed to open session on second attempt
  Unable to open raw device 0
  OK.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: gvfs-backends 1.20.1-1ubuntu1
  ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
  Uname: Linux 3.13.0-24-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.14.1-0ubuntu3
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Wed Apr 30 11:18:12 2014
  EcryptfsInUse: Yes
  ExecutablePath: /usr/lib/gvfs/gvfs-mtp-volume-monitor
  InstallationDate: Installed on 2013-02-12 (441 days ago)
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
  ProcEnviron:
   XDG_RUNTIME_DIR=<set>
   SHELL=/bin/bash
   LANGUAGE=en_US
   PATH=(custom, user)
   LANG=en_US.UTF-8
  SourcePackage: gvfs
  UpgradeStatus: Upgraded to trusty on 2014-04-02 (27 days ago)

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