So. I'm using a HDMI cable to extend my display to my TV and it's been working fine upuntill a few days ago, Now it won't display anything. I know my laptop port is fine, it works with a spare Much shorter cable i have. And the cable I orginally used is also fine because it displays through both my PS4 and PS3, I got no clue why It's acting like this and I've never come across a problem like this with any form of hardware, My laptop does not acknowledge my TV with the first cable mentioned either.