changedres

changedres is a command-line utility commonly found on Unix-like operating systems, primarily used to modify the screen resolution of a display. It allows users to programmatically change the graphical output settings without needing to interact with the desktop environment's display configuration tools. This can be particularly useful in scripting or automated setups where manual intervention is not feasible.

The tool typically takes arguments specifying the desired width, height, and sometimes the color depth of the display. For example, a command might look like changedres 1920 1080, which would attempt to set the resolution to 1920 pixels wide by 1080 pixels tall. The exact syntax and available options can vary depending on the specific implementation of changedres and the underlying graphics drivers and system architecture.

changedres often relies on underlying graphics system interfaces to communicate the resolution change. This might involve interacting with X server extensions, kernel mode setting (KMS) interfaces, or other display server protocols. Its use is generally limited to console environments or situations where a graphical desktop is not actively running or is being managed programmatically. In modern desktop environments, display settings are usually handled through graphical tools or more sophisticated command-line utilities like `xrandr` on systems using the X Window System.