https://bugs.kde.org/show_bug.cgi?id=375257
--- Comment #10 from Mike E. <melkevi...@gmail.com> --- Well, I'm obviously not an expert so I can't say whether or not that particular issue is the same as this, but after reading your post and looking at that bug, I did a little more testing. I found that if I set the window behavior focus policy to "Focus Under Mouse" or "Focus Strictly Under Mouse", when I move the mouse to the top edge of the screen, it raises the VirtualBox mini toolbar like it should and the mouse cursor changes to the host's cursor theme (again like it should, and like it always does with my usually setting of "Click To Focus"). Then if I click on one of the menu items, the guest's screen goes dim (Dim Inactive desktop effect is turned on for the host), the VirtualBox mini toolbar disappears, the mouse cursor theme changes back to the guest's theme (because the mouse is now over the guest's window), and lastly, but most curiously, the host's desktop panels are displayed. The desktop wallpaper is not displayed, just the panels. This lasts for as long as the time set by the "Delay focus by" setting, and then the VirtualBox guest (which the mouse is now over) regains focus and the window brightens. So it does appear that this is related to the window focusing. Hope this gives some more clues to help someone get to the bottom of it. Thanks, Mike E. -- You are receiving this mail because: You are watching all bug changes.