I'm having the same issue - unable to mount my Android phone because it gets disconnected immediately:
Nov 14 19:08:36 gooseberry kernel: [94970.949576] usb 1-1.3: new high-speed USB device number 56 using ehci-pci Nov 14 19:08:36 gooseberry kernel: [94971.042204] usb 1-1.3: New USB device found, idVendor=04e8, idProduct=6860 Nov 14 19:08:36 gooseberry kernel: [94971.042210] usb 1-1.3: New USB device strings: Mfr=2, Product=3, SerialNumber=4 Nov 14 19:08:36 gooseberry kernel: [94971.042213] usb 1-1.3: Product: Android Nov 14 19:08:36 gooseberry kernel: [94971.042215] usb 1-1.3: Manufacturer: Android Nov 14 19:08:36 gooseberry kernel: [94971.042217] usb 1-1.3: SerialNumber: 00193bfe6f686e Nov 14 19:08:36 gooseberry kernel: [94971.097927] usb 1-1.3: USB disconnect, device number 56 ** Changed in: linux (Ubuntu) Status: Expired => New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1077461 Title: USB MTP device disconnected automatically To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1077461/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs