Solved! My laptop won't connect to my TV via HDMI

Jul 29, 2018
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The screen on my laptop is busted so you can't see anything on it, because of that I use my Tv as a monitor for it. This is the only use for the TV. It used to work by just plugging in the HDMI cord between. But now after my dad had unplugged it for a short while, it for some reason doesn't work anymore. I have tried plugging it into the 2 HDMI slots but neither work. The TV only shows a 'No Signal!' image.
Tv- a really old Toshiba TV.
Computer- Acer : Windows 8