Samsung Monitor Not Detecting HDMI (FIX)

Having issues connecting your Samsung monitor to your PC or laptop via HDMI?

If your Samsung monitor is not detecting the HDMI input, you can try a few things to resolve the problem.

This guide will walk you through common causes and fixes to get your Samsung monitor to detect HDMI again.

Samsung Monitor Not Detecting HDMI (FIX)

What Does “Not Detecting HDMI” Mean?

When your Samsung monitor is “not detecting HDMI, ” it does not recognize the HDMI cable connection from your PC or laptop.

As a result, the monitor will stay in standby mode with a black screen instead of displaying the video input.

Some common symptoms include:

  • Black screen on your Samsung monitor when connected via HDMI
  • Monitor power LED may blink or show standby mode
  • HDMI source not appearing in the monitor input menu
  • “No Signal” or “Check Signal Cable” message

Causes of Samsung Monitor Not Detecting HDMI

There are a few potential causes why your Samsung monitor is not detecting the HDMI source:

1. Faulty HDMI Cable

The most common cause is a faulty or damaged HDMI cable.

HDMI cables can degrade over time and develop issues with the wiring inside the cable.

Connect the monitor and PC with a different HDMI cable that works properly.

2. Loose HDMI Port Connection

Check that the HDMI cable is inserted fully into the HDMI port on both the PC and monitor.

Reseat both ends of the cable firmly into the HDMI ports.

A loose connection can prevent the signal from coming through.

3. Wrong Input Source Selected

Many monitors have multiple input sources like HDMI, DisplayPort, DVI etc.

Ensure the Samsung monitor’s input source is set to the correct HDMI input your PC or laptop is connected to.

Select the proper HDMI input from the monitor’s on-screen menu.

4. HDMI Version Incompatibility

Older HDMI cables and devices may only support up to HDMI 1.4 standards.

There may be incompatibility issues if you are connecting a newer device that uses HDMI 2.0/2.1.

Try using a newer HDMI 2.0 cable between the monitor and the source.

5. Monitor or GPU HDMI Port Defective

In rare cases, the HDMI ports on the monitor or graphics card may be damaged.

Connect the monitor and PC to a different display or device using that same HDMI cable and port.

If the issue persists on different displays, the port may need service.

How to Fix Samsung Monitor Not Detecting HDMI

Here are the steps to troubleshoot and fix a Samsung monitor not detecting HDMI signal:

1. Try a different HDMI cable

The easiest first step is to use a different HDMI cable that you know works to connect your PC and Samsung monitor.

Faulty cables are the most common cause of HDMI issues.

2. Securely reseat HDMI cable at both ends

Remove and firmly plug the HDMI cable back into the ports on the PC and monitor.

Loose connections from worn ports can prevent a signal.

3. Select the proper HDMI input source

Use the monitor’s menu to ensure the input source is set to the correct HDMI port your PC is plugged into.

Consult your monitor manual for input selection.

4. Update monitor/GPU drivers and firmware

Outdated firmware and drivers can sometimes cause HDMI detection problems.

Update your monitor firmware and graphics card drivers to the newest available versions.

5. Use an HDMI repeater/amplifier

For long HDMI cable runs, signal degradation can occur.

An HDMI repeater boosts the signal strength and prevents loss of connection.

6. Replace faulty or incompatible HDMI cable

If issues persist, a new HDMI cable supporting higher versions like HDMI 2.0 can resolve HDMI incompatibility problems.

7. Test with different monitors, PC or laptop

Connect your PC and the monitor to other displays or devices to determine if the issue is with your monitor’s HDMI port or your PC’s video output.

8. Service HDMI ports

As a last resort, the HDMI ports on your monitor or GPU may need service if damaged.

Contact Samsung or your graphics card manufacturer for warranty support.

Following these troubleshooting tips should help identify and resolve the cause of your Samsung monitor not detecting an HDMI signal.

The problem is usually easily fixed with a new HDMI cable.

Frequently Asked Questions

Ques 1: Why is my Samsung monitor not detecting HDMI?

Ans: The most common reasons a Samsung monitor won’t detect HDMI are a faulty or damaged cable, loose connection at the ports, incorrect input source selected in the monitor menu, or incompatibility between HDMI versions.

Ques 2: How do I get my Samsung monitor to recognize HDMI?

Ans: Try connecting with a different HDMI cable, ensure the cable is securely inserted at both ends, select the correct HDMI input on the monitor menu, or update your monitor and GPU drivers.

An HDMI repeater can also resolve signal issues.

Ques 3: What cable do I need for HDMI to Samsung monitor?

Ans: Any high-speed HDMI cable like HDMI 2.0 should work for a Samsung monitor.

Use a shorter 3 to 6 ft cable for best signal quality. Cables longer than 10 ft may degrade the HDMI signal.

Ques 4: Why does my Samsung monitor say no signal HDMI?

Ans: A “No Signal” message on a Samsung monitor typically means the HDMI cable is loose or faulty or the monitor’s input setting does not match the HDMI port used from the PC.

Check the cable connections and input source.

Ques 5: How do I reset HDMI ports on a Samsung monitor?

Ans: There is no reset option for the HDMI ports themselves.

You can use the monitor’s menu to reset the display settings to default which may resolve detection issues.

Also, try updating the monitor firmware.


Checking your HDMI cables, connections, input settings, and software updates are the main ways to troubleshoot a Samsung monitor not detecting HDMI correctly.

In most cases, simply replacing an older HDMI cable resolves the issue. Testing with different cables, PCs, and monitors helps isolate the cause.

With the proper troubleshooting steps, you can get your Samsung monitor recognizing HDMI input again.

Useful Troubleshooting Resources:

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Manvendra Singh
Manvendra Singh

Hi, I am John Williams. Editor-in-chief of the website Here I write about PC technology & Guides.