Second Monitor Detected But Not Displaying (Quick Fix)

Somehow, you second monitor is connected but not detected by your computer. This issue is very common.

In this article, we’ll discuss about the issue of Second Monitor Detected But Not Displaying.

Monitors are the gateway to personal computers. Without a Monitor, you are unable to see what’s going on. But the monitors have changed since their debut.

So much so that nowadays, we use more than one. Many users feel it is not enough to screen real estate. So, as the need for screen real estate grew, so grew the need to connect more than one monitor.

The process of connecting two monitors is pretty straightforward and magical due to cleaver Engineering.

Second Monitor Detected But Not Displaying (Quick Fix)

Monitors and the connectors to connect are also relatively standardized. So, they are quite inter-compatible and almost plug-and-play.

Despite these features and Engineering, sometimes errors happen, and the computer or laptop you are using just straight up denies working.

Luckily some steps can be followed to solve this issue. So, keep reading as we explore how you can fix this issue.

How To Fix Second Monitor Detected But Not Displaying Issue (Guide)

1. Check The Connections

One of the first steps and first things to do is to check if your monitor is connected properly. So, we have to check if everything is plugged in properly.

Sometimes you might not have plugged in the connector at your end, and the monitor’s connector might also become loose. Both can also happen at the same time. 

Second Monitor Detected But Not Displaying (Quick Fix)

Another thing to check is if the cables are plugged in the right ends, as some cables can be omnidirectional. So, if the cables are not connected to the proper ends, this won’t work.

Incase if your monitor supports higher refresh rates then make sure to use right cable connection for it.

Also, check if there is any visible damage in the cable, as these damages can hinder the functionality of your cable and end up causing these errors. So, check these aspects before cursing your monitor.

2. Check The Power Cable

This might sound very easy and simple might sound like a simple thing, but you might be surprised to know how many people face this issue every day.

Make sure that you will not getting input signal out of range issue.

We set up everything properly. We focus on every tiny detail and execute them perfectly, but we forget to turn on the switch and freak out about what we did wrong.

So, before you freak out and throw your computer, it would be a great idea to check out if you actually have turned on the switch.

Second Monitor Detected But Not Displaying (Quick Fix)

Another thing you should remember is to make sure the Monitor itself is turned on. Sometimes you need to press a button to turn on a computer.

So, make sure that is also before you burst into rage and destroy everything around you.

3. Check Monitor Configuration

The Software and the OS determine what your Display shows. Most of the time, you plug in, and it is good to go. But, sometimes, there could be some issues.

So, it is pretty important to check what the issue is. One of the issues that can take place is that your Monitor might have been detected by the computer, but your computer decides to not show anything on this. If this is the issue, it is a very easy fix. 

This issue can be fixed by going to the Display Manager. In Windows, you can simply press Windows Key + P to bring up a project menu, and you can set what the second monitor does there.

In Windows, you can navigate to  System Preferences > Display > Arrangement Tab to set how the second display behaves; for Linux, you can go to Display Manager to set it up.

Second Monitor Detected But Not Displaying (Quick Fix)

4. Check Compatibility

If you have mismatched hardware where one is brand new, and one is very old or vice versa, you can run into some problems. Your Drivers might not be updated, or if the gap is a big one, your devices might not support another one. 

Another thing is if you have compatible devices, but if you get a bad cable that is not compatible. This can happen if you have devices that have DisplayPort 2, but your cables are not up to the mark.

So, when you are stuck and need to figure out what is wrong, you can look into what is wrong with the cable. To check, you can check the writing on the cable or search for the numbers on the cables.

respective websites or user manuals to see which versions of HDMI, DVI or DisplayPort your devices use.

5. Restart The Monitor

This step might sound cliche, but you might be surprised by how often this method works. Just like you function a lot better after sleep, our devices sometimes automatically fix the problems by themselves with a restart or with a power off.

To do this, unplug and replug your monitor and restart your device. After this is on again, replug the Display and see if this is working.

You can also unplug everything after it shuts down, and you can plug them back again. Sometimes this trick seems to work and fixes your device automatically.

So, this method is very easy and worth a try. So, consider this option when you are stuck and can’t figure out what possibly went wrong.

6. Give A Troubleshoot

If none works, you can try some uncommon fixes and see if they do the trick. You can update the firmware of your display; you can also try updating the drivers to see if that fixes this error. 

If you use a dock or run using USB -C, make sure your port supports that standard and can actually transmit a display signal.

However, if these troubleshoot are not able to fix the issues then the problem may lies in hardware and you need to change your monitor. In that case, you can checkout our guide on white gaming monitors and Best Portable Monitor For Macbook Pro.


To conclude, this error of Second Monitor Detected But Not Displaying is quite common and, frankly, quite annoying. Sometimes this happens at the worst times and makes your job very hard.

But thankfully, it is quite easy to fix. So, I hope these methods helped you get rid of this issue, and you can access your Monitor again.

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