If you’re trying to use a second monitor and it’s not working, don’t despair. In this article, we’ll run through some common causes of this problem and how to fix them.
The most common reason for a second monitor not working is a faulty HDMI cable. If you’re using an HDMI cable to connect your second monitor, try swapping it out for a different one. If you don’t have another HDMI cable handy, you can try using a different type of cable, such as DVI or VGA. If that doesn’t work, the problem is most likely with your graphics card or HDMI port.
Another common reason for a second monitor not working is that the wrong display mode is selected. To fix this, right-click on your desktop and select ‘Display Settings’. Under ‘Multiple displays’, make sure that the ‘Extend these displays’ option is selected.
If your second monitor is still not working, it’s likely that there’s a problem with your graphics card or HDMI port. To test this, you can try connecting your second monitor to a different computer. If it works on the other computer, then the problem is with your first computer. If it doesn’t work on the other computer either, then the problem is most likely with the monitor itself.
If you’ve tried all of the above and your second monitor still isn’t working, it’s time to contact a professional. Monitor troubleshooting can be a complex process, and it’s best to leave it to the experts.