Why Is HDMI Error Unable To Display Video? – Why Your Video Won’t Display

HDMI error

HDMI(High Definition Multimedia Interface) error is one of the most common issues people face on their devices. It can be caused by various things, such as a faulty cable, a BIOS setting, or even a poorly designed TV.

If you’re experiencing an HDMI error and can’t seem to fix it, it may be worth getting a new television or checking to see if there are any known issues with your HDMI cables.

Before We Discuss The HDMI Error Then, We Must Know About HDMI:

HDMI is a high-definition multimedia interface that combines video and audio into a single digital interface.

HDMI is used with versatile digital disc (DVD) players, digital television (DTV) players, set-top boxes, and other audiovisual devices. HDMI provides a high-quality digital video and audio experience.

What Does The HDMI Error Mean?

HDMI cable

If you’re having problems with your video or audio, it may be caused by High-bandwidth Digital Content Protection (HDCP) encryption.

HDMI / HDCP handshaking issues occur when the source doesn’t accept the keys from HDMI Distribution equipment. This can be a problem with your display, cables, or devices.

Fixing The HDMI Error Problem:

If you have an HDMI error, there are a few things you can do to fix the problem:

  1. Check all the connections between your devices to ensure they are secure.
  2. Restart your devices and try again.
  3. Try changing the HDMI channel inputs on your display.

If that doesn’t work, try using a different HDMI cable.

Additionally, it’s always a good idea to check the obvious things, like whether or not the Source device (e.g., DVD / BluRay player) is switched on.

If you’re still having issues, try changing HDMI channel inputs on your display – there may be an issue with either the EDID or HDCP ‘handshake’.

Finally, If the problem persists, you may need to replace your HDMI cable.

Might be This article Solved Your Problem: How To Enable Motherboard HDMI

What Should You Do If The HDMI Error Remains Unresolved?

Common HDMI Cable Faults

If you followed the steps in Technique 1 and the HDMI error still won’t go away, you may need to experiment with other options.

On your television, you should now test and implement several inputs. One option is to try using another audio output device on your computer. Another option is to use a different input on your television.

If the HDMI error remains unresolved, the best thing to do is contact your manufacturer or retailer. They may be able to help you troubleshoot the problem or replace the product.

A Brief Consultation On HDCP:

HDCP stands for High-Bandwidth Digital Content Protection. Its system protects digital content as it travels across connections like HDMI, DVI, or DisplayPort.

HDCP handshakes between two devices establish a secure connection before any content is passed between them.

HDCP is a type of digital copy protection developed by Intel Corporation to prevent digital audio and video content-copying as it travels across connections.

HDCP works by encrypting the content that is being transmitted with a key that only authorized devices have.

This prevents unauthorized devices from being able to access and copy the content.

HDCP has been adopted by many major digital content providers and is now used by most Blu-ray players, game consoles, and set-top boxes.

The Most Common Types Of HDCP: 

How Does HDCP Work

There are several types of HDCP, but the most common are Type A 1.4 and Type B 2.2. Both are used to protect digital content from unauthorized copying, but they differ in how they do so.

Type A uses a simple cryptographic key to encrypt the data, while Type B uses a more complex system that includes authentication and key exchange.

Selecting The Correct Output From The Television Menu:

There are a few things to consider when choosing which HDMI output to use on your television. The first is what resolution you want to use.

If you have a 4K television, you will want to use the HDMI 2.2 port. This port can handle resolutions up to 4K.

The next thing to consider is what refresh rate you want to use. If you want to use a higher refresh rate, you will want to use the HDMI 4 port.

This port can handle resolutions up to 1080p at a higher refresh rate. The last thing to consider is what features you want to use. If you want to use features like 3D or HDR, you will want to use

Check To See If Your Tv Has The Most Recent Firmware:

If you have an HDMI-connected TV, it’s important to check if your firmware is up-to-date.

Firmware updates can improve picture quality and sound quality and add new features to your TV.

To check your firmware version, go to your TV’s Settings menu and look for the ‘About’ section.

From there, you should be able to see what version you have and whether or not there’s an update available.

Why Does HDMI Have Sound But No Picture?

There are a few reasons your HDMI connection might have sound but no picture. The first thing to check is that your HDMI cable is correctly plugged into your TV and device.

If it is plugged in correctly, the next thing to check is your TV’s HDMI input settings. If the settings are set to ‘auto detect,’ change it to ‘PC’ or ‘Computer.’ If you still don’t see a picture, try restarting your device.

A Brief Discussion on HDCP

HDCP stands for High-bandwidth Digital Content Protection, which is essentially a form of digital copy protection. This technology safeguards digital content from unauthorized copying.

The latest HDCP 2.2 standard has been developed to meet the protection requirements for your content. In the past, HDCP 2.2 was not available when 4K TVs were first introduced.

However, the majority of 4K TVs currently on the market are HDCP 2.2 compatible. If you want to determine the HDCP 2.2 compatibility of your television, you should:

  • Examine the owner’s manual.
  • Refer to the support pages for the television.
  • Contact the TV manufacturer.



What is the difference between HDMI and HDCP?

HDMI (High Definition Multimedia Interface) is a digital interface used to transmit high-quality video and audio signals between devices, such as TVs, gaming consoles, and Blu-ray players. HDCP (High-bandwidth Digital Content Protection) is a digital copy protection technology used in conjunction with HDMI to prevent unauthorized copying and distribution of digital content.

Can a faulty HDMI cable cause audio and video issues?

Yes, a faulty HDMI cable can cause issues with both audio and video transmission. If you suspect that your HDMI cable is causing problems, try replacing it with a new, high-quality cable.

How do I update my TV’s firmware to fix HDMI errors?

To update your TV’s firmware, follow these steps:

  • Connect your TV to the internet, either through Wi-Fi or an Ethernet cable.
  • Access the settings or menu option on your TV.
  • Look for an option related to software updates, firmware updates, or system updates.
  • Follow the on-screen prompts to download and install the latest firmware update for your TV.

What is the difference between HDCP 1.4 and HDCP 2.2?

HDCP 1.4 is an older version of the HDCP technology and is typically used with devices that have lower resolution output, such as 1080p. HDCP 2.2 is the more recent version of HDCP technology and is designed to work with 4K resolution devices. It provides a higher level of encryption and protection for digital content.

Can I use an HDMI splitter to bypass HDCP?

Using an HDMI splitter to bypass HDCP is not recommended, as it may violate copyright laws and result in poor video quality or other issues. It’s always best to use HDCP-compliant devices and cables to ensure optimal performance and avoid legal issues.

What should I do if my TV doesn’t support HDCP 2.2?

If your TV doesn’t support HDCP 2.2 but you want to view HDCP 2.2-protected content, you will need to upgrade to a compatible television or use an external device, such as an HDCP 2.2-compliant AV receiver, to process the content before sending it to your TV.

Can an HDMI error cause input lag or other gaming-related issues?

Yes, HDMI errors can cause input lag or other issues while gaming. If you’re experiencing input lag or other gaming-related problems, check your HDMI connections and cables, and make sure your TV’s settings are optimized for gaming. You might also consider using a gaming-specific HDMI cable or a device with a dedicated gaming mode to minimize latency and improve performance.

Are there any alternatives to HDMI for connecting devices to my TV?

Yes, there are alternative connections you can use to connect devices to your TV, such as DisplayPort, DVI, and VGA. However, these connections may not offer the same high-quality video and audio transmission as HDMI, and some may not support HDCP. It’s essential to choose the right connection type based on your devices’ compatibility and the desired content quality.


In conclusion, HDMI error is a common problem preventing users from connecting their devices to their TVs.

If you experience this issue, it is recommended that you connect your TV to an external DisplayPort or DisplayPort cable to allow for proper video playback.

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