Mtp device won't mount properly - but can be read (sometimes)

English Hardware
1

I have an Onyx Boox Tab Mini C e-reader which is supposed to mount as an mtp device. When I plug it in, it shows up on the Disks & Devices Widget. When I click on the option to open it in the file manager I receive the error message “Malformed URL mtp:udi=/org/kde/solid/udev/sys/devices/pci0000:00/0000:00:14.0/usb1/1-10/1-10.2/1-10.2.1/.” However, if I open dolphin itself and click on the device in the device list in the sidebar, I can access it perfectly - most of the time. Even so, when I click on it in the device widget, I still get the same error message.

This isn’t the only problem. Calibre, which I use to manage my ebook library will not recognize the device. But here is the kicker – if I simply open a session of Windows 10 in a VMWare virtual machine, while Calibre is open in OpenSuse, the virtual machine and OpenSuse will fight over possession of the device until - low and behold - is recognized by Calibre running in OpenSuse. I can then close the VMWare machine and Calibre will still have the device mounted and useable. I am betting this is related to the malformed URL error, but don’t know how to diagnose it.

2

Possibly reader uses USB 2.0, which may have some incompatibilities with USB 3.x.
Try to use USB 2.0 port on PC and USB type C - to - USB type A cable.

3

It is an intermittent sort of thing. I plugged it into a USB 2.0 port as you suggested and it worked properly. However, after I disconnected it and reconnected it did not work properly. It does seem like the computer sort of recognizes it. I can access it through Dolphin directly, where it shows up as a device in any USB port. However, when I try to access it through the device notifier, I get the error message I noted.