no signal from tv using hdmi cable from my computer

[benggie]

so my computer recognize the tv but its not displaying anything i tried using nvidia control panel its still not working. it worked with my laptop and i tried my computer to other tv and it work its just this tv that doesnt work. in the computer my tv is detected but there is no signal from the tv

 

[Guest]

I know its stupid, but make sure its plugged into the GPU not the mobo