table and look for the values associated with the following keys:
One thing to keep in mind on Linux is you will need to consider not only the distribution (eg. ubuntu) but also the primary window manager (eg. gnome). If someone is not running Gnome, the keys listed above will not be representative of the effective configuration on the device.
'ubuntu-lock-on-suspend' 'lock-enabled' 'lock-delay' 'idle-delay'