Why Do HDMI Cables Stop Working? Solved

How And Why Do HDMI Cables Stop Working? Solved | cpugpunerds.com

HDMI (High-Definition Multimedia Interface) cables are the latest type of display cables for connecting TVs, game consoles, computers, and other electronic display devices. 

These cables send high-quality audio and video data, so your multimedia experience will run smoothly. Even though HDMI cords are used a lot and last a long time, they can sometimes have problems and stop working. 

In this article, we will discuss all the possible reasons why it happens and their easy solutions. Understanding these issues can help users fix and avoid problems, ensuring their HDMI cable connections work well and last as long as possible.

Why Do HDMI Cables Stop Working?

It is due to physical damage, incompatibility, poor connection, interference, hardware defects, and outdated firmware or software. Replacing the damaged HDMI, buying compatible cable, firming the connection, eliminating interference, fixing hardware defects, and updating drivers can fix these issues.

Physical Damage

One of the most prevalent causes of HDMI cable failure is physical damage. It includes everything that can cause an interruption in the passage of the signal, such as bent pins, cuts, or kinks in the wire. Furthermore, the main pins can be damaged if you constantly plug and unplug the HDMI cable. Such physical damages are hard to resolve. 

  • How To Fix It?

Check your cable for any obvious signs of damage. It is recommended to get a new one if one is discovered. To forestall problems of a similar nature in the future, you should be careful when handling the new cable. You must avoid excessive bending or twisting and press it gently to plug it into the device.

How And Why Do HDMI Cables Stop Working? Solved | cpugpunerds.com

Incompatible HDMI Cable

Another issue may be the incompatibility between the device and the HDMI cable you are connecting. For instance, a cable from a previous version might not be compatible with more modern, high-resolution devices. Moreover, the results will remain the same if you try using a converter. 

  • How To Fix It?

Make sure your HDMI cable and devices are compatible. For instance, if you are trying to connect a 4K display, you will need at least a 2.0 HDMI cable. There are specific types of HDMI cables for specific resolutions and devices. Most of the time, this problem can be fixed by upgrading your cable.

Poor Connection

Sometimes the problem can be traced to something as elementary as the cable not being properly connected. HDMI cables are sensitive and have sensitive connections. If you have no display at all, then it might be due to the poor connection between the HDMI cable and the device itself. 

  • How To Fix It?

Unplug and then plug in the HDMI cable thoroughly. Ensure that the HDMI cable is securely put into the appropriate port on both devices and that you are using the most recent version of the HDMI cable. It is possible that it will not create a proper connection if it is slack, which will break the signal.


The electromagnetic signals transmitted by HDMI cables are susceptible to interference from other cables and devices. Most HDMI cables are resistant to any kind of electromagnetic interference. But sometimes, the power lines of other devices get in the way and cause the signal to be disrupted. As a result, you face display issues on your screen.

  • How To Fix It?

The solution is to try moving either the device the HDMI cable is connected to or the cable itself. It is best to route your HDMI cable so it does not pass close to any power lines or other potential sources of electromagnetic interference.

Hardware Defect

There is a high possibility that the issue is not with your HDMI but with the device hardware you are trying to connect. Sometimes the device port on our computer gets damaged, which results in no display signal being sent to the HDMI port.

  • How To Fix It?

To solve this problem, try connecting your HDMI cable to a variety of different electronic devices. The wire is faulty if it is not working on any other device. But if it works on any device, then your hardware is faulty. The best solution is to consult a professional to repair the defective device. If the problem is severe, you might need to replace the hardware.

How And Why Do HDMI Cables Stop Working? Solved | cpugpunerds.com

Outdated Firmware or Software

There is a possibility that the software that is installed on your devices is out of date, which will cause problems with the devices’ ability to connect to one another. Drivers are the most important communicators between hardware and software.   

  • How To Fix It?

Check to see if the drivers on the devices linked to the HDMI cable need to be updated. Keeping the drivers on your devices up-to-date ensures they can communicate through the HDMI cord. You can do it from the “Device Manager.”

Right-click on the start menu and select “Device Manager” from the list. Now scroll down to “Other devices.” Here you will find the drivers related to “Multimedia.” Right-click on them and update them.  

What are the Signs of a Bad HDMI Cable?

A Bad HDMI shows no signals, intermittent signals, sparkles or dots on the display screen, lines on the screen, low resolution, color distortion, unclear image, problems with audio signals, and damaged physical appearance. These signs indicate that you need to replace your HDMI.

  • No Signals

Receiving no signal from the source device is the clearest indication that the HDMI cable in question is somehow defective. It would result in your TV or monitor displaying the message “No Signal” despite the device being powered on and connected.

  • Intermittent Signal

Signal that Cuts In and Out Intermittently If the signal comes in and out at random intervals, there may be an issue with the HDMI cable. It may occur if the connection is not secure or the HDMI cable has sustained physical damage.

How And Why Do HDMI Cables Stop Working? Solved | cpugpunerds.com

  • Sparkles or Dots on the Screen

If you see random sparkles or dots on your screen (also known as “sparklies”), this is generally a sign that a defective HDMI cable is being used. The most common cause of this problem is the cable’s inability to support the bandwidth requirements of the visual stream.

  • Lines on the Screen 

The presence of horizontal or vertical lines on your screen may be an indication that there is a problem with your HDMI cable. These lines could be static, they could be scrolling up or down the screen, or they could be flickering.

  • Low Resolution

Despite their name, HDMI connections are only capable of delivering standard-definition video. The cable may be broken if the video is not displayed at your anticipated resolution.

  • Color Distortion

If the colors on your display appear distorted, with some colors being overemphasized or desaturated, this could be a symptom of a faulty HDMI cable. The image may take on an odd hue, like red or green.

How And Why Do HDMI Cables Stop Working? Solved | cpugpunerds.com

  • Unclear Image

Utilizing HDMI results in an image that is crisp and distinct, one of the most significant benefits of using this connection standard. The HDMI cable you’re using is likely faulty if the image you’re seeing is hazy or blurry.

  • Problems with the Audio Signal

Because HDMI cables carry audio and video signals, audio problems might also indicate a problem with the HDMI cable. The audio may cut in and out, it’ll be out of rhythm with the video, or there won’t be any audio.

  • Damage to the Cable’s Physical Appearance

It may seem like stating the obvious, but it is most certainly defective if the cable is visibly damaged. It includes items like bent connectors, exposed wire, apparent kinks in the cable, or breakage in the cable itself.


HDMI cables may suddenly stop functioning for several reasons, including physical damage, incompatibility, a bad connection, interference, hardware problems, or obsolete software or firmware. Physical damage, such as bent pins or wire cuts, is a fairly common cause of malfunction and can be challenging to fix. 

Modern high-resolution devices may not work with older cables, requiring a suitable cable. There can be no display at all if the connection is poor, commonly due to faulty installation or loose connections. 

The HDMI signal can be disrupted by interference from other cables or devices, which requires rearranging cables and devices so that there is as little electromagnetic interference as possible. Hardware issues with linked devices can also prevent HDMI signal transmission.

Recognizing the symptoms of a defective HDMI cable, such as the absence of a signal, an intermittent signal, sparkles or dots on the screen, lines on the screen, low resolution, color distortion, an unclear image, and audio signal difficulties, can assist in the identification of cable flaws. 

It is essential to remember that damaged cables, such as bent connectors or exposed wires, are most likely faulty and ought to be replaced.

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