If a monitor displays a “no signal” error, the screen may be powered off or have failed. A few troubleshooting steps can help you solve the issue before replacing parts in your display system.

If you have a monitor that has a “no signal detected” error, there are several ways to fix the issue.

How to Repair 'No Signal' Error on a Monitor

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If your organization does not have an IT staff, you will be responsible for maintaining your PCs. The computer picture is not shown on the monitor if the notice “No input signal” appears on the monitor.

This error might be caused by a number of factors. To troubleshoot it, you must first identify the problematic component, which might be the display’s cords, the monitor itself, or even the computer’s video card.

What is causing the display to show no signals?


  • Your computer may be unable to see the output signal due to a loose HDMI cable (and vice versa).
  • There might possibly be a problem with the display cord.
  • There might potentially be a power issue preventing the display from functioning correctly.
  • The “No Signal on Monitor” problem might mean that your computer monitor isn’t seeing your computer’s graphics output.

How do you fix a monitor that has no signal?

Updated in September 2021:

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Ascertain that the appropriate input source is picked.

  1. Ensure that your computer and display are both switched on.
  2. On the screen’s edge, press the menu button.
  3. Select the appropriate input source under Input Source. Set the Input Source to VGA if you’re connecting the monitor to the VGA port on your computer.

The graphics driver should be updated.

The graphics driver should be updated. manually: You can The graphics driver should be updated. manually by going to the manufacturer’s website and searching for the latest driver for your video card. Be sure to select a driver that is compatible with your Windows system.

Automatically update drivers: If you don’t have the time, patience, or computer skills to manually update your graphics driver, you may use a third-party driver update application to do it for you.

Verify that the graphics card is correctly seated in its slot.

  1. Disconnect all wires (including the power cord) and attached gadgets from your computer once it has been turned off.
  2. Locate the graphics card by opening the computer casing.
  3. Remove the graphics card from the motherboard and secure it in place.
  4. Reconnect the monitor’s power cord and plug it into the computer.
  5. Connect the power cable and turn on the computer after pressing and holding the power switch for 30 seconds to a minute.

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Most Commonly Asked Questions

If your monitor says “NO SIGNAL” or “SELF TEST,” that implies it’s operating but not getting a signal from your computer. First, double-check that the video connection from the computer to the display is correctly attached on both ends.

Check that your display is turned on and plugged in, as well as ensuring the wire from your monitor to your computer is connected on both ends. The monitor should be linked to your video card rather than the HDMI port on your motherboard if you have one.

  1. Turn your computer off.
  2. Reconnect the monitor to the computer by unplugging it and plugging it back in.
  3. Reconnect the monitor and computer monitor cables.
  4. If feasible, replace the monitor with a new one.
  5. Locate the video card by opening the computer chassis.

If your TV or monitor does not display a signal when connected to your computer through HDMI connections, don’t panic. The message “No Signal” indicates that the TV or monitor is not getting an input signal from the source presently chosen.



Watch This Video-

The “windows update monitor no signal 2021” is a problem that can occur with monitors. This article will teach you how to fix the error.

Frequently Asked Questions

How do you fix your monitor when it says no signal?

A: This is a common issue that can occur when there are multiple monitors on your computer, so its hard to say how you would fix this. However, the most likely cause of an unresponsive monitor saying no signal is if another program has obtained exclusive use of one or more portions of your screen and taken over control for themselves.

What does it mean when monitor says no signal?

A: This means that your computer or device is not receiving the signal from the other one, or they are too far apart. It could also mean you are at risk of losing data due to a lack of connectivity. Please make sure both devices have adequate power and WiFi reception.

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