The HP Display LiteSaver utility came with my monitor and stated:
HP Display LiteSaver installs a WMI Provider which creates a WMI object called Win32_DisplayPowerSaving in the root\CIMV2 namespace.
The WMI object has (among others) the following method: PowerOffNow (no parameters are given).
I'm completely new to WMI but wrote these two lines in PowerShell anyway:
PS C:\Users\allardb> $obj = Get-WmiObject -ComputerName AB -Namespace root/cimv2 -class win32_DisplayPowerSaving
PS C:\Users\allardb> $obj | Invoke-WmiMethod -Name PowerOffNow
No errors, no warnings, no result. Nothing happens.
What am I doing wrong?