ClickMonitorDDC vs Monitor Switch

ClickMonitorDDC is a free Windows utility for controlling external monitor settings through DDC/CI. Depending on monitor support, it can adjust brightness, contrast, speaker volume, RGB gains, and color temperature. Multiple displays can be controlled independently or have settings synchronized. Controls include tray options, hotkeys, and the mouse wheel; shortcuts switch profiles, while command-line arguments or hotkeys can automate adjustments and profile changes. The listed Windows versions are 7, 8, 10, and 11, and the monitor must have DDC/CI enabled. Some laptop displays may restrict DDC/CI, and some monitors may not support every setting. The download is a portable app that runs without formal installation. The privacy policy says the software runs locally and does not collect, transmit, or store personal data from the computer, monitor, or hardware configuration. It separately says the website may collect browsing data and use cookies. The utility is described as intended for professionals, gamers, and everyday users who want monitor controls.

Monitor Switch is an MIT-licensed service for switching a monitor’s input and controlling its DDC/CI features through a browser interface, HTTP API, scripts, or Home Assistant. It is designed for people who use one monitor with multiple computers, including when the computer currently displayed is asleep or off. Where a monitor exposes the controls, the service can adjust brightness, contrast, volume, mute, picture mode, colour temperature, RGB gain, and black level. It can also read usage hours, firmware level, refresh rates, and power state. Editable profiles set monitor values and can replace incorrect capability detection. For Home Assistant, MQTT discovery presents profile features as entities such as selectors, sliders, and sensors. The service runs on a Raspberry Pi connected to the monitor by HDMI; setup requires Raspberry Pi OS and SSH, and installation uses an Ansible playbook. The project is described as usable but not yet released. Hardware verification is reported only for a Samsung Odyssey G9 with a Raspberry Pi Zero 2 W; other monitors have not been verified.