The log has that error at 08:06:01, do you remember if that's the time where you saw the problem?
gvfsd[2501]: PTP_ERROR_IO: failed to open session, trying again after resetting USB interface gvfsd[2501]: LIBMTP libusb: Attempt to reset device kernel: usb 2-4: USB disconnect, device number 6 gvfsd[2501]: inep: usb_get_endpoint_status(): No such device gvfsd[2501]: outep: usb_get_endpoint_status(): No such device gvfsd[2501]: libusb_open() failed!: No such file or directory gvfsd[2501]: LIBMTP PANIC: Could not init USB on second attempt The log suggest that the lower level stack kernel/libmtp acted like if the device vanished and got plugged again. Are you confident the cable doesn't have a loose connection? Does copying from the same device/cable works fine from other computer (or ideally from the same computer on another OS)? -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to nautilus in Ubuntu. https://bugs.launchpad.net/bugs/1813429 Title: Attempting to copy music (m4a) files from laptop to external device (LG G7 phone connected via usb cable) via mass copy-paste of a list of directories. Randomly, copy/paste will stop and error reported. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nautilus/+bug/1813429/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
