Bug 513461

SUMMARY
Every 30s, kdeconnectd logs this to the system log, from `journalctl -b`:

Dec 17 00:20:03 hostname kdeconnectd[2707]: Cannot find Bluez 5 adapter for device search false
Dec 17 00:20:33 hostname kdeconnectd[2707]: Cannot find Bluez 5 adapter for device search false
Dec 17 00:21:03 hostname kdeconnectd[2707]: Cannot find Bluez 5 adapter for device search false
Dec 17 00:21:33 hostname kdeconnectd[2707]: Cannot find Bluez 5 adapter for device search false

This started happening after Fedora 43 upgraded to KDE Gear 25.12.0 + KDE Plasma 6.5.4 + KDE Frameworks 6.21 in https://bodhi.fedoraproject.org/updates/FEDORA-2025-e2d6cf1cf4. The system is a desktop without any Bluetooth adapters.

These are the log entries for kdeconnectd leading up to the logspam:

Dec 16 23:54:03 hostname kdeconnectd[2707]: Cannot find a compatible running Bluez. Please check the Bluez installation. QtBluetooth requires at least BlueZ version 5.
Dec 16 23:54:03 hostname kdeconnectd[2707]: No local bluetooth adapter found
Dec 16 23:54:03 hostname kdeconnectd[2707]: No Primary Battery detected on this system. This may be a bug.
Dec 16 23:54:03 hostname kdeconnectd[2707]: Total quantity of batteries found:  0
Dec 16 23:54:03 hostname kdeconnectd[2707]: Primary Battery seems to have been removed. Suspending packets until it is reconnected.
Dec 16 23:54:03 hostname kdeconnectd[2707]: No object for name "alsa_output.pci-0000_09_00.6.analog-stereo.monitor"
Dec 16 23:54:04 hostname kdeconnectd[2863]: QThreadStorage: entry 2 destroyed before end of thread 0x55c8852620b0
Dec 16 23:54:04 hostname kdeconnectd[2863]: QThreadStorage: entry 1 destroyed before end of thread 0x55c8852620b0
Dec 16 23:54:04 hostname kdeconnectd[2707]: Failed to register with host portal QDBusError("org.freedesktop.portal.Error.Failed", "Could not register app ID: Connection already associated with an application ID")
Dec 16 23:54:33 hostname kdeconnectd[2707]: Missing CAP_NET_ADMIN permission. Cannot determine whether a found address is of random or public type.
Dec 16 23:54:33 hostname kdeconnectd[2707]: Cannot find Bluez 5 adapter for device search false

The first line on "Cannot find a compatible running Bluez" seems to have always been there, the relevant packages are installed:

bluedevil-6.5.4-1.fc43.x86_64
bluez-5.85-1.fc43.x86_64
bluez-libs-5.85-1.fc43.x86_64
bluez-obexd-5.85-1.fc43.x86_64
bluez-cups-5.85-1.fc43.x86_64
bluez-libs-5.85-1.fc43.i686
kf5-bluez-qt-5.116.0-4.fc43.x86_64
kf6-bluez-qt-6.21.0-1.fc43.x86_64

STEPS TO REPRODUCE
1. Log in to a KDE session with kdeconnectd installed.
2. Run `journalctl -b`.
3. 

OBSERVED RESULT
Logspam every 30s as shown above.

EXPECTED RESULT
No logspam.

SOFTWARE/OS VERSIONS
Linux: Fedora 43
KDE Plasma Version: 6.5.4
KDE Frameworks Version: 6.21.0
Qt Version: 6.10.1

ADDITIONAL INFORMATION
Workaround is to disable the Bluetooth backend in kdeconnectd then the logspam stops but this has to be done for every user.
A similar bug was raised in https://bugs.kde.org/show_bug.cgi?id=417421 but that log entry ends in "device search true" instead.