black screen on the second monitor

Why Second Monitor Is Black? Fixes Guide

There’s one problem that plagues computer users everywhere, the dreaded black screen on a second monitor. If you’re experiencing this issue, there’s no need to panic. in this blog post, we’ll go through a few things you can do to troubleshoot the issue and get your display back up and running in no time. So, if you’re having trouble with your display on a second external monitor, read on to find out how to fix the black screen on the second monitor!

What is a Black Screen on my Second Monitor? What Causes it?

A black screen on a secondary monitor is typically caused by one of two issues: the graphics card or the display. If the graphics card is the problem, then you’ll need to troubleshoot and fix it. If the display is the problem, then there are a few things you can do to try and get your screen resolution back up and running.

Second Monitor is Black: Troubleshooting Methods

The graphic card and display is the only problem to consider which cause the secondary monitor to go black below we’ll discuss the best way to troubleshoot steps of these problems:

1. Graphic Card

Fix 1. Disconnect and Connect the Cables

If the black screen is caused by a graphics card, first try to disconnect and reconnect actual hardware cables. Sometimes when there’s an issue with the graphics card, it can cause a black screen on the monitor as well. If that doesn’t work, you’ll need to take your computer to a repair shop or tech for further diagnosis and repair.

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Fix 2. Check the Power

Make sure the power button is turned on to the monitor. Sometimes when there’s an issue with the graphics card, it can cause the screen to go black.

Fix 3. Check the Monitor Cable

If you’re experiencing a black screen on the 2nd monitor, make sure the video port cable is not loose. Check that all cables are secure and connect power options properly to both monitors. If there’s an issue with your graphics card or secondary or primary display, it can cause a black screen on the second dual monitor

Fix 4. Update the Computer’s Display Drivers

Update the drivers from the manufacturer if you have a third-party discrete graphics card. Visit the motherboard or computer manufacturer’s website to see if there are any updated drivers for those capabilities if you plug the monitor into the motherboard’s display adapter connectors.

2. Display

Fix 1. Check Display Source and Resolution

Increasing the screen’s resolution may cause it to go black in certain circumstances. If the black screen is caused by a resolution issue, you may be able to fix it by changing the monitor source. You can also try using a different power cable or video adapter.

Fix 2. Check Display Settings

If the black screen is only appearing on one monitor display and not both, check your secondary display settings to make sure they’re correct input. Make sure there’s nothing blocking graphics from displaying properly on the screen and that your monitors are connected to the graphics driver card.

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Fix 3. Check Display Cable Connection and Adapter or Monitor Input

If the black screen on the second original monitor is only appearing when you plug a cable into the second monitor ports video cable input, try connecting your monitors with different cables instead of using adapters; this can help resolve some issues with displays that are not connected properly to the graphics card and allow them to work correctly.

Fix 4. Adjust the Monitor’s Refresh Rate

If you’re experiencing black screens on both monitors, it may be necessary to adjust the monitor setting refresh rate. This can be done by going into your display settings and changing the resolution or refresh rate.


What happens when you try to boot up your computer with a second monitor?

If you have a second monitor, and it’s not connected to the computer properly, when you try to boot up your computer, it may show a black screen.

How do I reset my laptop when the screen is black?

If your laptop screen goes completely black, you may be able to reset it by doing a hard reboot to your primary monitor. To do this: Shut down the computer. Remove all removable media (hard drive, flash drives, etc.). Turn off the computer and wait at least ten seconds before turning it on again. Then turn on the computer by pressing any key other than “start.” When asked if you want to start up in safe mode or regular sleep mode, choose the regular mode.


When one of your monitors goes black, it can be quite frustrating. In this blog, we will be addressing the common causes and methods of fixing a black screen on your second monitor. Additionally, we will also discuss how to troubleshoot when the second monitor goes black. Hope you find this post helpful.

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