Question Hdmi no signal

[SWnerd1978]

So, I had my PS4 hooked up to my PC monitor. Upon plugging everything back into my pc(hdmi cord & ethernet), all I get on screen is no signal from hdmi

 

[Barty1884]

Connected to GPU or motherboard? Fully inserted?

 

[SWnerd1978]

Fully inserted back into it's normal hdmi slot on the back of my pc