This is typically the issue if your monitor goes black for only a few seconds, and then comes back on later. 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. There could be something else causing the issue, and here are a few of the other things which may be causing the problem. It could also be the result of overheated parts in your laptop or computer too, but unfortunately this is difficult to diagnose.
An overheating monitor can be a result of a few things, with the main cause being a lack of ventilation to the components inside. So, make sure that you give the monitor a thorough clean before you start it up again. If you give it a few hours to cool down and then restart your computer, it should work as normal.
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. The question is, is the problem trivial or serious? Often, the culprit is a loose or broken cable — an easy fix. You can diagnose many of these problems yourself with a little time and patience.
Despite their sophistication, computer components don't last forever and are prone to unexpected failure. Your monitor may have suffered a short circuit, or simply died from an internal defect. The video card inside your computer tower heats up as it operates, which can cause damage if the temperature climbs too high.
Connect a different monitor to your computer to check for a picture; if you get one, it might mean your previous monitor has gone belly up.
If the new monitor still shows nothing but inky blackness, your computer's video card may have failed. All the components inside your computer generate heat as they operate, which can cause the internal temperature to climb to component-damaging levels if the computer's not properly ventilated. Small plastic fans are installed in all computers to help vent this heat before disaster strikes, but if they or the nearby case vents are caked with dust, lint and pet hair, that hot air inside your tower has nowhere to go.
An overheating system typically displays warning signs such as frequent lock-ups, random shutdowns and loss of video. The Device Manager window should appear; look for "Display adapter" and click it. Your video card name and model number should be listed there. Use the monitor as you would normally after updating the driver to see if that fixes the problem. If it still doesn't work, proceed to the next step. If you have tried all of the above steps, you have eliminated the majority of issues that can cause a monitor to go blank.
At this point you will want to determine if the computer or video card is causing issues with your monitor. To test this theory, reattach the monitor to another computer to see if it works properly. In that case you will need to try another video card to see if that resolves the problem. If you've made it this far in the process of elimination, then most likely the problem is with the monitor itself.
In that case I suggest you try another second LCD monitor to see if that fixes your issue. If you have no issues with the second monitor then the first monitor is most likely bad. To verify that theory we once again use process of elimination. To do so, try the first monitor on another PC and see if you have issues on that system as well. If no issues then your first monitor is most likely somehow incompatible with your original first PC.
For example: a few years ago I had a monitor that kept turning off sporadically. Over time, the problem got worse, to the point where the monitor kept turning off and staying off with nothing but a black screen. I verified this by using the monitor on another computer only to get the exact same result. I managed to fix the LCD monitor by soldering new capacitors onto the power supply of the monitor located inside the monitor. You can watch a video on Youtube on how to replace capacitors on an LCD monitor if you are technically inclined.
For most folks, however, taking apart a monitor and soldering on new capacitors simply won't be possible. Keep in mind if you purchase an older, used monitor, you may encounter the same problem down the road. If you do purchase a new monitor, I suggest spending a little extra and get one with a good brand name.
Based on my experience, Samsung makes excellent monitors ; they use premium parts including premium capacitors , which should guarantee a long life ahead. I still have one Samsung LCD monitor from and it's still going strong. My suggestion is that you re-read the article from start to finish and try all the steps I just mentioned using process of elimination. Start with the cable: make sure it's tight and hooked in properly to both the PC and monitor.
If it still doesn't work, then replace the cable using another brand and repeat. If that still doesn't work then try another monitor. Eventually you'll figure out it's either the cable, video card, monitor, or possibly the computer that is the problem.
I kindly ask at this point please do not email me "What do I do next? On the other hand if you have a separate computer question you'd like to ask me, then follow through to the next paragraph. I need more computer questions. If you have a computer question -- or even a computer problem that needs fixing -- please email me with your question so that I can write more articles like this one.
I can't promise I'll respond to all the messages I receive depending on the volume , but I'll do my best. About the author: Dennis Faas is the owner and operator of Infopackets. With over 30 years of computing experience, Dennis' areas of expertise are a broad range and include PC hardware, Microsoft Windows, Linux, network administration, and virtualization.
For technical support inquiries, Dennis can be reached via Live chat online this site using the Zopim Chat service currently located at the bottom left of the screen ; optionally, you can contact Dennis through the website contact form. Sometimes the monitor will not show any display right from the start, sometimes it may work for months and then suddenly start with black screens. Most of the time it is a random issue and owners fix it by repeated shutdowns and restarts till the screen shows.
This is caused by the display driver stopping and starting - particularly with AMD cards on Windows Try reinstalling the display drivers - for AMD you need to make sure all the old drivers have been removed - then do a new install. I have this problem too, and I know it's not a cable or monitor problem, since I have two fairly new monitors connected to the computer. This started happening shortly after upgrading to Windows I have upgraded both my video card and memory, which I thought would fix it.
I have a brand new monitor and was having this problem. I borrowed a "larger" HDMI cable and that seems to have solved my problem. Question is: I don't need a 6 ft cable and would like to buy a shorter 3 ft? Why do you recommend a longer cable? Will a 3 ft work?
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