https://bugs.kde.org/show_bug.cgi?id=371150
--- Comment #1 from bluelupo <i...@bluelupo.net> --- More Information: The error only occurs if the Miniprogramms activity monitoring is placed in the window bar or on the desktop background with more than one created activity. In this action, the screen becomes black and you can not get out of this state. In addition, it seems despite a "black screen" that the KDE desktop running in the background still, because after a few minutes of the "Black Sreen" the dialog box of the screen lock. If you do not touch the mini-program "Activity monitoring" you do not have problems with several created activities. -- You are receiving this mail because: You are watching all bug changes.