#1790 Cannot copy files from Motorola XT1524 and libmtp 1.1.13 on Ubuntu 18.04

[Journeyman]

hello,

before opening a bug on the ubuntu package, I'd like to investigate the probleme the source.

When I connect a Motorola XT1524, it's correctly recognized, but file transfer behaves erratically.

Sometimes files are transferred from the device to the PC, most of the times not.

I only receive this error:

libmtp error: Could not get file from device

Is there a way to see more detail so I can provide more debug log?

Ubuntu 18.04 ships with libmtp 1.1.13. I've also manually compiled libmtp 1.1.15 and with both version I have the same errors on mtp-connect and mpt-detect (not sure if related):

$ /usr/local/bin/mtp-detect
libmtp version: 1.1.15

Listing raw device(s)
Device 0 (VID=22b8 and PID=002e) is a Motorola XT1524 (MTP).
Found 1 device(s):
Motorola: XT1524 (MTP) (22b8:002e) @ bus 1, dev 7
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
ignoring libusb_claim_interface() = -6LIBMTP PANIC: failed to open session on second attempt
Unable to open raw device 0
OK.

$ /usr/local/bin/mtp-connect
libmtp version: 1.1.15

Device 0 (VID=22b8 and PID=002e) is a Motorola XT1524 (MTP).
ignoring libusb_claim_interface() = -6PTP_ERROR_IO: failed to open session, trying again after resetting USB interface
LIBMTP libusb: Attempt to reset device
ignoring libusb_claim_interface() = -6LIBMTP PANIC: failed to open session on second attempt
No devices.

Is there a way I can provide more feedback? What can it be the problem?

thanks