Created attachment 136234 [details] screenshot of the wrong character SUMMARY Point the mouse cursor to the characters when viewing a particular Unicode block. A detail box pops out to show the character under the mouse cursor. But it is the wrong character on my hidpi (2x) screen, and it's about half the distance between the mouse cursor and the origin porint (top-left corner). STEPS TO REPRODUCE 1. Use a hi-dpi (2x) screen setting. 2. Open a font with many characters in kfontview. For example, any of the Noto Sans CJK font family. 3. Select a Unicode block with many characters. 4. Point the mouse cursor to a character and see the popup detail box. OBSERVED RESULT The character in the detail box is the one approximately at the middle of the top-left corner and the cursor. See the attachment. The character in the orange circle is not the one under the cursor (in the blue circle). EXPECTED RESULT The character in the popup box should be the one under the cursor (the blue one). SOFTWARE/OS VERSIONS Linux/KDE Plasma: Arch Linux (available in About System) KDE Plasma Version: 5.21.1 KDE Frameworks 5.79.0 Qt 5.15.2 (built against 5.15.2) The xcb windowing system ADDITIONAL INFORMATION