PC every now and then monitor goes black

PC every now and then monitor goes black

This can have multiple causes, with the issue most likely being your monitor, the cable from the monitor to the pc, or your video card’s drivers.

Easiest to check would be the VGA/HDMI/DVI-cable from your monitor to your pc. You can try a different cable, maybe lend one from another screen? Also, make sure the current cable is plugged in all the way at both ends.

Some monitors even have 2 ports, one for HDMI and one for VGA. If swapping out the cable doesn’t work, try using the other port (you’ll need a different cable though, but they cost about 2 euros).

If both solutions don’t work (or you don’t have a spare cable nearby) you can try updating the drivers of your graphics card.

Sometimes they get corrupted (by whatever reason the mighty gods of Hardware Failure might come up with) which you can fix by updating them.

PC every now and then monitor goes black

Find out what kind of graphics card or onboard chip you have, then go to the manufacturer’s website and download new drivers.

If you have an onboard chip, you have to download them from the website of the manufacturer of your motherboard.

This can all be found in manuals, or, assuming you have Windows, by typing in Dxdiag in the search bar of your start menu.

A screen will pop up with a few tabs at the top. If you press the tab that says the display, you will get something that looks like this:

PC every now and then monitor goes black
PC every now and then monitor goes black

There you can find the manufacturer, and the type of video card you have (in this case a GeForce 9800GT).

If the 3 solutions above still don’t work, I’m afraid the problem is inside your monitor. The only way to fix it will be to buy a new one.

Your graphics card will probably not be the problem unless you’ve had artifacts in your screen since a while before the monitor going black (like in the pic below)

PC every now and then monitor goes black
PC every now and then monitor goes black

What a lot of people here aren’t mentioning is that you may have had a driver crash.

This sort of issue seems to be occurring with the AMD R9 series card a fair bit often after the computer goes to sleep.

Why not have a look at your Event Viewer logs in Win 10, at the time of the problem to see if there are any software errors.

Permanently black ? Or just Black momentarily ?

Why are you powering on the monitor at the same time ? You should power the monitor on at least 10s before powering up the “GPU”.

Modern monitors have many ports they must “poll” until they find a signal, and they also exchange data (EDID) the the computer.

Having said that, the monitor could genuinely be on the way out. If this was the case it would not just be at startup. A display port connection should be the most reliable. The GPU could be suffering from “brown outs” during startup as well.

So ..

  • try another port.
  • try another monitor.
  • swap out the power supply.
  • try another GPU.

If the screen goes black, always check the HDMI cables by tightening them or see if nothing is disturbing it. After you’ve check the cable, if the computer still blacks out, there might be a problem inside the computer.

You may need to go into safe mode (which windows recommend you) to fix the problem. There are different safe modes that you can enter on. You can also use the internet on another device to search up the problem and fix it.

If all of that doesn’t work, then I’m afraid that the computer needs to be replaced or the HDMI cable has to be replaced. But before that, contact your computer manufacturer to see if they can fix the problem.


I cleaned my gpu really good and applied new thermal paste and so far so good I noticed after mine shutdown I opened her up and my graphics card was stupid hot so I did above and no issues so far.

The back light in the screen is probably starting to fail. This is especially likely if it’s a CCFL (fluorescent tube light) backlit screen, which has a tiny fluorescent tube lamp in it which lights up the screen.

It is technically possible to replace the back light in a monitor, but it’s not usually worth the effort especially if it’s an older or smaller monitor.

A new fluorescent tube “light bulb” is only about $10 on eBay, but they’re a royal pain to replace and the tubes themselves are extremely fragile and contain toxic substances (it’s a 1/8th-inch diameter hollow glass tube filled with mercury vapor).

If you determine that the back-light of the monitor is causing the issue, I would recommend just buying a new monitor – and make sure you get one with an LED back-light, since LEDs last much longer than CFL bulbs.

How do I fix a black screen while playing games in Windows 10?

If your screen goes black each and every time you start playing a new game you can try following troubleshooting methods to fix this issue:

1. Apply latest Windows 10 updates

If you get the black screen while playing games, it might be because of an pending update. The update itself can cause the issues or certain outdated software might be the reason for this behavior.

Either way, before doing anything else make sure your system is running on the latest Windows 10 build:

  1. On your computer press the Win+I hotkeys.
  2. This will bring System Settings on your PC
  3. From there click on Update & Security.
  4. Under Windows Update (located in the left panel of the main window) make sure that there isn’t an update waiting for your approval.
  5. If it is, apply the available updates and restart your computer.
  6. Try to play your games now and verify if the black screen problem persists or not.

2. Update graphics drivers

The black screen might be caused by an outdated graphic driver or by a corrupted graphic driver file. If that’s the case, then you can fix this problem by updating your drivers:

  1. On your computer right-click on the Windows start icon.
  2. From the list that will be displayed click on the Device Manager entry.
  3. Now, from Device Manage find your graphic drivers.
  4. Right-click on your drivers and select ‘update’.
  5. Restart your system in the end.

3. Manually reinstall the drivers

In some situations automatically update your graphic drivers still leaves the corrupted files unresolved. Well, for resolving this particular problem, manually reinstall the drivers on your PC:

  1. Access Device Manager again.
  2. Access your graphic drivers and right-click on each entry.
  3. This time select ‘uninstall’.
  4. Next, access Control Panel – right-click on the Windows Start icon and select ‘Control Panel’.
  5. In Control Panel switch to Category and click on Uninstall, under Programs.
  6. Find any associated entry with your graphic card and uninstall these programs.
  7. When done, restart your Windows 10 system.
  8. Now, access your manufacturer’s official web page, download the latest version of the graphic drivers that are compatible with your Windows 10 device, and follow on-screen prompts for completing the installation process.

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