I do not have the original display I got the laptop without it...

I tried with a 15-db cable I had laying around but the issue remains...

Hey guys i need your help to fix this problem with this HP 15-da0073wm i7-8550U, this laptop originally has a 40 pin display connector for the Cell Touch eDP display and since i couldn’t acquire that display i decided to adapt the 40 pin connector to 30 pins discarding the touch related pins since the first 30 pins are the same as non-touch eDP displays, the problem is that it worked but not as i expected, you can see the problem in the pictures, i already tried to isolate the display cable from external interference or i think so, i tried with other displays but no video just black screen,...