Dell monitor has no HDMI signal [Fix]

If you are experiencing HDMI signal issues when using a Dell monitor, this guide will help you resolve it. Connecting an external monitor to a laptop via an HDMI cable or connecting a monitor to the CPU are both common operations. Dell has always been known for its great monitors. However, sometimes users may face some issues that are easy to resolve. To resolve HDMI signal issues on your Dell monitor, follow the steps below.

Why does my Dell monitor show no HDMI?

If you don't see an HDMI error message on your Dell monitor, it may be because the HDMI cable is not connected correctly, has a faulty cable, or does not match. Please make sure to use a properly working HDMI cable and select the input source as HDMI after connecting to the Dell monitor.

Dell monitor has no HDMI signal [Fixed]

When you see the Device No HDMI Signal error on your Dell monitor, you can fix it with the following methods.

Check if the connection is loose

Make sure the HDMI cable is working properly

Make sure the correct input source is selected

Run built-in diagnostics

Transparent CMOS battery

Contact Dell Service Center

Let’s dive into the details of each method.

1] Check whether the connection is loose

When we face the problem of monitor showing no signal, the first step is to confirm whether the cable connection is firm and correct. Loose connections can cause interruptions in signal transmission, resulting in a No Signal error. Please make sure the HDMI cable is properly connected to your computer and monitor and check again.

2] Make sure the HDMI cable is working properly

You will see this error if the HDMI cable you are using to connect your monitor is faulty. Physically inspect the HDMI cable for damage, making sure both ends of the cable are clean and there is no dust or debris inside the socket. After making sure everything is fine with the cable, swap the two sides of the cable to see if it works. If you have a spare HDMI cable, connect it with that cable to see if the problem is with the HDMI cable, the monitor, or the CPU.

In addition to checking the cables, make sure the HDMI ports on your PC and Dell monitor don't have any damage or dust that would prevent a proper connection.

3] Make sure you select the correct input source

If you use a VGA cable, treat it as an HDMI cable or vice versa, and select a different input source than the cable, you will not see the signal error.

Make sure you have connected the HDMI cable and selected the input source as HDMI in the monitor settings.

4]Run built-in diagnostics

If there are no issues with the cables, ports, and input sources, but you are still seeing a No Signal error, you must run the built-in diagnostics on your Dell monitor. Before running the built-in diagnostics, you need to disconnect the HDMI cable or any other display cables on your monitor.

To run the built-in diagnostics on your Dell monitor, please

• Clean the screen and make sure there is no dust on the screen
• Turn on the monitor, but unplug the video cable. The monitor will now enter self-test mode.
• Press and hold button 1 on the front panel of the monitor for 5 seconds. It will trigger a gray screen. Watch the screen correctly.
• Press button 1 again. It changes the screen color to red. Repeat the above steps to see green, blue, black, white and text screens.
• After entering the text interface, press 1 to exit. If you don't notice anything wrong with your screen, the problem is with the cable or your computer.

5]Clean CMOS battery

Clearing the CMOS battery can sometimes resolve HDMI issues. You need to be very careful when cleaning CMOS batteries. If you don't know anything about computer hardware, it's better to leave it to professionals who can easily repair it without damaging your computer.

Contact Dell Service Center

If the problem is not resolved, you need to contact Dell Service Center and they can help you solve the problem. If there are any hardware issues that need to be resolved, they will take care of it for you. You can find your nearest service center on the Dell support page.

Also Read: Fix Input Signal Out of Range, Change Settings Monitor Error

Why is my monitor showing no HDMI signal from your device?

When an HDMI cable fails, you don't see the device on your monitor. Error HDMI signal, or the port on your monitor or computer is faulty, or you connected the wrong cable and selected the HDMI input source, or the connection is loose. etc. may cause problems.

Related read: PC Monitor turns off after a few minutes randomly

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