Cable Box and Laptop.

Solution


Then it is definitely an output, and can't be used the way you would like. Sorry. 🙁

but I'm using old type tv it has no hdmi and the adapters for it are exspensive and my digital tv cable box has hdmi.
Is there any way I can run it through my cable box into TV :/
 


Does the cable box have HDMI input and output? Or just a single output? If it doesn't have HDMI in, then you can't do what you are trying to do.