LCDBOARD 30 Pin eDP Signal Cable... https://www.amazon.com/dp/B07CLTW68K?ref=ppx_pop_mob_ap_share

I think this is the cable you need: https://smile.amazon.com/Screen-Signal-Cable-1366x768-1920x1080/dp/B07CLTW68K/

Make sure you tell them you need the eDP cable. Did you try replacing the HDMI cable with one of your own?