Install edid-decode by entering the following commands in the terminal:
sudo apt update sudo apt install edid-decode
Description:
decode the binary EDID information from monitors
EDID is binary data encoded in the monitor firmware, which the kernel exposes via /sys/devices/.../drm/card*/card*/edid. edid-decode renders this binary data into a human-readable text form.
Version: 0.1~git20160708.c72db881-1
Section: universe/x11