Version: Latest OpenSuse Snapshot 4.0.99 (using Devel) Installed from: Compiled sources Just upgraded packages from 4.0.98 to 4.0.99 on OpenSuse and now the show desktop and show dashboard widgets don't work on the panel anymore. I am experiencing the following behaviour: When I drag the show desktop plasmoid from the list to the panel, the panel makes room for this plasmoid but I don't see any icon on the panel for the show desktop and I also can't click on it. But when I right click on it the menu gives me the choice to "remove the unknown applet". I hope someone can reproduce this.
you have an out of date package installed (most likely kdeplasmoids which was changed to kdeplasma-addons)