Version: 4.3 (using KDE 4.3.0) OS: Linux Installed from: Debian testing/unstable Packages If you right click on a window or the desktop, the context menu prevents kde from locking the screen, for example by closing the laptop lid, or pressing the lock screen hotkey! My wireless mouse was on another table, and someone accidentally opened a context menu by pressing the right click button, and when i closed the laptop lid it did not lock the screen. For better security, it should lock anyway.
*** This bug has been marked as a duplicate of bug 78871 ***