For me, the fix was to use a USB port on the back of my machine direclty on the mother board.
-- 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) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gvfs/+bug/1314556/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp