xdpyinfo size error

Hi! Just a problem description. Excuse me for posting here. A DPI error occurs due to a size error. hwinfo   Size: 276x156 mm < True xdpyinfo   dimensions:    1920x1080 pixels (508x286 millimeters) <<<

xrandr : get the precise mode refresh rate like Gnome does

I Xorg Team ! I'm the network administrator of a french high school and I need the generate my Linux client display configuration by command line. To configure the display, Gnome use a monitors.xml file where the randr configuration is stored. I know now how to generate the majority of the entrie