Same problem. Intermittent, but for the last few days doesn't work. I have attached the output of numerous cli commands to help troubleshooting. When I choose PTP mode instead of MTP mode Shotwell fires up and can receive photos and videos.
One thought is that USB cables are notorious for wearing out on Android mobile phones. I have had problems because the high charging currents and cheap cables don't work well together. When new the connectors fit up well but as time goes by they get looser and looser. Unfortunately cheap cables are what are commonly available. ** Attachment added: "trouble shooting command results" https://bugs.launchpad.net/ubuntu/+source/gvfs/+bug/1314556/+attachment/4793053/+files/usb_mtp.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1314556 Title: Unable to mount Android MTP device To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gvfs/+bug/1314556/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs