Timeout 90 s after shutdown in kde

[st834]

After I end the desktop session, the computer does not turn off for a long time. The graphical environment is closed, but on tty a message appear, that a kill broadcast signal has been sent. I found from the logs that sddm.service gives such a timeout.

I can eliminate the timeout if I switch terminals. When the session closes, tty2 is active and it stands motionless for 1.5 minutes. If at this moment I switch to tty1, then the shutdown process will proceed without delay.

I described the symptoms hete and would be grateful if you could tell me what is the reason for such delay and how I can to fix it.

Thanks

[Irets]

Which init are you using?

[st834]

Thanks for your attention to this post.

I am using systemd.