Why does my monitor keep going black for a few seconds?

If you’re working on your computer and your office monitor suddenly goes back, then it can be one of the most frustrating things to figure out. What exactly is causing the monitor to do this, and how do you fix it? Well, those are some of the things that we’re going to look at now.

Although in some cases it is an easy fix to sort this problem out, other times things are a little more complex. However, identifying the main issue at hand is the first thing you need to do in order to sort this problem out. So, lets look at some reasons why your monitor my be going black.

Why does my monitor keep going black for a few seconds?

The main reason that your monitor might be going black for a few seconds is that there’s a problem with the cables connecting it to your computer. This is typically the issue if your monitor goes black for only a few seconds, and then comes back on later.

The first thing you’ll want to do is ensure all of your cables are properly inserted into both the back of your monitor, but also the device that it’s connected to (laptop or computer etc).

You’ll also want to check your plug socket and the plug of the monitor, as any damage to this could also be a source of your problem. After you’ve checked the cables for any damage, in an ideal scenario you’ll also check the monitor with an alternative cable too. If you have another HDMI cable (if that’s what you’re using), then of course you’re going to want to check that with your devices too.

If you have any other ports that you can use on your monitor, then it is worth trying this out as well. It could just be an issue with the ports on your monitor, and it might work if you plug your cable into a different connection port.

Overheated Internals

Although the majority of the time the issue with a monitor is the cables, the next most likely scenario that I’ve found is that you actually have a problem with the monitor itself. It could also be the result of overheated parts in your laptop or computer too, but unfortunately this is difficult to diagnose.

Graphics Drivers

Another possible problem is an issue with your video card drivers. If you think that this might be an issue on your device, then the best thing for you to do is update them. Here is a good guide on how you can easily update your graphics drivers.

Also check

Another thing that you should check is that you don’t have energy saver mode or night mode enabled on your computer or laptop. Although this shouldn’t cause any problems, there are cases of energy saver not working with the monitor itself, which may cause it to intermittently black out.

If you’ve just installed a software on your device and this issue has started to happen, then try uninstalling this too. There are cases of some bad software being the cause of a monitor blacking out as well.


Hopefully you’ve been able to find a simple fix for the issue of your monitor blacking out. Typically it is an issue with the cables attached to the device, but unfortunately this isn’t always the case and it may be more serious than this. If you have another monitor available, then it’s a good idea to check the same device with this too. But if not, it might be time to get a new monitor for your home.

About Alex

Hello, I'm Alex and this is my website, Spacehop. I started the site as a way to talk about myself, and a few years later we're now a team of 6! I still work full time at a major PC retailer in the UK, and I'm a bit of a tech whizz (self-proclaimed, unfortunately!).

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