Fedora rawhide "DimDisplay" what is that?

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