I was trying to customize KDE's task manager, and then it crashed my machine. FYI I was also browsing around with the package manager at the time. After a hard reboot (I had no choice) I have the following symptoms:
- Alt+f4 doesn't close windows
- super/windows key doesn't open the launcher
- mouse over choices in context menus now makes the context menu disappear
- Yukuake won't launch (not eve from start menu)
- windows can't be resized
- can't choose which window stays on top by click on said window
- windows aren't listed in the task manager/task manager is blank/empty
- Alt+Tab doesn't work/is not assigned
- the titlebars of each the windows have disappeared (if we could leave this one broken for firefox but fix it for all other applications that would be great)
I never had these problems before this crash
I'm running Debian 9 stable with kde as my desktop environment