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[hackel <1314556@xxxxxxxxxxxxxxxxxx>]

I also get this message all the time with my Nexus 5.  Typically, I get
the "Unable to mount Android MTP device" error message popping up on my
screen when I plug in my phone, but *not* always.  Since I plug/unplug
my phone very often, I typically get 4-5 of these messages hidden behind
windows that I have to clear throughout the day.  I haven't been able to
isolate the cause, but for example right at this moment, I am unable to
reproduce it, even though I just had to clear away a stale error
message.

I should also add that it works perfectly with ADB, which is what I
normally use to transfer files, but I can also turn on MTP.  Whenever
the phone is plugged-in, it defaults to charging-only mode.  I still do
get an icon for it, but clicking on it just shows an empty mtp://
folder.  I'm able to "mount"/unmount this device, but the folder stays
empty—not sure that anything is really happening.  If I turn on "Use USB
for File transfers" on my device, then the "Internal Storage" icon
appears inside the mtp:// folder and I can browse files normally.

I just want to isolate / eliminate all the useless error messages.  Not
sure if this should be split out into a separate bug, since a lot of
people seem to be complaining about lack of MTP functionality entirely.

-- 
You received this bug notification because you are a member of Desktop
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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