Screen Edges

[Peter Gueckel]

A strange thing happened.

I opened libreoffice and plasma crashed. This is a regular occurrence 
since about 10 days that I had hoped would disappear with the arrival 
of kde-4.11.1, but it didn't. I closed libreoffice and tried to 
switch to another virtual desktop, when I noticed that screen edges 
no longer work.

I just updated the system and a new kde-workspaces came, so I thought 
this just might be the fix, so I didn't worry about it. I restarted 
(not off and boot) the computer, expecting everything to be fine. It 
isn't.

I checked systemsettings and the edges are set to active windows and 
desktop grid, but they are shown greyed out, so I thought that 
somehow these effects must have become disabled. They didn't. They 
are shown as enabled.

I logged out and back in. Still the same.

Ideas?