I just have a fresh install of Kubuntu 20.04 on an Acer Swift 3 laptop. I ran into problem with transferring files from my Android phone. Here was the steps I went through:
- Plug the phone into USB port. The device shows up on Kubuntu (Dolphin and popup notification)
- Unlock the phone and accept permission.
- Click on the device and got the following error:
No storage media found. Make sure your device is unlocked and has MTP enabled in its USB connection settings.
When I run mtp-detect, I got the following error:
$ mtp-detect libmtp version: 1.1.17 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 3, dev 11 Attempting to connect device(s) error returned by libusb_claim_interface() = -6LIBMTP PANIC: Unable to initialize device Unable to open raw device 0 OK.
( 1799.438225) usb 3-1: new high-speed USB device number 16 using xhci_hcd ( 1799.593572) usb 3-1: New USB device found, idVendor=04e8, idProduct=6860, bcdDevice= c.00 ( 1799.593575) usb 3-1: New USB device strings: Mfr=7, Product=8, SerialNumber=9 ( 1799.593576) usb 3-1: Product: SAMSUNG_Android ( 1799.593577) usb 3-1: Manufacturer: SAMSUNG ( 1799.593578) usb 3-1: SerialNumber: 27a0c9216c1c7ece ( 1799.603905) cdc_acm 3-1:1.1: ttyACM0: USB ACM device
$ lsusb Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 003 Device 003: ID 1c7a:0575 LighTuning Technology Inc. EgisTec EH575 Bus 003 Device 002: ID 0408:a094 Quanta Computer, Inc. HD User Facing Bus 003 Device 004: ID 8087:0026 Intel Corp. Bus 003 Device 016: ID 04e8:6860 Samsung Electronics Co., Ltd Galaxy series, misc. (MTP mode) Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
But something is really strange. It works if I do the following:
- Plug the phone into laptop.
- Boot the laptop.
- Once Kubuntu loaded, run $ mtp-detect. This time mtp-detect no longer reports any error.
- Access the phone device via Dolphin works now.
Then MTP file transfer will work, until the phone is unplugged. Replugging the phone in will not work anymore.
I really have no idea what is going on. Any help is much appreciated.