Created attachment 183935 [details] Black Square in any wallpaper Product: Plasma Workspace Component: KWin / Compositor / Wallpaper Rendering Version: 6.4.4 Severity: Normal (visual artifact) Operating System: Arch Linux x86_64 GPU: AMD Radeon 860M (integrated in AMD Ryzen 7 PRO 3500U) Kernel: 6.15.9-arch1-1 Mesa: 25.1.7 X Server Driver: xf86-video-amdgpu 23.0.0 Session Type: Both X11 and Wayland (issue occurs on both) Description: I experience a persistent, small square artifact overlay visible on the desktop wallpaper regardless of the wallpaper image or scaling method used. This issue appears immediately after login and remains through Plasma shell restarts. It affects all wallpapers and does not disappear when toggling the compositor, switching compositor backends (OpenGL 3.1, OpenGL 2.0, XRender), or changing session types (X11 vs Wayland). Steps to reproduce: Log in to Plasma 6.4.4 session (X11 or Wayland) on Arch Linux with AMD Radeon 860M GPU. Observe the desktop wallpaper. The small square artifact appears on the wallpaper and remains persistent. What I’ve tried: Restarting Plasma shell (kquitapp5 plasmashell && kstart5 plasmashell) Clearing Plasma caches (rm -rf ~/.cache/plasma*) Switching compositor backend between OpenGL 3.1, OpenGL 2.0, and XRender Toggling compositor on/off (Alt + Shift + F12) Changing wallpaper scaling mode and wallpaper plugin (Image, Slideshow) Testing on both X11 and Wayland sessions Confirmed AMDGPU kernel driver loaded and up-to-date Mesa stack Updating xf86-video-amdgpu, Mesa, and Linux firmware packages Expected behavior: No square or artifact overlay should appear on the desktop wallpaper regardless of wallpaper image or compositor settings. Actual behavior: A visible square artifact appears on the wallpaper immediately after login and persists through compositor toggling and Plasma shell restarts. Additional info: Kernel: 6.15.9-arch1-1 Plasma: 6.4.4 GPU driver: AMDGPU open source, Mesa 25.1.7 Hardware: ThinkPad P16s Gen 4, AMD Ryzen 7 PRO 3500U, Radeon 860M Arch Linux x86_64 up to date
can you run "xprop" and click on the square please attaching any output here
Created attachment 183957 [details] attachment-1903087-0.html Performing this action actually helped me discover the issue/fix. Apparently a "margins separator" made its way onto my wallpaper somehow. Sorry to waste your time, but thank you for the quick response! On August 11, 2025 10:18:26 AM CDT, David Edmundson <bugzilla_noreply@kde.org> wrote: >https://bugs.kde.org/show_bug.cgi?id=508089 > >David Edmundson <kde@davidedmundson.co.uk> changed: > > What |Removed |Added >---------------------------------------------------------------------------- > CC| |kde@davidedmundson.co.uk > Status|REPORTED |NEEDSINFO > Resolution|--- |WAITINGFORINFO > >--- Comment #1 from David Edmundson <kde@davidedmundson.co.uk> --- >can you run "xprop" and click on the square please attaching any output here > >-- >You are receiving this mail because: >You reported the bug. Nate Stewart
🐛🧹 ⚠️ This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information, then set the bug status to REPORTED. If there is no change for at least 30 days, it will be automatically closed as RESOLVED WORKSFORME. For more information about our bug triaging procedures, please read https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging. Thank you for helping us make KDE software even better for everyone!
🐛🧹 This bug has been in NEEDSINFO status with no change for at least 30 days. Closing as RESOLVED WORKSFORME.