Created attachment 177800 [details] Font Management with bad font rendering in preview panel *** If you're not sure this is actually a bug, instead post about it at https://discuss.kde.org If you're reporting a crash, attach a backtrace with debug symbols; see https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports Please remove this comment after reading and before submitting - thanks! *** SUMMARY STEPS TO REPRODUCE 1. Use Plasma Wayland session, 150% scale in System Settings > Display & Monitor 2. Open System Settings > Text & Fonts > Font Management and select any font 3. OBSERVED RESULT The font rendering in the preview panel on the right is atrocious (no antialiasing, hinting broken), while the other fonts in the app render correctly; see attached screenshot. EXPECTED RESULT Fonts are rendered correctly with antialiasing and correct hinting. SOFTWARE/OS VERSIONS KDE Plasma Version: 6.2.5 KDE Frameworks Version: 6.10.0 Qt Version: 6.8.1 ADDITIONAL INFORMATION
Can reproduce.
*** Bug 501975 has been marked as a duplicate of this bug. ***
This issue is not limited to the Font Management KCM — it also affects other software, applications, and browsers. Assuming it's only related to the Font KCM creates a false impression that the problem is minor and can be postponed. In reality, it's a broader and more important issue that deserves timely attention.
(In reply to Alex J Green from comment #3) > This issue is not limited to the Font Management KCM — it also affects other > software, applications, and browsers. Assuming it's only related to the Font > KCM creates a false impression that the problem is minor and can be > postponed. In reality, it's a broader and more important issue that deserves > timely attention. Indeed, there are several "old" KDE applications (examples: KolourPaint, KPatience) whose rendering seem to be broken as well with similar symptoms. Maybe the issue is not related to font rendering itself, but a more general bitmap scaling issue when fractional scaling is enabled.