I think that my desktop monitor is broken, how can I check for sure?

My orange light monitor blinks after a power outage, every once in a while the led green lights but just for a second, disconnected ang plugged all back, computer tower is on but nothing comes on the screen.  I have a laptop but don't know enough about computers to hang the Tower until she.   Any suggestions how I might be able to check in with a laptop?  I need specific instructions I don't know true how all this works.  I use the color code system to connect the monitor to the tower.  The laptop has no large port to connect the monitor?

This must be where you plug the external monitor with 15 holes. her you would go to the setting on your laptop screen it should automatically detect the new monitor

Tags: HP Desktops

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