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9 Ways to Resolve If My Monitor Is Not Receiving Signal




Nothing is more infuriating than being confronted with a monitor that indicates there is no signal. It puts an end to all your plans and leaves you exhausted.


We'll walk you through the troubleshooting process in detail in this post. 


Examine Your Cables



Before you check anything else, thoroughly inspect your monitor cables. One of the most common causes of a monitor reporting no signal is a faulty, loose, or misplaced cable.


How to check your DVI, HDMI, or DisplayPort cables properly:


  • Unplug and replug each cable. Ascertain that each is properly connected (fully pushed in).
  • You should also ensure that each cable is in its proper location.
  • After that, check for any damage cable. Examine for fraying, bends, and nicks. Due to the fact that some issues are not readily visible, it's also a good idea to rub your finger along each cable. This will enable you to detect less obvious problems.
  • Inspect the cable ports. Dust and debris can clog the ports and cause the connection to fail.
  • Now, you can test each of the cables on a different monitor. If you do not have a spare monitor, we recommend requesting one from a friend.
  • If a cable does not work with the new monitor, this is most likely the source of the no signal problem. You will need to purchase a replacement cable.
  • If all of your cables appear to be functional, proceed to the next possible solution.


Examine the Monitor's Input Source



Numerous monitors feature multiple input sources in today's market, where versatility is critical. If your monitor is set to the incorrect input source for whatever reason, you will almost certainly encounter a signal issue.


By accessing the display menu settings, you can view (and change) the monitor's input source.


  • To begin, open the display menu and navigate to the "input source" setting. In addition, some monitors include a physical button on the side. This button cycles through the available options.
  • Configure your monitor's input source to the appropriate one. For instance, if the device to monitor connection is via an HDMI cable, you would specify HDMI as the input source.


Examine Your Adapters


If you're using an adapter, check it as well. Occasionally, the display adapter may be defective, obstructing the connection. Additionally, the type of adapter can be an issue. If your adapter is unable to support multiple monitors or the resolution set on your monitor, this may result in the no signal issue. We go into greater detail about the resolution configuration down below.


Reset the Monitoring Device


Occasionally, resetting the monitor can help restore normal operation. The resetting procedure is typically straightforward, but may vary depending on the manufacturer of your monitor. Consult their support website or the monitor's manual.


Conduct a Test Using a Different Device or Monitor


Are your cables in good condition and your monitor is set to the correct input? Then there is a possibility that there is a problem with either the monitor or your device.


You can determine which monitor is causing the issue by using another one:


  1. Change your monitor and connect your device to it.
  2. If the replacement monitor works properly, your original monitor is most likely faulty. You must have it inspected and repaired by the manufacturer. Depending on the nature of the fault, it may be more cost effective to purchase a new monitor.
  3. If the no signal issue persists, the issue is most likely with your PC. You'll need to troubleshoot your device – we'll walk you through the process below.


Having said that, keep in mind that some monitors may work properly while others do not due to a device issue or setting (such as resolution configuration). As a result, we recommend connecting your monitor to a different PC as well.


Examine the hardware on your computer


If none of the methods above work, you'll need to open up your computer and inspect the hardware. Even a single loose or defective component can cause havoc.


Ensure that your computer is turned off before you begin troubleshooting the hardware. Additionally, you should unplug all cables (including the power cord).


To begin, check for loose components. Open the case and inspect it for anything suspicious. A component may appear to be out of place or at an awkward angle. However, the majority of missing components will be concealed. You'll almost certainly need to feel around for or reattach each component.



While locating a loose component is relatively straightforward, identifying a busted component can be more difficult. You'll need to replace each one individually to determine which one is damaged.


We recommend starting with the graphics card, as it is most likely to be the source of the "no signal" issue if it is loose or damaged. In addition, we recommend checking your RAM sticks – a faulty, dirty, or oxidized ram stick can result in monitor display issues. Then inspect the remaining hardware, including the motherboard and power supply unit.


Reset the CMOS memory



Likewise, you can attempt to reset your computer's CMOS:


  • Power down your computer and unplug all cables.
  • Remove the cover from the case and locate the CMOS battery.
  • Gently pry it away from the motherboard – you shouldn't need to apply much force.
  • After 1 to 5 minutes, replace the CMOS.

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