The model number of the computer has nothing to with the monitor. Monitors are not part of the computer. They have their own model name and number. Computers nowadays don't even come with a monitor. They have to be selected and ordered separately. Monitors can last longer than computers. Try using a diff monitor. If you can't do that, check all your display settings on the computer as well as cable connections.
Monitor is set to auto detect and auto detects digital input but then immediately goes dark as if into sleep mode. Computer itself is running fine but monitor will not remain awake. I have tried unplugging and plugging in monitor cable and making sure video card is properly seated without any success. Would be grateful for any suggestions.
Old Inspiron 530 - Monitor sleep issue