Automatic lock screen does not work in EL Capitan I have my preferences set so the screen locks 1 minute after sleep or after the screensaver goes up.  This used to work until I upgraded to El Cap.  Now no matter how long after the screensaver has gone up I never get asked my password, the lock screen just does not happen.  Any idea why?
I can report the problem seems to have resolved 'naturally' after a reboot.  It is unclear why though.