The modern desktops seem to have some way to jam themselves if the lock screen fails. For example, KDE: https://preview.redd.it/plasma-lock-screen-messed-up-v0

The modern desktops seem to have some way to jam themselves if the lock screen fails. For example, KDE: https://preview.redd.it/plasma-lock-screen-messed-up-v0-zx7hibtnq2af1.jpg?width=4000&format=pjpg&auto=webp&s=dab622fb31e378871f9c1dae379783f617eba46b https://preview.redd.it/plasma-lock-screen-messed-up-v0-zx7h... GNOME: https://forums.freebsd.org/attachments/index-jpeg.8571/ https://forums.freebsd.org/attachments/index-jpeg.8571/ I think this only works because there is top-down integration between the different parts. The compositor knows when it's supposed to be locked. Whereas the old screen lockers were just very aggressive Xorg apps that suffer from "What if two programs did this?" problems (https://devblogs.microsoft.com/oldnewthing/20110310-00/?p=11253 https://devblogs.microsoft.com/oldnewthing/20110310-00/?p=11...)