SUMMARY Every time I start kdeconnect (processes kdeconnectd, kdeconnect-notifier) on system boot, I get a warning printed to syslog. STEPS TO REPRODUCE 1. Install kdeconnect 2. start deamon or restart computer and log in to GNOME/wayland session 3. have a look at syslog OBSERVED RESULT This warning is printed several times at boot: > QSocketNotifier: Can only be used with threads started with QThread EXPECTED RESULT No warnings. SOFTWARE/OS VERSIONS kdeconnectd 1.3.5-1.fc31.x86_64 qt5-qtbase 5.13.2-2.fc31.x86_64 kf5-* 5.67.0-1.fc31.x86_64 glibc 2.30-10.fc31.x86_64 ADDITIONAL INFORMATION I guess this issue is related to the fact that I'm running kdeconnect on a GNOME/Wayland session which does not natively provide a system tray for tray icons.