How to get name and current status of a DRM connector

Use the following command to get the DRM connector names and associated status:

Board $> for p in /sys/class/drm/*/status; do con=${p%/status}; echo -n "${con#*/card?-}: "; cat $p; done

Result example:

DSI-1: connected
HDMI-A-1: connected

Direct Rendering Manager

Display Serial Interface (MIPI® Alliance standard)

High-Definition Multimedia Interface (HDMI standard)