If your display driver supports WMI, then you can change the display brightness using PowerShell – event on remote machines!
Here's the function:
function Set-MonitorBrightness { param ( [Parameter(Mandatory=$true)] [Int][ValidateRange(0,100)] $Value, $ComputerName, $Credential ) $null = $PSBoundParameters.Remove('Value') $helper = Get-WmiObject -Namespace root/WMI -Class WmiMonitorBrightnessMethods @PSBoundParameters $helper.WmiSetBrightness(1, $Value) }
Simply specify a value in the range of 0 to 100 and see your display brightness change. Supply remote computer machine name(s) or IP address(es) to the -ComputerName parameter, and surprise your colleagues with a remotely dimmed display or dim all displays during lunch break (as usual, WMI remote access requires local Administrator privileges and that you have set up a remote administration firewall rule).
If you get a "not supported" error message, then your display driver unfortunately came without WMI support.
This could be the "fun" part: simulating a flaky display:
for($x=0 $x -lt 20 $x++) { Set-MonitorBrightness -Value (Get-Random -Minimum 20 -Maximum 101) Start-Sleep -Seconds 1 }