I put the original comment in the wrong section... Rather than reposting it in it's entirety, I'll just put a link..https://rog.asus.com/forum/showthread.php?126534-ASUS-GU502L-Powers-Up-Keyboard-Lit-Power-Lite-On-No-DisplayApologies to the moderator...

This is severely stressing me out so I hope someone can help..A friend asked me to look at his ASUS GU502L that was having audio issues.. As in No Audio... I did the standard driver uninstall/reinstall.. No luck... Thinking that the audio was linked ...