If there is no display on a monitor, it means that there is no image being shown on the screen. It could be caused by a variety of issues, ranging from a faulty component in the monitor to a malfunctioning graphics card or driver in the computer itself.
The first step in troubleshooting this issue is to determine if the monitor is actually receiving power and functioning correctly. If the monitor is completely unresponsive, try power cycling it by turning it off and back on again. If the monitor still does not display an image, make sure all of the necessary cables are securely connected. For monitors with more than one connection port, also ensure that the correct port is selected.
If the monitor appears to be powering on normally but still doesn’t display, there’s a chance the issue is coming from the computer. To diagnose this, try connecting the monitor to another known working device.
If the monitor works correctly with another device then the issue lies within the computer in question, which can be narrowed down further by attempting each of the following steps:
• Restart the computer or laptop.
• Check the video output connections.
• Check the driver installation status and update outdated drivers.
• Check the power supply and/or graphics card.
• Roll back the video driver to a previous version.
• Check the display settings in the operating system.
• Try running the computer in safe mode.
• Consider a system restore to return the computer to a point before the issue started occurring.
If none of these steps resolve the problem, then it’s likely that there is something wrong with the monitor itself. Contact the manufacturer for replacement or repair options.