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I was playing a game and im pretty sure the hdmi fell out from my computer (though im not sure how that would happen), because the screen suddenly went black and I looked down to see a disconnected hdmi cable. I plugged it back in and nothing. Input Signal Not Found, Check the video cable and video source. I dont know the product name but its a VH240a monitor and a hp omen 870-244 desktop. I unplugged everything, replugged everything, restarted my pc, reset the monitor, and changed hdmi cables. Nothing. I need help

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