SUMMARY SDDM kcm correctly applies third-party themes to SDDM, but it always highlights Breeze theme on opening. Reproducible on both Arch Linux and Neon unstable edition. STEPS TO REPRODUCE 1. open SDDM kcm 2. install a third party theme via "Get new login screens..." button (I tested qogir, harmony v2, chili, sugar dark, sugar light) 3. apply the just installed third-party theme and close SDDM kcm 4. reopen SDDM kcm OBSERVED RESULT Breeze theme is highlighted instead of the previously applied third-party theme. EXPECTED RESULT SDDM kcm should always highlight the current theme. SOFTWARE/OS VERSIONS Operating System: Arch Linux KDE Plasma Version: 5.18 KDE Frameworks Version: 5.67.0 Qt Version: 5.14.1 Operating System: KDE neon Unstable Edition KDE Plasma Version: 5.18.80 KDE Frameworks Version: 5.68.0 Qt Version: 5.13.2
I can't read any stored setting, not just the theme. It's because the /etc/sddm.conf.d/kde_settings.conf file has the wrong permissions set. *** This bug has been marked as a duplicate of bug 414396 ***