If you’re seeing a blank screen on a new monitor, then it’s likely that a new graphics card driver is in order.Īs we’ve explained above, your PC can sometimes use a resolution outside of the range supported by your monitor. When a display problem occurs, the monitor itself can often be the focus of your diagnostic efforts, but the graphics card your PC uses is often the bigger culprit. If the resolution stops your monitor from working, Windows will revert the setting to the previous setting that worked. Alternatively, use the 15-second window to change your resolution for a bit of a trial-and-error. If you’re unsure what resolutions are supported by your monitor, you should consult your user manual or the manufacturer website to find out.

This will allow you to change your standard display resolution to a lower setting that your monitor can support. There are ways to get around this, including restarting Windows and booting into Safe Mode to bypass the issue with a higher resolution.īy default, Windows will use a much lower display resolution in Safe Mode than during normal use. If you’ve haven’t recently changed your display settings, then your monitor resolution could have been changed automatically. If the monitor has suddenly lost resolution after changing the settings yourself, wait 15 seconds-Windows will revert back to your previous resolution after this point. Thankfully, fixing a blank monitor screen after changing your display settings is an easy process. If your PC’s graphics card is set to a display resolution above what your monitor is capable of displaying, you’ll likely see a blank screen or a no signal message appear. Check Monitor ResolutionĪ PC monitor has a set range of display resolutions that it can use to display your PC output. If it isn’t, switch to the correct source (for example, HDMI or DVI for modern PCs) to get your monitor working again.

If this is the case, make sure that the input source on your monitor is correctly set.

Signal on desktop