root@BM2LTS-VT:~# for edid in $(ls /sys/class/drm/*/edid); do echo $edid; edid-decode $edid | grep 'Display Product Name' ; done
/sys/class/drm/card1-DP-1/edid
/sys/class/drm/card1-DP-2/edid
    Display Product Name: 'LG TV SSCR2'
/sys/class/drm/card1-DP-3/edid
/sys/class/drm/card1-DP-4/edid
/sys/class/drm/card1-HDMI-A-1/edid