Recent sleep/screensaver wake up and quit. Specifically, in the 10.8.x system, if you have set a wake-up request, enter a password. When the screen saver or sleep call is enabled, the system should pop up a logon window to allow users to log on, however, some machines may crash inexplicably.
Currently, this problem only occurs in the following scenarios:
Camera RAW 5 .. 0.1 or 5.0.2 is installed, and/or "Show Input menu in login window" is enabled.
Solution: downgrade to Camera RAW 4.x or disable "Show Input menu in login window".
The "Show Input menu in login window" option can be completed using the following command:
Defaults write com. apple. showInputMenu-bool Falsedefaults write/Library/Preferences/com. apple. showInputMenu-bool False
Ref: http://macmule.com/2013/12/20/beachball-when-coming-out-of-sleep-or-when-deactivating-the-screen-saver/