Hello.
I have the same problem. Installed Mint 18 KDE. Fresh Install, running the updates
The screen locker is broken and unlocking is not possible anymore.
In order to unlock switch to a virtual terminal (e.g. Ctrl+Alt+F2),
log in and execute the command:
loginctl unlock-sessions
Afterwards switch back to the running session (Ctrl+Alt+F7).
Hello.
I have the same problem. Installed Mint 18 KDE. Fresh Install, running the updates
The screen locker is broken and unlocking is not possible anymore.
In order to unlock switch to a virtual terminal (e.g. Ctrl+Alt+F2),
log in and execute the command:
loginctl unlock-sessions
Afterwards switch back to the running session (Ctrl+Alt+F7).