"No Signal" when connecting to TV via hdmi

Hey guys, everything use to work fine, now it doesn't =/

I think I may know the problem, I believe it the laptop (asus n550jk) is using my intergrated gpu instead of my dedicated one(gtx850m) to display the TV, and therefore giving it incorrect resolution.

how can I change this? how can I fix this?

Thanks for any help!

What resolution are you sending the TV?

There is a function that display a duplicate of the same picture on both displays (Laptop Screen and TV) , when you choose it , most likely one the both will still show picture go to the display settings and choose the desired resolution.