How To Fix A Computer That Turns On But No Display On Monitor

Are you having a problem when you turn on your computer and your monitor does not turn on or has no display? Or it just goes into power saving mode? Or it couldn’t detect DVI or HDMI? I have this problem with my 23 inch LG IPS 23EA63 LED monitor and found a quick solution for it. I was having this problem for 2 days and figured out what to do to have it fix and it just takes 20