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HP Monitor DisplayPort Not Working

A DisplayPort is one way to connect an HP monitor to a device such as a computer or a gaming console. Typically, it will work straight away as soon as you plug it in but in some cases there can be one or a number of issues that cause it not to work. Today, I will explain how to troubleshoot your HP monitor when the DisplayPort is not working.

As a general rule, unplug your HP monitor from the Displayport on your computer, then unplug your HP monitor from the wall. Restart your computer or other device you are using. Wait for your computer to restart, and then plug your HP monitor back into the power and your computer.

Black Monitor on the desk

In most cases, this will fix the issue. However, if it’s still not working there are a few reasons why this can be happening. Below, I will cover each of these in detail so you can get your HP monitor to work when it’s connected using a DisplayPort cable.

HP Monitor DisplayPort Not Working

There are multiple ways to connect an HP monitor to a computer. DisplayPorts are a newer technology that came out after HDMI, but like all electronics they can have issues that will cause them not to work. Here is what you should do to get it to work first followed by additional steps to do when your HP monitor is not displaying when it’s connected via the DisplayPort.

As a general rule, unplug your HP monitor from everything and restart your computer. After it has restarted plug your HP monitor back into your computer and the power. If that doesn’t fix it, check the signal on your HP monitor is on DisplayPort and not HDMI. Then do the steps below.

It’s difficult to know ahead of time why an HP monitor is not displaying when it’s connected using a DisplayPort cable. Therefore, it’s necessary to try a few steps until it starts working. Here are the troubleshooting steps to do to get your DisplayPort to work.

1. Check the DisplayPort cable

It’s common for the cables to be slightly loose. Unplug both ends of the DisplayPort cable and plug them back in. HP recommends trying a different DisplayPort cable if you have one, as well as, trying the DisplayPort cable on a different monitor.

This will tell you if the DisplayPort cable is faulty. If you don’t have spare cables, or another monitor that supports a display cable then do the other steps below. If it’s still not working after trying all of these steps then buy another DisplayPort cable, and try that.

2. Update the video and audio drivers

Drivers are responsible for the operating system on your computer, such as Windows, communicating with the hardware components such as the DisplayPort, USB ports, and HDMI port. If the drivers have not been updated it can cause a glitch to occur, and the DisplayPort will not work.

The driver you want to update is the DisplayPort and your graphics card. These will be listed in the Device Manager. The graphics card is located in the ‘Display adapters’ and you need to click it to see the graphics card.

If you can’t open the Device Manager using the instructions in the video there are a few different ways to access it. These differ based on the version of Windows you have, and the unique display settings you have in Windows. You will be able to find how to open the Device Manager for your version of Windows with a Google Search.

Typically, you can press the start button on your keyboard or click on the Windows icon at the very bottom of the screen and then type ‘device manager’ and it will show up. After that see if your HP monitor is now working with your DisplayPort cable.

3. If using an adapter unplug this and test it

It’s possible to plug an adapter into the DisplayPort connection that can be used to turn a DisplayPort into an HDMI connection. The adapter itself can have an issue. So, unplug the adapter and plug the DisplayPort directly into your HP monitor.

If it now works, then you can be sure it’s an issue with the adapter. The other issue is that your HP monitor can be set to DisplayPort.

But, because you’re using an adapter to change it to an HDMI connection it won’t display. In that case your HP monitor will need to be changed to display HDMI1, or HDMI2 rather than DisplayPort.

4. For a laptop make sure it’s set to send the signal to the HP monitor

It’s possible to have two screens when you’re using a laptop. However, this needs to be specified in the Windows settings. If you are using a desktop computer then skip this step.

By default a laptop will only display what is on the laptop screen even if an external monitor is plugged in. It needs to be manually changed in the Windows settings. For Windows 10 refer to the steps below, otherwise do a Google search for how to use an external monitor with your version of Windows.

For example, ‘how to use an external monitor on a laptop on Windows 7’.

For Windows 10:

  1. Click on the speech bubble icon at the bottom right hand side of the screen
  2. Click on ‘Project’
  3. Change it to anything other than ‘PC Screen Only’ depending on how you want it to display.

5. Make sure plugged into the DisplayPort not on the graphics card

Computers can have two different graphics card set ups. The graphics card is responsible for sending the video signal from a computer to the monitor. A computer can have a dedicated graphics card or an onboard graphics card.

It’s common for a computer to have both. When this is the case there will be two DisplayPorts at the back of your computer. If your computer has both a dedicated graphics card and an onboard graphics card the onboard graphics card will be disabled. The reason is a computer can only use one graphics card at once.

Copyright protected content owner: ReadyToDIY.com and was initially posted on 2022-10-05.

Therefore, see what port you’ve plugged the DisplayPort into. If there is another DisplayPort plug the DisplayPort cable into that instead. Then see if the HP monitor is now displaying.

HP Monitor DisplayPort No Signal

Black Monitor on the desk

If an HP monitor is working correctly when there is no video signal it will say this on the screen. After some time your HP monitor will go into standby mode. If your HP monitor says no signal even though it’s plugged into the DisplayPort, here’s the troubleshooting steps you should do.

In general, start by checking the HP monitor is on the right signal channel. It may be set to HDMI1, or HDMI2, instead of DisplayPort. This can be adjusted using the buttons on your HP monitor. If it still won’t work refer to the troubleshooting steps below.

Restart your HP monitor and your computer. To restart your HP monitor unplug it at the wall. When you do so, also unplug the DisplayPort cable that goes from your HP monitor to your computer until your computer has restarted.

Once your computer has restarted plug your HP monitor back into the power, and into your computer. Then test to see if it’s working. If not there are 5 troubleshooting steps explained at the start of this article. Start with step 1 which is checking the DisplayPort cable, and work your way through each of the steps.

Copyright article owner is ReadyToDiy.com for this article. This post was first published on 2022-10-05.

HP Monitor Not Recognizing DisplayPort

Black Monitor on the desk

If the DisplayPort is plugged in correctly to your HP monitor then it should start displaying. However, there are a few issues that can cause an HP monitor to not show anything when it’s plugged into a computer using a DisplayPort cable. This is what causes this to happen and how to get your HP monitor to work when it’s connected over DisplayPort.

In general, ensure the channel your HP monitor is on is DisplayPort, and not something else such as HDMI1, HDMI2, or VGA. If it still won’t recognize the DisplayPort connection, then unplug the power and cable from your HP monitor, wait 30 seconds and plug everything back in again.

This should fix it in most cases. However, if it’s still not working then refer to the 5 steps near the top of this article.

Do each of them one by one. If it’s still not working then contact HP Support as the monitor likely has a fault.

HP Monitor DisplayPort to HDMI Not Working

Black Monitor on the desk

There are adapters that will convert a DisplayPort connection into an HDMI connection. An HDMI cable is plugged into these and then the HDMI cable is plugged into a monitor. Even though everything is plugged in correctly an HP monitor can still not display, so here’s how to fix an HP monitor that is not working using a DisplayPort to HDMI adapter.

As a general rule, ensure your HP monitor is set to the HDMI port it’s plugged into such as HDMI1, or HDMI2 using the buttons on your HP monitor. Following that, reset your HP monitor, and your computer and see if it’s now working. If not, refer to the steps below.

Unplug the DisplayPort to HDMI adapter and plug your HP monitor using the DisplayPort cable. If it now works then the issue is either with the adapter or the HDMI cable. If you have another HDMI cable try that, because it’s possible the HDMI cable is faulty.

Otherwise, refer to the 5 steps near the top of this article and do them each one by one. If you have already done any of the steps then skip them.

HP Monitor No Sound DisplayPort

Black Monitor on the desk

DisplayPorts like HDMI cables can send both the video signal and audio signal from your computer. If no sound is going to your HP monitor from your computer, this is how to get it to work.

Overall, the audio settings on your computer need to be changed so that it’s set to your HP monitor, or the audio drivers need to be updated. However, if it’s still not working after doing that then your computer does not support audio over DisplayPort, use an HDMI cable instead.

Not all computers support an audio signal over DisplayPort. The audio settings to change can be accessed on a Windows computer by opening the start menu, and typing in audio settings. Click on ‘Audio Settings’.

It will show a list of the audio devices. Change it from whatever it’s set to, to your HP monitor. For example, it can be set to your headphones, or the computer speakers.

And it needs to be changed to send the audio output to your monitor. For Mac computers go to:

Settings > Sound > Output

Then change the output to your HP monitor.

In general, first unplug your HP monitor from your computer and then unplug your HP monitor from the wall outlet. After that restart your computer, and once your computer has restarted plug your HP monitor back into the wall outlet and your computer. If it’s still not working do the steps below.

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ReadyToDIY is the owner of this article. This post was published on 2022-10-05.

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