Proximity Sensor is an integrated feature in Dell laptops and mobile workstations. The sensor detects your presence when you are in front of your system and within the field-of-view (FOV) of the sensor. When you move out of the FOV of the sensor, the brightness of your system display reduces and locks your system based on the preferred lock time settings. When you walk in to the FOV of the sensor, the system display turns on and the login screen appears.
When Proximity Sensor is enabled, it can be accessed when the system is on or in modern standby (sleep) state, and when the system is in clamshell or tablet mode.
Walk Away Lock is suspended when:
Wake On Approach is suspended when: