Windows 10: My computer is turning on, but not sending any video to my monitor. How can I fix this?

Just as the title says, I turn the computer on but the monitor stays off. I have tried unplugging and plugging back in the HDMI cables, and force rebooted the computer to no avail.

:)

 

Computer not automatically turning on monitor

Hi, LuvaiZ

Welcome to the Microsoft Community.

Based on your description, I understand that your Windows 10 is not turning on the monitor.



First of all I would suggest you to try to fix this problem by not powering off the monitor and keeping it on:



There is a power switch for the monitor on the side of the monitor. If you turned off the monitor's power switch the last time you shut down the computer. You will need to manually power on the monitor the next time you turn it on. Conversely, if you don't close it. The monitor will light up by itself when you turn on the computer.



You can also try to adjust the monitor's power on mode: enter the monitor's engineering mode and change the auto power option to on. the way to enter the engineering mode varies from brand to brand. You can ask your monitor manufacturer's technical support staff.

If you are sure that there is nothing wrong with your monitor and connecting cables，I recommend trying a clean boot which starts Windows with a minimal set of drivers and startup programs. It can be used to determine whether a background service or program is interfering or causing a problem.

These steps of "clean boot" might look complicated at first glance. However, to avoid any trouble for you, please follow them in order and step-by-step.

Then reinstall the monitor driver, which requires you to contact the monitor device supply vendor.

Wish you solve the trouble soon!

Best Regards,

Huon | Microsoft Community Support Specialist

 

Windows 10 refuses to boot without the old monitor.

Hi,

To address your issue with connecting a new monitor, please perform these steps:

• Plug in the old monitor.
• Uninstall the video driver, go to Device Manager > right-click on the video driver >
  Uninstall.
  
• Unplug the old monitor, then connect the new one.
• Turn on the computer, and Windows will attempt to reinstall the driver.
  

Update us on the result.

 

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