I have a bit more info here. I have Ubuntu 14.04 (15.04 all the same) running on HP Envy m6 laptop + Android YotaPhone1 and have all listed problems with MTP/ADB here: the connection is unreliable (works 1 of 10 or does not work at all). None of the suggested solutions (using mtp tools or killing gvfs processes) helps.
Same phone connects just fine (MTP/ADB) on Windows 8 on same laptop and on some 2year-old OpenSUSE on another comp. What I have noted is that lsusb hangs (even when the phone and other devices are disconnected) for a couple of minutes before showing the result (mtp-detect also hangs rather than shows error), so it gave me an idea that this might be a hardware problem and I have made some tests. I take 2 laptops HP Envy m6 and Sony Vaio and 2 live CDs Ubuntu 14.04 (15.04 all the same results) and OpenSUSE 13.2 live with gnome. 1) HP Envy+Ubuntu 14.04 (15.04) - both live and installed: - lsusb hangs (shows result after few minutes) - MTP/ADB extremely unreliable 2) HP Envy+OpenSUSE 13.2 gnome live: - lsusb shows immediately - MTP works just fine (most likely ADB would work too, but it is not installed on live system) 3) Sony Vaio+Ubuntu 14.04 (15.04): - lsusb shows immediately - MTP works just fine So, I have one laptop where Ubuntu 14.04 (15.04)+MTP/ADB does NOT work and OpenSUSE 13.2+MTP DOES work and another laptop where Ubuntu 14.04 (15.04)+MTP DOES work. The MTP/ADB software problem 100% correlates with problem with lsusb. This is most likely (definitely) hardware+software combination problem. And this problem most likely not on GVFS/MTP layer, but on lower layer with lsusb/kernel. I will run more tests and make more investigations on my hardware, if someone points me further what I should do. Attach some system output from OpenSUSE 13.2 gnome live (MTP works): uname -a lsmod after connecting the phone: dmesg lsusb lsusb -t lsusb -v lsusb -D /dev/bus/usb/003/003 ** Attachment added: "Opensuse 13.2 output on hp envy m6" https://bugs.launchpad.net/ubuntu/+source/gvfs/+bug/1314556/+attachment/4453290/+files/OpenSUSE%2013.2%20on%20hp-envy-m6.txt -- 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 : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
