You said you did a display reset, did you do it like how the two beeps will reset it and then you have the option to configure? Does your display component cable have a ripped end and maybe not work?
Try to take the power cable out of your ps3 console, hold the eject button then put the power cable back in holding it, you should start to hear a heavy fan. Once its done, unplug the power cable and plug it back in. Try to do the two beep video reset and then see if it turns on. If not, I would recommend getting a new AV Cable (or HDMI, whatever your using)
I recommend having both the AV cable and HDMI in so you can configure it