Why does my monitor go black for a second?

The main reason that your monitor is going black for a few seconds is that there’s a problem with the cables connecting it to your computer. … 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.

Why does my monitor go black randomly?

Bad PSU: The Power Supply Unit is known to be the most common culprit of making your monitor go black. … Video cable: The video cable whether is an HDMI or VGA connecting the monitor to your PC might be broken or damaged. This will usually cause a black screen when it is touched or randomly as well.

How do I fix a black screen every few seconds?

Simultaneously press the Windows logo key + Ctrl + Shift + B. If Windows is responsive, a short beep will sound and the screen will blink or dim while Windows attempts to refresh the screen. If this does not work, please go on to the second solution.

Why does my second monitor keep turning off?

Video card or motherboard problem

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If the monitor stays on, but you lose the video signal, it’s very likely an issue with the video card or motherboard in the computer. A computer randomly shutting off can also be an issue with the computer or video card overheating or a defect with the video card.

How do I fix my random black screen?

Troubleshoot black screen using clean boot

  1. Open Start.
  2. Search for msconfig, select the System Configuration item in the result to open the experience.
  3. Click the Services tab.
  4. Check the Hide all Microsoft services option.
  5. Check one of the services. …
  6. Click the Apply button.
  7. Click the OK button.
  8. Restart your computer.

13 авг. 2020 г.

How do you fix a black screen on a monitor?

Check the Power

  1. Unplug the monitor from the wall.
  2. Unplug the cord from the back of the monitor.
  3. Wait one minute.
  4. Plug the monitor cord back into the Monitor and a known-good wall outlet.
  5. Press the Monitor power button.
  6. If this still does not work, try with known-good power cord.

How do you fix a computer that turns on but no display?

8 Solutions — Your PC Turns On But No Display

  1. Test your monitor.
  2. Make sure your computer has completely restarted.
  3. Verify that the power supply voltage switch is set correctly.
  4. Perform a hard reset.
  5. Clear the BIOS memory.
  6. Reseat the memory modules.
  7. Understand LED lights.
  8. Check Hardware.

2 мар. 2021 г.

How do I stop my screen from going black Windows 10?

Replies (5) 

  1. Right click on start menu and select control panel.
  2. In the control panel window, search for power options and click on it.
  3. In the left side, choose “when to turn off the display option” and then in the drop down list, select “turn off the display” to Never and “put the computer to sleep” to “Never”
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How do I stop my second monitor from going to sleep?

Step 1: Open Control Panel and select “Power Options”. Step 2: Select “Choose when to turn off the display”. Step 3: Set the “Plugged in” options to Never for “Turn off display” and “Put computer to sleep”.

How do I fix my dual screen?

Set the Monitor Resolution

  1. Right-click on your desktop and select «Display». …
  2. From the display, select the monitor you wish to adjust.
  3. Click the «Advanced display settings» link (located at the bottom of the dialogue box).
  4. Click the «Resolution» drop-down menu and select your desired resolution.

Why does my monitor keep disconnecting?

You could have a bent pin on your DVI or VGA cable or the HDMI or DP cable can be bent from moving equipment around. A lot of monitors have multiple types of connections, so if you currently use an HDMI cable try a VGA. If cable swapping doesn’t tell you anything, try a different monitor.