Стратую, он что-то пердит и всё.
$ /usr/libexec/kdeconnectd
kf.i18n: Loading the "qt_" catalog failed for locale QLocale(English, Latin, United States)
kf.i18n: Loading the "qt_" catalog failed for locale QLocale(English, Latin, United States)
kf.i18n: Loading the "qtbase_" catalog failed for locale QLocale(English, Latin, United States)
kf.i18n: Loading the "qtscript_" catalog failed for locale QLocale(English, Latin, United States)
kf.i18n: Loading the "qtmultimedia_" catalog failed for locale QLocale(English, Latin, United States)
kf.i18n: Loading the "qtxmlpatterns_" catalog failed for locale QLocale(English, Latin, United States)
kf.crash: Could not find drkonqi in search paths: ("/usr/libexec", "/usr/lib64/qt5/libexec", "/usr/libexec")
kdeconnect.core: Daemon starting
kdeconnect.core: Certificate from "/home/me/.config/kdeconnect/certificate.pem" is not valid
kdeconnect.core: Generating certificate
kdeconnect.core: My id: "_9363d394_931e_4ac2_8704_2ba92b0ebbf7_"
Unknown signature value: 0
kdeconnect.daemon: "KDE Connect" : "Could not store certificate file: /home/me/.config/kdeconnect/certificate.pem"
kdeconnect.core: LanLinkProvider started
kdeconnect.core: Daemon started
kf.notifications: Calling notify on "Popup"
kf.notifications: Calling notify on "Sound"
kdeconnect.core: Broadcasting identity packet
Segmentation fault (core dumped)
Попинайте в какую-нибудь сторону, застрял.
UPD ================================
После чистки кеша в хомяке только Segmentation fault
$ /usr/libexec/kdeconnectd
Segmentation fault (core dumped)