You have been subscribed to a public bug:
Place yourself at the KDM login screen. Now press Ctrl+Alt+F2 to switch
to one of the console terminals. Login from the console and then
*logout* again. Now go back to KDM with Alt+F8. Select shutdown or
restart. KDM will warn you about an opened
Public bug reported:
Place yourself at the KDM login screen. Now press Ctrl+Alt+F2 to switch
to one of the console terminals. Login from the console and then
*logout* again. Now go back to KDM with Alt+F8. Select shutdown or
restart. KDM will warn you about an opened session in console F2 --
