Problem with the task bar display.
Problem with the task bar display.
The issue I'm facing involves a small gray bar beneath each running application, such as Spotify, Firefox, and Settings. It appears at the top of my screen and becomes visible when I switch to full screen in Firefox. The bars prevent Firefox from displaying fully on top of the screen, which is why the wallpaper shows through. When I expand the taskbar and make it larger, the gray bars disappear, but the wallpaper remains visible. A screenshot captured earlier doesn't show this effect, possibly indicating a display setting problem. Other screens work normally. This behavior seems similar to what NVIDIA Control Panel displays, with a new bottom white line appearing.