| Summary: | One-pixel rendering artifacts in high DPI XWayland applications with "Apply scaling themselves" | ||
|---|---|---|---|
| Product: | [Plasma] kwin | Reporter: | dantmnf <dantmnf2+kdebugs> |
| Component: | wayland-generic | Assignee: | KWin default assignee <kwin-bugs-null> |
| Status: | RESOLVED FIXED | ||
| Severity: | normal | CC: | kde, nate |
| Priority: | NOR | ||
| Version First Reported In: | 6.1.2 | ||
| Target Milestone: | --- | ||
| Platform: | Arch Linux | ||
| OS: | Linux | ||
| Latest Commit: | Version Fixed In: | 6.4.5 | |
| Sentry Crash Report: | |||
| Attachments: | rendering artifacts in xterm | ||
Can you confirm if this is still an issue on Plasma 6.2? edit, reproduced No longer reproducible with Plasma 6.4.5 and XWayland 24.1.8 Great! |
Created attachment 171557 [details] rendering artifacts in xterm SUMMARY When screen scale factor is larger than 100% and X11 scaling option is set to "Apply scaling themselves", one-pixel rendering artifacts can be observed in XWayland applications. Mostly noticeable in raw X11 applications that take use of something like "partial redraw" (e.g. xterm and LibreOffice with `SAL_USE_VCLPLUGIN=gen`) STEPS TO REPRODUCE 1. Set screen scale factor to 200% and X11 scaling option to "Apply scaling themselves" 2. Open xterm 3. Move mouse around menu items in xterm OBSERVED RESULT One-pixel lines on the edge of redraw areas. EXPECTED RESULT No rendering artifacts. SOFTWARE/OS VERSIONS Linux/KDE Plasma: Arch Linux (available in About System) KDE Plasma Version: 6.1.2 KDE Frameworks Version: 6.3.0 Qt Version: 6.7.2 ADDITIONAL INFORMATION OpenGL ES profile renderer: AMD Radeon Graphics (radeonsi, rembrandt, LLVM 18.1.8, DRM 3.57, 6.9.8-arch1-1) OpenGL ES profile version: OpenGL ES 3.2 Mesa 24.1.3-arch1.1 Also reproducible in earlier versions.