Strange behavior in sddm manager

hi, I have discovered a very strange behavior of my KDE desktop.

First, I can’t log in after a log-out. (Plasma does not start)

Second: the screen does not turn off after a time I specify in the power settings.

after trying this out i get that information in terminal

org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds not supported"
org.kde.powerdevil: org.kde.powerdevil.backlighthelper.brightness failed
org.kde.powerdevil: Handle button events action could not check for screen configuration
org.kde.powerdevil: The profile  "AC" tried to activate "DimDisplay" a non-existent action. This is usually due to an installation problem, a configuration problem, or because the action is not supported
org.kde.powerdevil: org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge thresholds not supported"

Someone able to help me?

looks like it is working now
still magic :joy:

I hope you left cookies out for the SDDM fairy when she came and dusted.

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