ddcutil Documentation

Introduction

Command Overview

Command Examples

Command Examples
ddcutil detect example
ddcutil getvcp example
ddcutil vcpinfo example
ddcutil capabilities example

Command Detail

Command Detail
Primary Commands
- detect
- capabilities
- getvcp
- setvcp
- vcpinfo
- dumpvcp & loadvcp
- scs
Secondary Commands
Command Options
Command Options
libddcutil Options

Specific Facilities

Table Type Features
USB Connected Monitors
Color Management
User Defined Features
Configuration File

Installation and Configuration

Installation and Configuration
Post-Installation Checklist
Install ddcutil From Prebuilt Packages
Building From Source
Shared Library Configuration
Configuration and Installation Diagnostics
I2C Device Permissions
USB Device Permissions
Kernel Module Configuration
Special Nvidia Driver Settings
Setting Nvidia Driver Options Using X11
Notes on driver amdgpu
Virtual Machines
Raspberry Pi
Notes on Specific Monitors
Notes on Particular Configurations
USB-C DisplayPort Alt Mode

API

C API
Shared Library Release Notes
Shared Library Changes for Release 0.9.0
Shared Library Changes for Release 0.9.3
Shared Library Changes for Release 0.9.5
Shared Library Changes for Release 0.9.6
Shared Library Changes for Release 0.9.8
Shared Library Changes for Release 0.9.9
Shared Library Changes for Release 1.0.0
Shared Library Changes for Release 1.1.0
Shared Library Changes for Release 1.2.0
Shared Library Changes for Release 1.3.0
Shared Library Changes for Release 1.4.0
Shared Library Changes for the Next Release

Background

Monitor Control Command Set
DDC vs I2C
DDC and DisplayPort
References

Additional Topics

Articles about ddcutil
Frequently Asked Questions
Technical Support
Comparison with ddccontrol
DDC Null Message
Reverse Engineering Proprietary DDC Extensions
Acknowledgements
Technical Notes

Release History

Releases
Release Notes
Preliminary Notes for the Next Release
Announcement History

ddcui

Overview
Command Line Options
Building ddcui
ddcui Release Notes
Preliminary Notes for the Next ddcui Release
ddcui Frequently Asked Questions

Related Resources

Monitor Specifications
Windows Utilities for Monitor Control
Applications using ddcutil

ddcutil Documentation

»
Command Examples »
Command Examples

Command Examples

ddcutil detect
ddcutil capabilities
ddcutil getvcp
ddcutil vcpinfo

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