We are independent & ad-supported. We may earn a commission for purchases made through our links.
Advertiser Disclosure
Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.
How We Make Money
We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently of our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.

How do I Fix Common HDMI® Problems?

John Lister
By
Updated May 16, 2024
Our promise to you
EasyTechJunkie is dedicated to creating trustworthy, high-quality content that always prioritizes transparency, integrity, and inclusivity above all else. Our ensure that our content creation and review process includes rigorous fact-checking, evidence-based, and continual updates to ensure accuracy and reliability.

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

Editorial Standards

At EasyTechJunkie, we are committed to creating content that you can trust. Our editorial process is designed to ensure that every piece of content we publish is accurate, reliable, and informative.

Our team of experienced writers and editors follows a strict set of guidelines to ensure the highest quality content. We conduct thorough research, fact-check all information, and rely on credible sources to back up our claims. Our content is reviewed by subject-matter experts to ensure accuracy and clarity.

We believe in transparency and maintain editorial independence from our advertisers. Our team does not receive direct compensation from advertisers, allowing us to create unbiased content that prioritizes your interests.

The simplest, and most common reason for HDMI® problems is that either the source, such as a DVD player, or the display, such as a TV screen, is not set to use HDMI® signals. A particular source of this problem is cable boxes that are set to use an analog connection by default. The solution is simply to access each device's menu settings and choose the correct option, which may be listed as HD or HDMI®.

One of the most annoying HDMI® problems is white dots appearing on the television. This resembles the type of interference that appears on over-the-air TV broadcasts during bad weather. In fact the most common cause of this with HDMI® is an older cable not being capable of carrying all the data in the signal. The white dots are where the relevant picture information has not been carried. The solution is to make sure to use modern cables, which will be listed as compatible with at least the HDMI® 1.3 standards.

Another common source of HDMI® problems is with HDMI® switchers, which allow multiple cables to use a single socket, usually on a television. These work by devices sending power signals to tell the switcher when their input should be passed through. This can lead to problems with HDCP, the digital copy protection used on HD sources.

Each device must complete a "handshake" to confirm that it is HDCP compliant. If one device is not compliant, the other will shut down the connection. With a switcher, all the devices must be compliant and a single failed "handshake" shuts down all connections. Sometimes legitimate HDCP devices fail to complete the handshake. If this happens, it can sometimes be cleared by rebooting devices, or disconnecting all the devices and trying them one by one in order to isolate the problem.

One supposed solution to HDMI® problems that rarely works is to buy a more expensive cable. With analog systems, this is a valid solution as a better quality cable will usually mean a stronger signal gets through, lessening the likelihood of poor quality picture or sound. As HDMI is a purely digital format, there are no degrees of quality or strength in the signal. Either it gets the information through or it doesn't. While extremely cheap cables may be poor quality, a well-made cable will work exactly the same regardless of its price.

It is possible for a damaged cable to mean no signal gets through at all. Damage is more likely in a cheap, poor-quality cable. If there is no picture and all other possibilities have been eliminated, it is well worth trying a different cable to see if that was the problem.

EasyTechJunkie is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
John Lister
By John Lister
John Lister, an experienced freelance writer, excels in crafting compelling copy, web content, articles, and more. With a relevant degree, John brings a keen eye for detail, a strong understanding of content strategy, and an ability to adapt to different writing styles and formats to ensure that his work meets the highest standards.
Discussion Comments
By anon950716 — On May 12, 2014

I recently replaced my component cables connecting my t.v. to a dreamlink satellite receiver with an hdmi cable, however I have noticed a "problem". When I press the power button for the satellite receiver to turn it off, it kind of does a screen capture and keeps an image of whatever was on screen. I have a philips hdtv and dreamlink satellite receiver. The hdmi cable is a flat one I bought off ebay.

By anon325275 — On Mar 15, 2013

Can anyone help me with a problem with my HDMI splitter (4 port)?

I have a video wall in a betting shop and after a power outage, the screens are now completely blank with a box saying check signal cable.

After checking the HDMI box and the cables, there seems to be no problem, yet the screens are not even letting me put the channel to HDMI; it just stays on PC.

John Lister
John Lister
John Lister, an experienced freelance writer, excels in crafting compelling copy, web content, articles, and more. With...
Learn more
EasyTechJunkie, in your inbox

Our latest articles, guides, and more, delivered daily.

EasyTechJunkie, in your inbox

Our latest articles, guides, and more, delivered daily.