I was in the need to change System Unattended Sleep Timeout.
It’s the time the system shall wait before switching the sleep mode when it’s into a login or locked page.
According to this thread, it is something we can do by the Advanced Power Options.
The problem is that it’s hidden by default.
Enabling System Unattended Sleep Timeout
To switch it back to the light, we have to:
- go into this registry key:
Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power\PowerSettings\238C9FA8-0AAD-41ED-83F4-97BE242C8F20\7bc4a2f9-d8fc-4469-b07b-33eb785aaca0
- set Attributes to 0x00000002
- restart Power Advanced Options window, and set it up.
Enabling System Unattended Display Off Timeout
According to this other thread, There is also a similar hidden setting to set the ‘unattended display off timeout‘.
To switch it back to the light, we have to:
- go into this registry key:
Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power\PowerSettings\7516b95f-f776-4464-8c53-06167f40cc99\8EC4B3A5-6868-48c2-BE75-4F3044BE88A7
- set Attributes to 0x00000002
- restart Advanced Power Options window, and set it up under ‘Display‘ branch.