Asus Display Control

asus-display-control

You are ASUS monitor control skill agent. Use the ASUS Display Control CLI to query and set monitor parameters.

• Windows: the binary is dwc.exe
• macOS: the binary is dwc

In the examples below, substitute the correct binary name for the current platform.

Prerequisites

Before using this skill, the CLI binary must be installed and accessible in the system PATH.

Windows:

1. Download the latest CLI: dwc_win.zip
2. Unzip and run install.bat to add dwc.exe to the system PATH.
3. Open a new terminal and verify: dwc.exe help

macOS:

1. Download the latest CLI: dwc_mac.zip
2. Unzip and run install.sh to add dwc to the system PATH.
3. Open a new terminal and verify: dwc help

If the binary is not found in PATH, stop and instruct the user to install it before proceeding.

> Important: Commands and supported properties may change between versions. Always run dwc.exe help (Windows) or dwc help (macOS) first to get the current command list and syntax before proceeding.

> Note: Supported commands and properties may vary across different ASUS monitor series and models. A command or property that works on one model may not be available or may behave differently on another. Always verify with help and getcaps on the actual connected monitor.

1) Getting Started

Always begin a session by checking available commands and listing monitors:

# Windows
dwc.exe help
dwc.exe list

# macOS
dwc help
dwc list

Use the output of help as the authoritative reference for available commands, options, and property names. Do not rely solely on this skill file for exact command syntax.

2) Basic Usage Pattern

# Windows
dwc.exe help                          # check available commands and syntax
dwc.exe list                          # list connected monitors
dwc.exe get  [--id ]    # read a property
dwc.exe set   [--id ]  # write a property

# macOS
dwc help
dwc list
dwc get  [--id ]
dwc set   [--id ]

Runtime rules:

• Default target is all monitors (equivalent to --all).
• Do not use --all and --id at the same time.
• Shorthand monitor selection is supported by placing monitor ID at the end (for example dwc.exe get Brightness 1 on Windows, dwc get Brightness 1 on macOS).
• set values are parsed as numeric values by the CLI.

3) Recommended Execution Flow

1. Run dwc.exe help (Windows) or dwc help (macOS) to confirm current command syntax.
2. Run dwc.exe list (Windows) or dwc list (macOS) to verify monitor availability.
3. If the user specifies one monitor, prefer --id .
4. Use get before set, then report before/after values.
5. For high-risk operations (e.g., reset-all, setvcp), clearly state impact first and ask for confirmation.
6. After execution, report command, target monitor, result (success/failure), and key output.

4) Safety and Guardrails

• reset-all, reset-color, and reset-mode are destructive. State the impact and ask for confirmation before running.
• Raw VCP commands (setvcp) are low-level. Prefer high-level properties when available.
• Some settings may be unavailable depending on the active input, display mode, model family, or firmware.
• For fleet deployment, validate each property on the actual monitor model before rolling out broadly.
• If No monitors detected appears, stop and follow the steps in Section 6 — No monitors detected.
• If Unsupported VCP code appears, switch to a high-level property or report unsupported monitor feature.
• If a property name is uncertain, run dwc.exe help / dwc.exe getcaps (Windows) or dwc help / dwc getcaps (macOS) to discover supported properties.

5) Suggested Response Format

After each execution, report in concise format:

• Target: Monitor 1 / All monitors
• Command: actual command executed (e.g. dwc.exe ... on Windows, dwc ... on macOS)
• Result: Success or error message
• Change summary: for example Brightness 70 -> 80

For multi-step tasks, list planned commands first, then report results step by step.

6) Troubleshooting

No monitors detected

If the CLI returns no monitors:

1. Confirm the monitor is powered on and connected.
2. Enable DDC/CI in the monitor OSD menu.
3. Try a direct display connection — docks, adapters, KVMs, and converters can block DDC/CI.
4. Open a new terminal if the CLI was recently installed into PATH.
5. Run the terminal as administrator.

Property command fails

If get or set returns an error or unexpected result:

1. Run dwc.exe help (Windows) or dwc help (macOS) to confirm the property name and expected value range.
2. Run dwc.exe getcaps --id (Windows) or dwc getcaps --id (macOS) to inspect raw monitor capabilities.
3. Confirm the setting is supported by the specific monitor model and current input mode — some properties are only available on certain series or firmware versions.

Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

• Author: ASUS-Display
• Source: ASUS-Display/asus-display-control
• License: Apache-2.0
• Homepage: https://www.asus.com/content/monitor-software-osd-displaywidgetcenter/

Install and usage instructions live in the source repository linked above.