ASUS DisplayWidget Center vs DDCcontrol

ASUS DisplayWidget Center is free software for managing and adjusting compatible ASUS monitors on Windows and macOS. It lets users change display modes, brightness, contrast and colour temperature. Productivity tools include eye-care controls, MultiFrame window layouts, PIP/PBP, KVM controls and ZenScreen auto rotation. App Tweaker can apply presets or custom profiles to selected apps, and users can assign keyboard shortcuts to monitor settings. OLED Care includes pixel cleaning, uniform brightness and timer reminders, though feature availability varies by monitor. Gaming tools such as AI Visual and GamePlus are limited to specific monitor models or series. The AI Assistant accepts text or voice input to adjust settings and answer ASUS display product FAQs, but requires internet access and an account login; use may be limited to maintain service quality. Display CLI provides programmatic display control, while AI Agent Skills let compatible agents change settings using natural-language requests. Supported systems are Windows 11 or later and macOS 12 Monterey or later. The software works only with select ASUS monitors.

DDCcontrol is free Linux software for changing monitor brightness, contrast, color levels and other settings through DDC/CI. It offers a GTK interface for graphical control and a command-line tool for terminals, scripts and automation. Communication uses Linux’s i2c-dev interface and /dev/i2c-* devices, which must be readable and writable before monitors can be configured. USB-connected DDC/CI displays are not supported yet. A monitor database is required for monitor-specific controls and proper operation. The ddccontrol-scanmonitor utility reads a connected display’s EDID, capabilities and supported controls, and can generate a monitor database XML file; scanning does not alter control values. The maker’s database index lists 474 monitor profiles in release 20260928. Packages are listed for Debian/Ubuntu, Fedora and openSUSE, alongside source releases and source builds. The project uses the GNU General Public License version 2.0 and directs support questions to GitHub Issues.