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If you’re unsure about what graphics core you have, press the Windows key and type in “device manager”.

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The display driver handles the connection between your screens and your PC’s graphics core – the part that does all of the visual stuff.

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If the Display menu isn’t showing two screens then you should reinstall or update your display driver.Ī driver is a piece of software that helps Windows communicate with your PC or laptop’s hardware, so it’s pretty fundamental.

Choose that option and your desktop will stretch across the two panels. Open the menu beneath the Multiple Displays section and ensure that your PC is set to Extend These Displays. Make sure you select that rate in the Advanced Display menus. If you look up your monitor’s model number you can find its supported refresh rate on the manufacturer’s website. This figure represents how often your computer will send a new image to the display, and if it’s too high then the monitor won’t handle it – and may not display anything at all.

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Make sure it’s scaling at 100% and not any other figure.Ĭlick the Advanced Display Settings button in Windows 10 or the Advanced Display button in Windows 11 and also check the refresh rate.

If you can see the graphic with two screens but still can’t get any input from your second panel, there are a couple of tricks to try.Ĭlick on each monitor at the top of the Display window and make sure it’s set at the right resolution – if that’s wrong, it can sometimes trip up a screen and it won’t render anything. If not, Windows will tell you it couldn’t find another display. If it does, a graphic showing two screens will appear at the top of the main Display window. Click the Detect button and you’ll find out if your PC can find the second screen. Scroll down to the Multiple Displays section. Once that’s loaded, head into the System section, then click Display. Press the Windows key, type “settings” in the search box, and open the Settings app. The methods here are virtually unchanged between Windows 10 and Windows 11, so you’ll find most things in the same place on both operating systems.Īttempt some initial checks. Before you get too technical it’s worth investigating the Windows control panel. If everything seems fine physically, it’s probably a software problem. It’s amazing how often that will fix a computer issue. If you’ve done these checks and everything seems fine, reboot your PC or laptop. And if it does boot up, head into the monitor’s menu and check that it’s using the right display input – it’s no good connecting an HDMI cable if the screen thinks it’s hunting for a DisplayPort connection. Try all of this and you’ll quickly determine if you’ve got a dodgy display, cable or graphics card – and if any of those components need replacing.Ĭheck that the monitor (opens in new tab) and its plug are both switched on. If you can, use different cables in different ports, and test with a different display if you’ve got one available. Make sure that your display cables that run between your display and your PC or laptop are connected properly. It’s tempting to assume that any computer issue will be difficult to fix, but if your second screen won’t display then it might be alarmingly easy.īefore you head into the Control Panel or display driver, do some basic physical checks of your equipment. View Deal (opens in new tab) Basic physical checks