Debian/Bullseye plasma screen doesn't lock
Since mid-August, my screen doesn't lock automatically after 10 minutes
(as I specified in the power management settings). I've tried rebooting
and resetting the power management setting but it's still not locking.
This has survived several updates to the window management software.
I'm running Debian/Bullseye on an AMD64 system.
Any suggestions on how to fix this?