CIM to Get/Set computer Sleep settings

PowerShell Help
1

To change the power settings on a remote computer to never sleep I run the below commands. I would like to be able to Get and Set the standby timeout and hibernate timeout values. I decided to dig into the CIM namespace ROOT\cimv2\power. I’m not having any luck with finding a solution to using CIM to Get and Set these values. The reason I want to report (Get) the standby and hibernate values is so I know if I have to Set them or not.

Is there a CIM way to do the below and also report on the settings?

Invoke-Command -ComputerName $ComputerName -ScriptBlock {C:\Windows\system32\powercfg.exe -change -standby-timeout-ac 0}
Invoke-Command -ComputerName $ComputerName -ScriptBlock {C:\Windows\system32\powercfg.exe -change -hibernate-timeout-ac 0}
2

I’d thought you could only deal with Power Plans (Use PowerShell and WMI or CIM to View and to Set Power Plans - Scripting Blog), not individual settings. Microsoft kind of made a push for not managing individual settings, but instead bundling them into Plans. That’s how the GUI deals with them.

3

I remember digging into this when I wrote PowerShell and WMI and you have to work at the plan level

4

I read that scripting guy article. I see how you can change the power plan. So I would want to change the power plan to high performance to achieve the same result? Except it would be whatever custom settings are configured behind those plans, right.

5

You can narrow it down a bit like this using aliases:

powercfg /query sub_balanced sub_sleep standbyidle
powercfg /query sub_balanced sub_sleep hibernateidle

There might be a powershell module that just runs powercfg.

6

scheme_balanced not sub_balanced

C:\>powercfg /query scheme_balanced sub_sleep standbyidle
Power Scheme GUID: 381b4222-f694-41f0-9685-ff5bb260df2e  (Balanced)
  GUID Alias: SCHEME_BALANCED
  Subgroup GUID: 238c9fa8-0aad-41ed-83f4-97be242c8f20  (Sleep)
    GUID Alias: SUB_SLEEP
    Power Setting GUID: 29f6c1db-86da-48c5-9fdb-f2b67b1f44da  (Sleep after)
      GUID Alias: STANDBYIDLE
      Minimum Possible Setting: 0x00000000
      Maximum Possible Setting: 0xffffffff
      Possible Settings increment: 0x00000001
      Possible Settings units: Seconds
    Current AC Power Setting Index: 0x00000000
    Current DC Power Setting Index: 0x00000384


C:\>powercfg /query scheme_balanced sub_sleep hibernateidle
Power Scheme GUID: 381b4222-f694-41f0-9685-ff5bb260df2e  (Balanced)
  GUID Alias: SCHEME_BALANCED
  Subgroup GUID: 238c9fa8-0aad-41ed-83f4-97be242c8f20  (Sleep)
    GUID Alias: SUB_SLEEP
    Power Setting GUID: 9d7815a6-7ee4-497e-8888-515a05f02364  (Hibernate after)
      GUID Alias: HIBERNATEIDLE
      Minimum Possible Setting: 0x00000000
      Maximum Possible Setting: 0xffffffff
      Possible Settings increment: 0x00000001
      Possible Settings units: Seconds
    Current AC Power Setting Index: 0x00000000
    Current DC Power Setting Index: 0x00000000