hdmi dont work

Hello everyone, I was gifted a Toshiba 46xv640u from a neighbor who claimed it started having issues after a lightning strike and I'm looking to fix it. The issue is that there is no display or audio when using HDMI ports. The Tv powers on fine, and can navigate the settings menus, and can even...

1tb 970 Evo plus Asus RTX 2070 Strix 08G Gaming 8gb GDDR6 MSI b450 tomahawk max ryzen 7 3700x Kingston 16gb hyperX fury ddr4 3200mhz Will this monitor cables give me 144hz?? BenQ ZOWIE XL2411P View: https://youtu.be/dm-t__AgbIM?t=165 In this video, the guy said You are not able to get 144hz...