# ASUS XG34WCDG: mapping DDC/CI monitor controls

> The ASUS XG34WCDG reference maps DDC/CI controls for display modes, colour, HDR, OLED care, proximity sensing and Aura effects. It correlates VCP values with on-screen changes and reports observed write and readback behavior on one unit, while separately describing the USB Aura interface from host records and published sources.

- Type: Case study
- Targets: Protocol
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-06
- Added to the catalog: 2026-11-09
- Original resource: <https://github.com/immortalbob/asus-xg34wcdg-protocol>
- Primary source: <https://github.com/immortalbob/asus-xg34wcdg-protocol/blob/ed51f5ca2593178d951cd8de5d7c03e46d41f7ac/asus-xg34wcdg.md>
- Catalog page: <https://awesomerea.org/resources/asus-xg34wcdg-protocol-case/>
- Record JSON: <https://awesomerea.org/resources/asus-xg34wcdg-protocol-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/asus-xg34wcdg-protocol-case/index.md)

## Requirements & limits

- **Scope:** The observed DDC/CI behavior comes from one firmware-101 unit on Windows 11 over DisplayPort.
- **Limits:** The USB Aura protocol was not captured or tested on this model.
- **License:** CC BY 4.0; attribution is required.

## Primary sources

1. <https://github.com/immortalbob/asus-xg34wcdg-protocol/blob/ed51f5ca2593178d951cd8de5d7c03e46d41f7ac/asus-xg34wcdg.md>
2. <https://github.com/immortalbob/asus-xg34wcdg-protocol/blob/ed51f5ca2593178d951cd8de5d7c03e46d41f7ac/README.md>
3. <https://github.com/immortalbob/asus-xg34wcdg-protocol/blob/ed51f5ca2593178d951cd8de5d7c03e46d41f7ac/LICENSE>

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## About this entry

The description was reviewed against primary sources.
Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.