Réponse à : « Why is my iMac display not powering? »I'm in the same situation. I got a new display data cable from aliexpress but that hasn't solved it. Let me know if any solutions work for you and I'll do likewise.
Réponse à : « DisplayPort cable damaged? Display not being recognized with new one »Jigzat did you ever solve your problem? I'm in the exact same situation and am interested to hear what happened.