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Overview

The changeres-VDD.ps1 script provides a simple command-line interface to change the resolution of the Virtual Display Driver. It automatically handles administrator privilege elevation and installs required PowerShell modules.

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Requirements

This script requires Administrator privileges and will automatically request elevation through UAC if not already running as Administrator.
  • Virtual Display Driver must be installed and enabled
  • PowerShell 5.1 or later
  • Internet connection (for first run to install dependencies)
  • Required PowerShell modules (automatically installed):
    • DisplayConfig v1.1.1
    • MonitorConfig v1.0.3

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Parameters

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-xres (Position 0)

The horizontal resolution (width) in pixels. Type: Integer
Required: Yes
Aliases: X, HorizontalResolution
Position: 0 (can be specified without parameter name)

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-yres (Position 1)

The vertical resolution (height) in pixels. Type: Integer
Required: Yes
Aliases: Y, VerticalResolution
Position: 1 (can be specified without parameter name)

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Usage Examples

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Set 1920x1080 Resolution

# Using parameter names
.\changeres-VDD.ps1 -xres 1920 -yres 1080

# Using aliases
.\changeres-VDD.ps1 -X 1920 -Y 1080

# Using positional parameters (most concise)
.\changeres-VDD.ps1 1920 1080

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Common Resolutions

# Full HD (1080p)
.\changeres-VDD.ps1 1920 1080

# 2K / QHD
.\changeres-VDD.ps1 2560 1440

# 4K / UHD
.\changeres-VDD.ps1 3840 2160

# Ultra-wide QHD
.\changeres-VDD.ps1 3440 1440

# 5K
.\changeres-VDD.ps1 5120 2880

# 8K
.\changeres-VDD.ps1 7680 4320

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Custom Aspect Ratios

# 16:9 aspect ratio
.\changeres-VDD.ps1 1920 1080

# 21:9 ultra-wide
.\changeres-VDD.ps1 2560 1080

# 32:9 super ultra-wide
.\changeres-VDD.ps1 3840 1080

# 16:10 aspect ratio
.\changeres-VDD.ps1 1920 1200

# 4:3 aspect ratio
.\changeres-VDD.ps1 1600 1200

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Portrait Mode

# Portrait orientation (swap width and height)
.\changeres-VDD.ps1 1080 1920

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How It Works

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1. Self-Elevation

If the script is not running with Administrator privileges:
  • Detects the current privilege level
  • Relaunches itself with UAC elevation
  • Passes all bound parameters to the elevated instance
  • Exits the original process

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2. Dependency Installation

The script sources set-dependencies.ps1 which:
  • Checks if required modules are installed
  • Installs DisplayConfig v1.1.1 from PSGallery if needed
  • Installs MonitorConfig v1.0.3 from PSGallery if needed
  • Imports the modules into the current session
  • Sets PSGallery repository as trusted

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3. Display Identification

Finds the Virtual Display Driver by:
  • Using Get-DisplayInfo to enumerate all displays
  • Filtering for displays with name “VDD by MTT”
  • Extracting the DisplayId for the target display

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4. Resolution Change

Applies the new resolution:
  • Uses Set-DisplayResolution from the DisplayConfig module
  • Passes the DisplayId, width, and height parameters
  • Windows applies the resolution change immediately

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Script Source

Here’s the complete script: 
param(
    [Parameter(Mandatory, Position=0)]
    [Alias("X","HorizontalResolution")]
    [int]$xres,
    [Parameter(Mandatory, Position=1)]
    [Alias("Y","VerticalResolution")]
    [int]$yres
)

# Self-elevate the script if required
if (-Not ([Security.Principal.WindowsPrincipal] [Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole] 'Administrator')) {
    if ([int](Get-CimInstance -Class Win32_OperatingSystem | Select-Object -ExpandProperty BuildNumber) -ge 6000) {
        $CommandLine = "-File `"" + $MyInvocation.MyCommand.Path + "`" "
        $MyInvocation.BoundParameters.GetEnumerator() | ForEach-Object { $CommandLine += "-$($_.Key):$($_.Value) " }
        Start-Process -WorkingDirectory $PSScriptRoot -FilePath PowerShell.exe -Verb Runas -ArgumentList $CommandLine  
        exit
    }
}

# Install dependencies if required
. "$PSScriptRoot\set-dependencies.ps1"

# Getting the correct display
$disp = Get-DisplayInfo | Where-Object { $_.DisplayName -eq "VDD by MTT" }

# Setting the resolution on the display
Set-DisplayResolution -DisplayId $disp.DisplayId -Width $xres -Height $yres

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Troubleshooting

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”Display not found” Error

Possible causes:
  • Virtual Display Driver is not installed
  • Driver is installed but disabled
  • Driver display name doesn’t match “VDD by MTT”
Solutions: 
# Check if driver is installed and enabled
.\virtual-driver-manager.ps1 -Action status

# Enable the driver if disabled
.\virtual-driver-manager.ps1 -Action enable

# List all displays to verify the name
Get-DisplayInfo | Format-Table DisplayName, DisplayId

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Module Installation Fails

Possible causes:
  • No internet connection
  • PowerShell Gallery not accessible
  • Execution policy restrictions
Solutions: 
# Check internet connectivity
Test-NetConnection -ComputerName www.powershellgallery.com -Port 443

# Manually install modules
Install-Module -Name DisplayConfig -RequiredVersion 1.1.1 -Scope CurrentUser
Install-Module -Name MonitorConfig -RequiredVersion 1.0.3 -Scope CurrentUser

# Check execution policy
Get-ExecutionPolicy
Set-ExecutionPolicy -ExecutionPolicy RemoteSigned -Scope CurrentUser

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Resolution Change Doesn’t Apply

Possible causes:
  • Resolution not supported by the driver
  • Display is in an error state
Solutions: 
# Try disabling and re-enabling the driver
.\toggle-VDD.ps1
.\toggle-VDD.ps1

# Check display capabilities
Get-DisplayInfo | Where-Object { $_.DisplayName -eq "VDD by MTT" } | Format-List *

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Script Requires set-dependencies.ps1

The script expects set-dependencies.ps1 to be in the same directory. Make sure both files are in the same folder: 
Community Scripts/
├── changeres-VDD.ps1
└── set-dependencies.ps1

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Automation Examples

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Batch File for Quick Resolution Change

Create set-1080p.bat: 
@echo off
powershell.exe -ExecutionPolicy Bypass -File "%~dp0changeres-VDD.ps1" 1920 1080

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Multiple Resolution Shortcuts

Create different batch files for common resolutions: 
REM set-1080p.bat
powershell.exe -ExecutionPolicy Bypass -File "%~dp0changeres-VDD.ps1" 1920 1080

REM set-1440p.bat
powershell.exe -ExecutionPolicy Bypass -File "%~dp0changeres-VDD.ps1" 2560 1440

REM set-4k.bat
powershell.exe -ExecutionPolicy Bypass -File "%~dp0changeres-VDD.ps1" 3840 2160

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Call from Another PowerShell Script

# Change to 4K resolution
& "$PSScriptRoot\changeres-VDD.ps1" -xres 3840 -yres 2160

# Or using positional parameters
& "$PSScriptRoot\changeres-VDD.ps1" 3840 2160

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Resolution Limits

The Virtual Display Driver supports a wide range of resolutions. Common limits:
  • Minimum: Typically 640x480 or higher
  • Maximum: Depends on driver configuration (can support 8K and beyond)
  • Aspect ratios: Any custom aspect ratio is supported
Test your specific configuration to determine actual limits.

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