When you see the error “DisplayPort No Signal”, it’s very likely due to a hardware issue. However, there can be some other reasons causing the DisplayPort signal to be not detected. Now, let’s take a look at the tips below and see what we can do to resolve it.

  1. Check the DisplayPort connection
  2. Update your graphics driver
  3. Test connection with another cable or device

Before we start troubleshooting, please restart your computer and your monitor to flush the buffer or fix any random bug. After that, follow the steps below.

1. Check the DisplayPort connection

A loose connection can be another reason why you get the DisplayPort no signal issue. You have to ensure that the DP cable has been plugged in correctly and tightly. Now, try to give your DisplayPort connection a little bit push and see if the signal is detected. If this is not the reason why you get the no signal error, read on to the next fix.

2. Update your graphics driver

When the DisplayPort no signal issue occurs, one of the first things you should do is to update your graphics card driver, since an up-to-date graphics driver always ensures the best performance and fewer bugs.

To update your display card driver, here’s what you can do (please note that the following screenshots are taken on Windows 11, but the instructions work on Windows 10 as well):

  1. On your keyboard, press the Windows key and X at the same time, select Device Manager.
  2. Double-click to expand the category Display adapters. Then right-click your graphic card driver and click Update driver (the name of the device can be different on your computer).
  3. Then click Search automatically for updated driver software.
  4. Wait for Windows to find the latest driver available for you.
  5. When the driver update is done, restart your computer for the change to take effect.
  6. Then check and see if the problem is fixed.

If Windows says that it’s already found the latest driver for you, so no newer drivers are found, then you should consider updating your graphics driver in a different way with the help of Driver Techie.

Its ever-growing driver database allows you to always have access to the latest device drivers that you need. More importantly, Driver Techie simplifies the driver update process, so all it takes is just 3 clicks (for Pro users), and all your drivers are updated.

To use Driver Techie to find you the latest drivers:

  1. Download and install Driver Techie, then launch it.
  2. Click Scan Now.
  3. After the scan, select all the drivers you need to update and click Update All. Then all your drivers will be updated automatically without you having to do anything else.

Please note that Update All is available for Pro subscribers only, otherwise, you can only manually update the driver one at a time. To see how to manually update the drivers one by one, please check this post.

If you’re a Pro user of Driver Techie, and need our technical support to help with the DisplayPort no signal problem, please feel free to contact <support@drivertechie.com>.

3. Test connection with another cable or device

In this situation, you’re highly likely to be dealing with a hardware problem or component issue. To sort out the real reason, you can test the Displayport connection with another cable or device. Follow the steps below:

  1. Replace your cable with a brand new one and connect your computer and your monitor. If this works, then the malfunctioned DP cable is the culprit of the issue. If the issue persists, do the second test.
  2. If you have or can borrow another monitor that is working fine, connect it to your computer with a DP cable. If the signal is detected and the problem is solved, then there must be a hardware issue in your monitor. You have no choice but to get it repaired or replaced. If the issue persists, then it’s your computer that goes wrong. Do the final test to verify this.
  3. Use another computer to test the connection. If everything goes back to normal, then we get the final result. In this case, you’ll have to get assistance from your computer’s manufacturer to see what exactly is causing this no signal issue. Presumably, it can be a damaged port, a loose or broken display card, a damaged card slot, etc.

At the end of today’s post, we hope you get the DisplayPort no issue error resolved. If you have any ideas, feel free to comment down below. If you’re a Pro user of Driver Techie and need our technical support, please feel free to contact <support@drivertechie.com>.