Powershell Set Lid Close Action
I wanted to automate setting the action Windows 7 takes when the lid is closed on my work laptop, as this is reset via GPO every time i login.
I know that i can use the powercfg command in a batch script to achieve this:
powercfg -setacvalueindex 5ca83367-6e45-459f-a27b-476b1d01c936 0
powercfg -setdcvalueindex 5ca83367-6e45-459f-a27b-476b1d01c936 0
However, this was a good excuse to attempt learning some powershell. My first attempt takes over 10 seconds to run.
How can i improve on the below, both in terms of runtime & in terms of cleanliness of the code. What would be the idiomatic powershell way to approach the below?
$DO_NOTHING = 0
$activePowerPlan = Get-WmiObject -Namespace "root\cimv2\power" Win32_PowerPlan | where {$_.IsActive}
$rawPowerPlanID = $activePowerPlan | select -Property InstanceID
$rawPowerPlanID -match '\\({.*})}'
$powerPlanID = $matches[1]
# The .GetRelated() method is an inefficient approach, i'm looking for a needle and this haystack is too big. Can i go directly to the object instead of searching?
$lidCloseActionOnACPower = $activePowerPlan.GetRelated("win32_powersettingdataindex") | where {$_.InstanceID -eq "Microsoft:PowerSettingDataIndex\$powerPlanID\AC\{5ca83367-6e45-459f-a27b-476b1d01c936}"}
$lidCloseActionOnBattery = $activePowerPlan.GetRelated("win32_powersettingdataindex") | where {$_.InstanceID -eq "Microsoft:PowerSettingDataIndex\$powerPlanID\DC\{5ca83367-6e45-459f-a27b-476b1d01c936}"}
$lidCloseActionOnACPower | select -Property SettingIndexValue
$lidCloseActionOnACPower.SettingIndexValue = $DO_NOTHING
$lidCloseActionOnACPower.put()
$lidCloseActionOnBattery | select -Property SettingIndexValue
$lidCloseActionOnBattery.SettingIndexValue = $DO_NOTHING
$lidCloseActionOnBattery.put()
Answer
I wanted to do the same thing et get the exact same problem. Finally, I found that you need to insert in your command line the registry keys that are superior to the one you want to modify:
powercfg -setacvalueindex 5ca83367-6e45-459f-a27b-476b1d01c936 0
powercfg -setdcvalueindex 5ca83367-6e45-459f-a27b-476b1d01c936 0
should become:
powercfg -setacvalueindex 381b4222-f694-41f0-9685-ff5bb260df2e 4f971e89-eebd-4455-a8de-9e59040e7347 5ca83367-6e45-459f-a27b-476b1d01c936 0
powercfg -setdcvalueindex 381b4222-f694-41f0-9685-ff5bb260df2e 4f971e89-eebd-4455-a8de-9e59040e7347 5ca83367-6e45-459f-a27b-476b1d01c936 0
Just put that in a BAT file and you're ready to go!