Why is my computer screen not showing anything but the CPU is on?

Jose

New member
Computer was working fine earlier. I thought it was my screen so i hooked up the CPU to another screen that i have and still nothing shows, the screen is just black like the CPU is off or on sleep mode. Everything is connected right. Has this happened to anyone? what can i do to fix it? is it a hardware problem or maybe the computer got a virus?
 
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