Fedora rawhide "DimDisplay" what is that?

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http://forums.fedoraforum.org – I installed my last LiveCD FC19 from 20130708 in VirtualBox-4.2.16. Then I updated the system to FC20 - no errors. But if I log in to KDE-Desktop I become an error-output: "The profile AC has tried to activate "DimDisplay" wihich is not there." What does it mean? Is this a feature from rawhide or from KDE? How can I end this output? Then I want to reboot, but one Service stops for a wihle: "A stop job is running for session-1.scope" or "A stop job is running for session-5.scope" How can I stop the stop job? ManfredB (HowTos)