[kj76]

Hi,

I was having issues accessing my device under KDE with Calibre - I went through the debug device detection, then installed mtp-tools (since that was missing from a fresh Ubuntu install) and was running "mtp-detect" to see what the issue was. After a bit of Google searching I found:

There is a dbus-1 service here (for the most recent KDE5 versions) for the MTP daemon:
/usr/share/dbus-1/services/org.kde.kmtpd5.service

Older versions it might be: org.kde.kmtp.daemon.service

By creating a local file to prevent KDE's mtp daemon from working I did the following (older versions of KDE will be different):
mkdir -p ~/.local/share/dbus-1/services/
nano ~/.local/share/dbus-1/services/org.kde.kmtpd5.service

Add the following text:
[D-BUS Service]
Hidden=true
Name=org.kde.kmtpd5

And save the file - a logout or reboot will then disable the KDE MTP daemon.

Now "mtp-detect" works and so does Calibre