Asus Monitor No Signal Issue: How to Fix?

Sometimes, you get a “No Signal” notice on your ASUS monitor when you start your computer. It shows that your PC is not receiving the required correct input for display. 

This signal issue just does not occur when you start your PC; it can happen while you are working, restarting your PC, or when your monitor goes to sleep.

There can be many reasons for this Asus monitor no signal issue, such as damaged cable, outdated drivers, or any defective connection. 

The first step you can take to fix this issue is to power off your computer and then unplug the computer and your monitor. After 30 seconds to 1 minute, power on your computer and monitor. If the problem still remains unsolved, it may be due to hardware or software problems.

But don’t worry, It is just a piece of cake to solve this issue. The solution might be as effortless as just replacing or reconnecting the cables.

This guide will address the most common reasons for this HDMI no signal issue. Then, I’ll share the different ways to solve this problem. You just have to read these fixes and discover the one that works best for you.

Asus Monitor No Signal Reasons?

Firstly, let’s discuss the reasons for this issue because if you successfully find the cause of any problem, you can quickly cure it. So when you correctly understand the reasons behind your ASUS monitor’s no signal issue, you can quickly solve them from the root and avoid them in the future. So, here are some common reasons given below.

1. Hardware is Damaged

Hardware problems can be a cause of your monitor display issue. If your monitor shows no signal issue, maybe your monitor is broken or damaged from the inside. Also, other parts like video cards, motherboards, CMOS, etc., can be impaired, broken, or burnt can lead to this issue.  

2. Outdated Drivers

Sometimes, you can face this problem because your computer drivers are not updated. If your device drivers like graphic drivers or chipset drivers get out of date, they can not detect the new monitor resulting in a low or no signal issue.

3. Defected Displayport

Ports are the places where you connect cables. If the ports of your ASUS monitor are damaged, it can cause a display issue. Many reasons, such as wrong insertion, force input, overpowering, or overheating, can damage ports, including the HDMI port. So, you have to understand which port is for which cable to avoid this problem.

4. Damaged Cable

The damaged or broken HDMI cable can be a primary reason for this HDMI no signal issue. But the damage to other cables like DVI cable, Displayport or power cable can also cause this problem.

When you put the wrong cable in the wrong port, it can also damage the cord.

5. Interrupted Power Supply

When the power supply to your computer is interrupted, it can lead to this display issue because these electronic devices need a smooth and uninterrupted power supply to work properly. So, choosing a low-quality cable or cheap adapter can cause HDMI no signal problems.

How to Fix ASUS Monitor No Signal Issue?

Every technological device can always have problems. So when you get a no signal issue in your monitor, don’t get frustrated and lose your temper. Here are some practical and easy-to-follow troubleshooting steps you may use if you encounter a no signal issue on your ASUS monitor.

1. Unplug and Reboot the Computer and Monitor

Before moving to any other fix, power off and unplug all your devices, such as monitors and computers; after unplugging the power cable, wait for a couple of minutes, replug everything, and turn on the monitor and the computer. This solution worked for most people after they had tried everything else. After you have unplugged and rebooted all the devices, check whether it worked for you or not. If it didn’t work for you, don’t worry; move on to the following methods.

2. Check and Correct the Monitor Input

Most monitors come with multiple input sources, and if you have chosen the wrong input mode on your monitor, it will result in signal issues. 

For this, you have to know two things. One is input cables supported by your Asus monitor, and these usually come in four types, i.e., DisplayPort(DP, HDMI, DVI, and VGA.

The second is the input mode on your monitor. It should be compatible with your input cable. You can do this properly by following these steps.

  • Check what kind of input cable you are using.
  • Locate the source/input button on your monitor screen. For this, open the display menu settings on your monitor and navigate the input source button. Some monitors have actual buttons located on your monitor’s right-hand side or middle. Or they may be on the backside of your monitor.
  • Select the input source that matches your input cable after locating your monitor’s “input source” option.
  • For example, if you use an HDMI cable, select the HDMI input as your input source from the different options.

3. Unplug and Replug the HDMI Cable

The main reason for the HDMI no signal issue is the loose cable connection resulting in the monitor not being connected to the computer. Just unplug and replug the HDMI cable to resolve this issue. 

After replugging the HDMI cable, check whether it is appropriately connected to the monitor and PC or not. You can test this by removing or pulling out the cable; if it is difficult to remove, it means it has been connected firmly.

4. Try a New Display Port Cable

If the issue persists after unplugging and replugging the cable, it may be due to the damaged cable. So, carefully examine your HDMI cable for cracks, cuts, bends, or other damage, and replace it with a new cable. 

Another option you can go for is to try a new display port other than HDMI if you are explicitly facing HDMI no signal issue. For example, you can use DP, VGA, or DVI cable, but you have to adjust the display input settings accordingly.

5. Update the Device Drivers

If your chipsets, graphic cards, and graphic drivers are not updated, you can face this Asus monitor with no signal issue. Simply, you have to update the drivers to the latest version. 

You can update these drivers from the display settings of your computer, but it may be a complex process if you are not a technical person. So, you can use third-party software to automatically recognize and update these drivers. One example of such software is “Driver Easy,” which will detect the wrong drivers and automatically install and update the correct drivers.

6. Test the Monitor with another Computer

If monitor input is set correctly and all of the cables and ports are good and connected appropriately, and you still face the same issue, it may be a problem in your monitor. So it’s time to test your monitor on another computer. 

Connect your monitor to a different device or computer and check if the problem is solved. If the issue remains the same, it is most likely that your ASUS monitor is faulty.

In this case, you may require a new monitor or check over it with a technician or manufacturer.

7. Check Monitor resolution Settings

If your monitor resolution is set lower than your graphic card’s resolution, it will result in a no signal issue. So try to check the resolution configuration of your PC before opening it. 

So the resolution of your graphic card should not be higher than the resolution your monitor can handle; otherwise, you will face this issue.

To fix this problem, Use safe mode and reboot your computer. This safe mode allows your computer to work at a lower resolution than the regular use.

After this, you can go to the resolution settings of your computer and adjust the display resolution.

8. Contact Asus Customer Care or a Technical specialist 

If you have attempted all of these fixes and this signal issue is still not solved, you should contact ASUS customer care or any technical person.


In this post, I have described the reasons and fixes for the ASUS monitor no signal issue. So, when you face such a problem, don’t panic; find the root cause and try to solve it by following the guidelines mentioned above. But if you face any difficulty, you must contact a skilled person in this field to help you resolve this issue.

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