The top common reasons for your monitor keep going black randomly are: The cable connections – Check your video cables and video ports. Bad Drivers – Check if they are outdated or corrupt. Bad Power Supply – Check whether the power supply and the right amount of voltage are being delivered.
Why does one of my monitors go black?
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. This is typically the issue if your monitor goes black for only a few seconds, and then comes back on later.
Why does my second monitor keep going black for a few seconds?
HDMI, VGA, DVI, and other video display controllers transfer video and/or audio signals. If these signals can’t make their way to the monitor, your screen will go black. That may be because you’re using a splitter, a cable that’s too thin or long, or simply a cheap one.
Why does my second monitor keep going black Windows 10?
Detect display A black screen could also happen because Windows 10 will lose its connection with the display. Using the Windows key + Ctrl + Shift + B keyboard shortcut can restart the video driver and refresh the connection with the monitor.