Version: (using KDE 4.2.85) Installed from: Unlisted Binary Package In kde 4.2.87, window shading is broken. The window decoration are correctly updated, but the windows content is still visible. moving the window, switching desktop or moving a window over the 'mis-shaded' one makes it update. Some weird behavior with focus occurs as side effects i guess.
*** This bug has been marked as a duplicate of bug 193808 ***