If you are trying to hook up a computer to your monitor and there are no video signals showing up, it can be pretty frustrating. The good news is that typically this type of problem is relatively easy to troubleshoot and solve.
First, you need to ensure that the monitor is connected correctly to the PC. Verify that the video cable is securely plugged into both devices, as well as plugged into the correct ports on each. If using a laptop, make sure the VGA or HDMI cable is connected to the laptop, as well as the monitor. Try different ports on each device if needed, as some laptops have multiple ports and the wrong one may have been selected.
Next, check the power cords for both the monitor and the computer. Make sure that they are plugged in and that the outlet working properly. It is possible that the wall outlet could be faulty or the power cord could be loose.
Once all cables are securely connected, turn on both the monitor and the computer. Some monitors require a particular source to be selected, so check the on-screen menu to be sure the correct source has been chosen. If the PC is still not displaying any video signals, try turning the PC off and then back on again. This will help reset the video connection and should cause the video signals to appear.
If you are still having issues getting the video signals to display on the monitor, there could be an issue with the video card on the PC. Make sure the drivers for the video card are up to date, as they could be outdated and therefore causing an issue. You can also check and make sure the video card itself is securely seated inside the PC. It is possible that the card is not sitting correctly, or may even be damaged.
Finally, if none of the above steps work, a hardware issue could be the cause. This could be a problem with the monitor itself or the video card on the PC. In this case, you may need to take it to a technician to be looked at.
By following these steps, it is usually quite easy to pinpoint and solve the issue of why there are no video signals appearing on the monitor. A little bit of troubleshooting can go a long way in helping you get your computer and monitor up and running again.