SUMMARY STEPS TO REPRODUCE 1. Run KCalc 2. 3. OBSERVED RESULT KCalc opens in Simple mode with no way to change to Science or other modes. EXPECTED RESULT KCalc should have a menu bar: File, Edit, Constants, Settings, Help. Failing that, the menu invoked via "Ctrl+Shift+," should enable mode changing. SOFTWARE/OS VERSIONS Linux/KDE Plasma: EndeavourOS KDE Plasma Version: 6.2.0 KDE Frameworks Version: 6.6.0 Qt Version: 6.7.3 ADDITIONAL INFORMATION Following the advice of an old reddit thread*, I went into Background Services and disabled Application menus daemon. I logged out and back in and the menu appeared. If I re-enable the daemon and re-log, the menu vanishes again. I have no idea what this daemon does or what other effects disabling it will have, if any. But the Background Services menu says to submit a bug if I'm disabling something to work around an issue, so... * https://www.reddit.com/r/kde/comments/k7s46w/kcalc_question/
The daemon exports apps' menus to a Global Menu widget. Presumably you must have had one such widget at some point in the past, or still do invisibly, due to some bug. What does `grep global ~/.config/plasma-org.kde.plasma.desktop-appletsrc` say?
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(In reply to Nate Graham from comment #1) > The daemon exports apps' menus to a Global Menu widget. Presumably you must > have had one such widget at some point in the past, or still do invisibly, > due to some bug. > > What does `grep global ~/.config/plasma-org.kde.plasma.desktop-appletsrc` > say? global=Alt+F1