Second monitor suddenly stopped working, now gives me "No Signal"

[ana_pudim]

I'm using an Acer Predator Helios 300 with Windows 10 on it, and I keep a second monitor (an LG TV) connected to it at all times. One day, right after I turned on the computer, it started showing me a "No Signal" message on the TV screen, despite the fact that the computer recognizes there's a second monitor plugged in (and what exactly this second monitor is, an LG TV). Yes, I'm in the correct input in the TV. Now, I've tried many, many things: - It's not the fault of the HDMI cable as I was able to plug in something else to this TV using the same cable, in the same input, and I tried differ

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