Information handling system with consolidated external user presence detection

1. An information handling system comprising:

a host device including a processor; and

a plurality of monitor devices to communicate with the processor of the host device, each of the monitor devices including a different presence detect sensor, one of the monitor devices to be configured as a parent monitor device;

the parent monitor device to:

based on a consolidated current user presence detect (UPD) status from all of the monitor devices and based on a UPD policy, set a current user status as either a user absence or a user presence; and

in response to the processor being in a low power state and the current user status being the user presence, provide a wake notification to the host device.

2. The information handling system of claim 1 , in response to the processor being in a low power state and the current user status is the user absence, provide a low power idle command to the child monitor devices.

3. The information handling system of claim 1 , in response to the processor being in a run power state and the current user status is the user absence, provide a user absence notification to the processor.

4. The information handling system of claim 1 , in response to the wake notification, the processor to perform a wake process, and to initiate a login operation.

5. The information handling system of claim 1 , when the UPD policy indicates a low security level, the parent device to set the current user status as user presence based on at least one of the monitor devices detects a user.

6. The information handling system of claim 1 , when the UPD policy indicates a medium security, the parent device to set the current user status as user presence based on any two of the monitor devices detect a user.

7. The information handling system of claim 1 , wherein communication between successive monitor devices and communication between one or the monitor devices and the host device is via a universal serial bus (USB) communication.

8. The information handling system of claim 1 , wherein the monitor devices are connected in a daisy chain configuration.

9. A method comprising:

setting, by a processor of a host device, one of a plurality of monitor devices as a parent monitor device;

based on a consolidated current user presence detect (UPD) status from all of the monitor devices and based on a UPD policy, setting, by the parent monitor device, a current user status as either a user absence or a user presence; and

in response to the processor being in a low power state and the current user status being the user presence, providing a wake notification to the host device.

10. The method of claim 9 , further comprising:

in response to the processor being in a low power state and the current user status is the user absence, providing a low power idle command to the child monitor devices.

11. The method of claim 9 , further comprising:

in response to the processor being in a run power state and the current user status is the user absence, providing a user absence notification to the processor.

12. The method of claim 9 , further comprising:

in response to the wake notification:

performing, by the processor, a wake process; and

initiating a login operation.

13. The method of claim 9 , when the UPD policy indicates a low security level, the parent device to set the current user status as user presence based on at least one of the monitor devices detects a user.

14. The method of claim 9 , when the UPD policy indicates a medium security, the parent device to set the current user status as user presence based on any two of the monitor devices detect a user.

15. The method of claim 9 , wherein communication between successive monitor devices and communication between one or the monitor devices and the host device is via a universal serial bus (USB) communication.

16. The method of claim 9 , wherein the monitor devices are connected in a daisy chain configuration.

17. A non-transitory computer-readable medium including code that when executed performs a method, the method comprising:

setting, by a processor of a host device, one of a plurality of monitor devices as a parent monitor device;

based on a consolidated current user presence detect (UPD) status from all of the monitor devices and based on a UPD policy, setting, by the parent monitor device, a current user status as either a user absence or a user presence; and

in response to the processor being in a low power state and the current user status being the user presence, providing a wake notification to the host device.

18. The non-transitory computer-readable medium of claim 17 , wherein the method further comprises:

in response to the processor being in a low power state and the current user status is the user absence, providing a low power idle command to the child monitor devices.

19. The non-transitory computer-readable medium of claim 17 , wherein when policy indicates a medium security, the method further comprises:

setting the current user status as user presence based on any two of the monitor devices detect a user.

20. The non-transitory computer-readable medium of claim 17 , wherein communication between successive monitor devices and communication between one or the monitor devices and the host device is via a universal serial bus (USB) communication.