Double Lock Screen

In case anyone else is finding that Fedora suddenly has a double-lock screen, with the second screen not accepting keyboard input (making it impossible to unlock): You might have both Gnome and Cinnamon installed. Try to look past the lack of professionalism in the bug report conversation (Because it’s not as if Linux users like to tinker and experiment with different software, right?) and get to the solution.

Bug 101940a5: cinnamon-screensaver causes unwanted screen locking when running GNOME

Description of problem:
If both the GNOME and Cinnamon desktops are installed, then while running GNOME, cinnamon-screensaver is running, and causes screen locking, even if it is turned off in GNOME. Sometimes it’s impossible to get focus in the Password window, and one can only bypass the lock by going to a VT and running “killall cinnamon-screensaver”.

Temporary fix suggested by leigh scott:

rm  /etc/xdg/autostart/cinnamon-screensaver.desktop

Updated Cinnamon packages fix the conflict.