Written by Richard

How do I solve the 'no input' message from my monitor?

Have you bought a new monitor, but the screen stays black and you get a 'no signal' message when booting? In that case, there's something wrong with the connection between your computer and monitor. Since you won't exactly know what's causing it, you could test different cables, devices, and your graphics card, to rule out possible causes and find out where the problem lies. On top of that, you'll be able to quickly solve it. Follow these 3 tips to restore the signal to your screen.

What do you need?

  • Your new monitor,
  • A video cable,
  • Your monitor's power cord,
  • PC connected to a power socket,
  • Optional: another computer or game console.

We'll assume that your computer's switched on, connected to AC power, and that you're using a suitable video cable. Unfamiliar with the different types of video cables?

Tip 1: Check your video cable

Monitor laptop video cable

First you check whether the video cable or the connector of your monitor and computer are functioning properly. If one of these components is broken or malfunctioning, it causes the 'no signal' message on your screen. Always make sure you use high-quality cables, so you'll know that your image signal is constantly transmitted. Complete the following steps in this order:

  1. Insert the connectors of your video cable into the ports of your monitor and your computer and press firmly. A connector that's slightly off can cause a black screen.
  2. Wait 10 seconds and move your mouse and press some buttons on your keyboard. This way, you'll wake up your computer so that it sends a video signal.
  3. Is your monitor not showing an image? Use a different video cable of the same type.
  4. Still not sending a signal to your screen? Use a different type of cable. Most monitors have multiple connectors. Did you use an HDMI cable in steps 1 to 3? Use a different one, such as DisplayPort.
  5. Both your computer and monitor sometimes have multiple ports of the same type. Connect the cables to different ports.
  6. Is your monitor still showing the 'no signal' message? Go to tip 2.

Tip 2: Check and update your video card

Check and update your video card

Now we know that the problem is not in the cables. Now we're going to see if the problem is in your computer's graphics card. The graphics card processes the image.

Testing another monitor

  1. Grab a different monitor that you know is working and connect it.
  2. Does this monitor work? In that case, the software on your video card is probably outdated, so it doesn't work with your new monitor.

Updating the video card

Before you update the software on your video card, it's wise to delete any old drivers. That way, you'll start with a clean slate. After uninstalling them, your video card will still work properly.

  1. Click on the Windows start button, type in 'Device Manager' and open this screen.
  2. Select 'Display adapters'. You'll now see your graphics card in the list. It's usually from Intel, NVIDIA, or AMD.
  3. Right-click on your graphics card and then click on 'Properties'.
  4. Click on the drivers tab and click on the 'Uninstall' button.
  5. After uninstalling, install the new updates for your video card. Visit the website of the manufacturer of your video card and download the software: NVIDIA, AMD, or Intel.
  6. The software automatically recognizes your video card and searches for the latest drivers. During installation, your PC will restart a number of times.

Testing the video card

  1. Once all updates are installed, properly and securely connect your monitor with a video cable.
  2. Move your mouse or tap some letters on your keyboard.
  3. Is your monitor still not showing any picture? Go to tip 3.

Tip 3: Connect another computer or device

Monitor no input to connect another device PC

Now we know that the problem doesn't lie with your video card. Now we'll check whether there's a defect in your monitor. You can test this by connecting different devices to your monitor.

  1. Grab a different computer or laptop, connect it to AC power, and connect a suitable video cable. A game console, DVD or Blu-ray player can also be used to test your monitor.
  2. Wait 10 seconds, then move the mouse or tap some letters on your keyboard. Press a few buttons on your controller if you're using a game console.
  3. Is your computer not sending a signal to your screen? Then there's probably something wrong with your monitor.

Is it not working?

Were you unable to get your screen to work, and are you still getting a black screen or a 'no input' message? Contact Customer Service to see what we can do for you.

Article by:
Richard Monitor Expert.

© 1999 - 2020 - Coolblue B.V.
Customer rating: 9.2 / 10 - 20,173 reviews