#1788 LIBMTP PANIC, samsung galaxy a5 2017 android 8.0

[Anonymous]

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)
LIBMTP PANIC: Could not open session! (Return code 8194)
Try to reset the device.
Unable to open raw device 0
OK.

Happens if I run mtp-detect 2 times. The first time everything is fine, the second time nothing works.

[Anonymous]

I've the same problem exactly the same issue with a Samsung Galaxy A6.

[Jorge Carvalho]

I confirm this Bug problem using libmtp (latest release) with a Samsung Galaxy A6.
The second time i try to open a PTP Session with the device, i get a PTP_RC_GeneralError:

LIBMTP ptp_usb_sendreq[1267]: REQUEST: 0x1002, Open session
LIBMTP ptp_write_func[1101]: USB OUT==>
        0000: 1000 0000 0100 0210 0000 0000 0100 0000   ................
LIBMTP ptp_usb_getresp[1599]: RESPONSE: LIBMTP ptp_read_func[868]: Remaining size to read: 0x0200 bytes
LIBMTP ptp_read_func[897]: Reading in 0x0200 bytes
LIBMTP ptp_read_func[906]: Result of read: 0x0000 (12 bytes)
LIBMTP ptp_read_func[915]: <==USB IN
        0000: 0c00 0000 0300 0220 0000 0000             ....... ....

Apparently the previous session is closed correctly.
I can open a new session after i reset the usb connection.

Any ideas?

Thank you.

[Jorge Carvalho]

Same beahvior with Samsung Galaxy S8+.
Could it be common to all Samsungs with Android Oreo?

Thank you.

[Anonymous]

Same problem with Samsung Galaxy S9+

[Anonymous]

Same problem Samsung Galaxy S7 and S8+. libmtp version: 1.1.13
Any help for us Samsung users?
Thanks!

[Stephen McCants]

Seeing this problem with a Galaxy S7 and S8+ on libmtp version: 1.1.13.
Willing to help if I can.

[Anonymous]

Still here for Galaxy J7 and libmtp 1.1.17

[Anonymous]

Still seeing the problem with libmpt 1.1.17 (KUbuntu 20.04LTS)

[Marcus Meissner]

i cant reproduce here with my sasmung S9 :/

Is the access dialog on the phone involved perhaps?
or perhaps another process is also accessign the device in parallel likle gvfs /( nautilus

[Anonymous]

Marcus, yes, I'm seeing the dialog pop up on my phone and pressing accept. Also Dolphin (KDE equivalent of Nautilus) is trying to access the phone.