# How to set up dual monitors on a PC: ports, cables and Windows 11 settings > Set up two monitors on a Windows PC or laptop: check the video outputs, pick the right cables, then extend, arrange and tune both screens in Windows 11. - URL: https://computese.com/how-to-set-up-dual-monitors-on-your-pc/ - Author: Duong Quan Nguyen, CEO, Computese - Published: 2024-08-12 - Updated: 2026-09-25 - Topics: IT support ## In short - To set up dual monitors, connect each monitor to its own video output (HDMI, DisplayPort or a USB-C port that carries video), then open Settings > System > Display, choose Extend these displays and drag the screens to match your desk. - On a desktop with a graphics card, plug both monitors into the card, not the motherboard. Most modern graphics hardware drives two screens, but check the display limit, which on a laptop includes the built-in screen. - A USB-C port carries video only with DisplayPort Alt Mode or Thunderbolt, and a splitter can only duplicate. A second independent picture needs a second output, a dock or a DisplayPort MST daisy chain. - Most problems are a loose cable, the wrong input selected on the monitor, a missing graphics driver or Duplicate mode. Press Windows + P and choose Extend, then Windows + Ctrl + Shift + B to reset the graphics driver. To set up dual monitors on a PC, connect each monitor to its own video output on the graphics card or laptop (HDMI, DisplayPort, or a USB-C port that carries video), then open Settings > System > Display in Windows 11, choose Extend these displays, drag the two screens to match your desk and pick the main display. Most modern graphics hardware can drive two screens. What decides whether it works on the first try is detail: which port each cable goes into, whether a USB-C port carries video at all, and a handful of Windows settings. This guide covers desktops and laptops, from choosing cables to daisy-chaining over DisplayPort, fixing a monitor that shows "No signal", and arranging two screens so they are comfortable to work on. If the PC itself is new, [set up Windows and its drivers first](https://computese.com/how-to-set-up-windows-for-a-new-computer/). The steps are written for Windows 11; Windows 10 uses nearly the same screens, but its support ended on October 14, 2025. If you also run a [virtual machine](https://computese.com/how-to-set-up-a-virtual-machine-on-your-pc/), its window can sit on the second screen. ## Check which video outputs your PC has Each monitor needs its own video signal. On a desktop that usually means one output per monitor (a DisplayPort daisy chain, covered below, is the exception); on a laptop the built-in screen is already one display, and each external monitor adds another. Before buying anything, look at what the PC offers. ### On a desktop, use the graphics card's ports A separate graphics card sits in an expansion slot, so its ports line up along one of the slot brackets on the back of the case. Ports elsewhere on the rear panel belong to the motherboard and the processor's integrated graphics. If the PC has a card, plug both monitors into the card. [Dell recommends exactly that](https://www.dell.com/support/kbdoc/en-us/000175323/troubleshooting-video-issues-with-a-graphics-card-fitted-in-a-dell-desktop-pc) for its desktops, and notes that fitting a card makes the firmware switch the integrated video off, so a monitor plugged into the motherboard may show nothing at all. ![The back of a desktop tower: two monitor cables plug into the ports of an orange graphics card in an expansion slot, while the motherboard's own video ports higher up are left unused.](https://computese.com/images/blog/how-to-set-up-dual-monitors-on-your-pc/outputs.0fca433365-1536.webp) *Plug both monitors into the graphics card: once a card is fitted, the motherboard's video ports may be switched off.* ### Check how many displays the graphics can drive For two monitors this is rarely the limit: [Dell's guidance](https://www.dell.com/support/contents/en-us/article/product-support/self-support-knowledgebase/monitor-screen-video/setup-dual-triple-monitor) is that most modern graphics cards handle a dual setup, and that the count matters more at three or four screens. To confirm it for your hardware: - **Intel graphics:** look up the processor on Intel's product specification pages; under Processor Graphics, "# of Displays Supported" gives the number. [Intel also warns](https://www.intel.com/content/www/us/en/support/articles/000029126/graphics.html) that a PC maker can restrict a system to one or two monitors, in software or simply by fitting fewer ports. - **AMD Radeon:** [AMD states](https://www.amd.com/en/resources/support-articles/faqs/DH3-014.html) that the number of displays is set by the specifications of the graphics card. - **Anything else:** open Device Manager and expand Display adapters to see which display adapter you have, then check its maker's specifications. That is Microsoft's advice when one monitor works and the second does not. ### On a laptop, look at HDMI, USB-C and Thunderbolt Laptops usually have an HDMI port, one or more USB-C ports, or both. USB-C carries video only when the port supports DisplayPort Alternate Mode (DP Alt Mode) or Thunderbolt. According to [VESA's DisplayPort FAQ](https://www.displayport.org/faq/), ports with DP Alt Mode may carry a small DP logo, and Intel says a Thunderbolt port has the Thunderbolt icon beside it. With no marking, the laptop's specifications will say. Plugging a monitor into a USB-C port without video support does no harm: the screen stays blank, and [Windows may show a warning](https://support.microsoft.com/en-us/windows/hardware/usb/fix-usb-c-problems-in-windows). > [!NOTE] > A splitter does not give you a second screen. Microsoft points out that it duplicates one signal instead of creating two independent ones, so Windows can mirror but never extend. For a second picture you need a second output, a docking station or a DisplayPort daisy chain. ## Choose the right cables and adapters Use the same connector at both ends where you can: HDMI to HDMI, DisplayPort to DisplayPort, USB-C to USB-C. [Microsoft's Surface guidance](https://support.microsoft.com/en-us/surface/accessories/external-display/connect-surface-to-an-external-display) recommends exactly that, and when you must convert, it ranks adapters from best to worst as USB-C, DisplayPort, HDMI, DVI, then VGA. | Connection | What it carries | Daisy-chain | What to check | | ---------------------- | -------------------------------------------------- | ------------------------------- | -------------------------------------------------------------- | | HDMI | Video and audio | No | A certified cable for the bandwidth your monitor needs | | DisplayPort | Video and audio, several displays from one output | Yes, with MST (DP 1.2 or later) | A cable of the same version as the ports | | USB-C with DP Alt Mode | DisplayPort video, USB data and power on one cable | Yes, to an MST monitor | The port must support DP Alt Mode; look for the DP logo | | Thunderbolt 4 or 5 | DisplayPort video, data and power | Yes (Thunderbolt 3 or later) | Thunderbolt 4: at least two 4K monitors; Thunderbolt 5: two 8K | | DVI or VGA | Video only (VGA is analog, DVI-D is digital) | No | Legacy; use an active adapter when converting to a newer port | A few rules keep the picture stable: - **Match the cable to the ports.** [Dell's daisy-chain guide](https://www.dell.com/support/contents/en-us/article/product-support/self-support-knowledgebase/monitor-screen-video/guide-daisy-chain-monitors) gives the example of a DisplayPort 1.4 laptop and monitor, which need a DisplayPort 1.4 cable; the cable in the monitor's box usually matches the monitor's ports. DisplayPort 2.1b, announced in January 2025, is the current version, and its fastest link rate (UHBR20, 80 Gbps) calls for VESA's DP80LL cables. - **Buy HDMI cables by certification.** Cables for HDMI 2.1 bandwidth (up to 48 Gbps) are sold as [Ultra High Speed HDMI Cables](https://www.hdmi.org/spec21sub/ultrahighspeedcable), and HDMI 2.2 adds Ultra96 cables for up to 96 Gbps. Both carry a certification label you can scan with a phone. - **Prefer one adapter cable to a dongle chain.** For a USB-C laptop and a DisplayPort monitor, VESA recommends a USB-C to DisplayPort cable; a small adapter plus a separate DisplayPort cable can cause poor picture quality, intermittent operation or no picture. - **Convert actively, and keep it short.** When changing connection type or covering a long distance, Microsoft recommends active adapters or extenders, and the shortest cable that reaches. ## Connect the monitors to your PC With the outputs and cables sorted, connecting two monitors to a PC takes a few minutes: 1. Plug each monitor into power and switch it on. 2. Run one cable per monitor, from the monitor's input to its own output on the graphics card, laptop or dock. 3. On each monitor, open its menu with the buttons on the frame and [set the input source to the port you used](https://support.microsoft.com/en-us/surface/accessories/external-display/troubleshoot-connecting-surface-to-an-external-display), such as HDMI 1, DisplayPort or USB-C. 4. Let Windows detect the new screen; it configures a newly connected monitor automatically. 5. If a screen stays dark, check the cable is seated at both ends, then run Settings > Windows Update > Check for updates. Those are the first two checks on [Microsoft's multiple monitor page](https://support.microsoft.com/en-us/windows/hardware/display-graphics/how-to-use-multiple-monitors-in-windows). > [!TIP] > Open Device Manager and expand Display adapters. If it lists [Microsoft Basic Display Adapter](https://support.microsoft.com/en-us/windows/hardware/display-graphics/microsoft-basic-display-adapter-in-windows), Windows is running its generic driver, which lacks the manufacturer's features, including support for multiple monitors. Install the graphics driver from [Windows Update](https://computese.com/how-to-update-your-computer-or-phone/), or from the manufacturer's website if Windows Update has none. The DirectX Diagnostic Tool gives the same answer: press Windows + R, run the command below, and read the driver name next to Name on the Display tab. ```text dxdiag.exe ``` ## Set up dual monitors in Windows 11 display settings Everything lives in Settings > System > Display. With two monitors detected, the top of the page shows them as numbered rectangles. ### Choose Extend, not Duplicate Press Windows + P to choose what the screens show: | Choose | What you get | | ------------------ | ---------------------------------------------------------------------------- | | PC screen only | One display only (on a laptop, the built-in screen) | | Duplicate | The same picture on every display | | Extend | One desktop across all displays; you can move windows and items between them | | Second screen only | Everything on the second display only | For two monitors as one workspace, choose Extend. The same choice sits in Display settings, in the list beside the layout: Extend these displays or Duplicate these displays. ### Arrange the screens to match your desk 1. Select **Identify**. A number appears on each screen, matching a rectangle in the layout. 2. Drag the rectangles until they sit the way the monitors stand: left and right in the right order, and at the right height relative to each other. Dell recommends lining up the top edges for smooth pointer movement. 3. Select **Apply**, then move the pointer across to test the join. This matters because of how Windows builds an extended desktop. It treats the rectangle that bounds all your monitors as [one virtual screen](https://learn.microsoft.com/en-us/windows/win32/gdi/the-virtual-screen), and the desktop covers it. Every monitor has to [share at least part of an edge](https://learn.microsoft.com/en-us/windows/win32/gdi/about-multiple-display-monitors) with another, and the pointer stays inside the monitors' area, so it can only cross where the rectangles touch in the layout. If the diagram puts the second screen on the left while it stands on your right, the pointer leaves the wrong side. ![Two monitors of different sizes on a desk and, above them, the same two screens drawn as rectangles with their top edges aligned. A dashed path shows the pointer crossing the orange edge where they touch.](https://computese.com/images/blog/how-to-set-up-dual-monitors-on-your-pc/arrangement.36c160fdc0-1536.webp) *The pointer crosses only where the rectangles touch in the layout, so draw them the way the monitors stand on the desk.* Monitors with different resolutions make that join uneven: Dell notes that the pointer will not move seamlessly between them and may seem to jump. Line up the edges you cross most often. ### Choose the main display The main display is where the taskbar and Start menu appear. Select the monitor you want in the layout, then tick **Make this my main display**. It does not have to be the screen on the left: [Microsoft's documentation on the virtual screen](https://learn.microsoft.com/en-us/windows/win32/gdi/the-virtual-screen) notes that the primary monitor holds the origin of the desktop's coordinates wherever it sits in the arrangement. ### Keep windows where you left them Expand **Multiple displays** for two settings that matter on a laptop you dock and undock: Remember window locations based on monitor connection, and Minimize windows when a monitor is disconnected. With them on, windows on the external screen are minimized when you undock, and Windows puts them back where they were when you reconnect. ## Set resolution, scale, refresh rate and orientation for each screen Each monitor keeps its own settings, so select it in the layout first, then work down the page. - **Resolution.** Under Display resolution, pick the option marked (Recommended). [Monitors accept resolutions below their native resolution](https://support.microsoft.com/en-us/windows/hardware/display-graphics/change-your-screen-resolution-and-layout-in-windows), but text looks less sharp and the picture can end up small, stretched or bordered in black. - **Scale.** Under Scale & layout, choose the Scale marked (Recommended). Because each screen has its own scale, text can look a similar size on a small laptop panel and a larger monitor. - **Refresh rate.** Open Advanced display and pick a rate next to Choose a refresh rate. The panel also shows whether the display supports variable refresh rate (VRR). Rates marked with an asterisk (\*) do not work at the current resolution, and choosing one changes the resolution. Windows 11's [Dynamic refresh rate (DRR)](https://support.microsoft.com/en-us/windows/hardware/display-graphics/change-the-refresh-rate-on-your-monitor-in-windows) needs a display with VRR and at least 120 Hz. - **Orientation.** To stand a monitor on its end, set Display orientation to Portrait and rotate the screen physically. Keep the top of a portrait screen [no higher than your eyes](https://www.ccohs.ca/oshanswers/ergonomics/office/monitor_positioning.html). The refresh rates on offer depend on the display and what it supports. If a high-refresh monitor tops out below its rating, check that the cable and ports match (see the cables section above) before blaming the monitor. ## Daisy-chain two monitors from one port with DisplayPort MST Daisy-chaining connects the PC to the first monitor and the first monitor to the second, so one output drives both. It relies on DisplayPort Multi-Stream Transport (MST), which carries a separate picture for each monitor over the one link. Dell lists three kinds of PC output that can do it: DisplayPort 1.2 or later, USB-C with DisplayPort Alt Mode, and Thunderbolt 3 or later. HDMI cannot daisy-chain. What you need: - a PC with one of those outputs, and a current graphics driver; - a first monitor with a DisplayPort Out (or Thunderbolt downstream) port and MST support; according to Dell, only the first monitor in the chain has to support MST; - a power cable for every monitor, because DisplayPort does not power them. Then: 1. Connect the PC to the first monitor's DisplayPort In, or its USB-C or Thunderbolt upstream port. If the monitors differ, Dell advises putting the highest-resolution one first. 2. Connect the first monitor's DisplayPort Out to the second monitor's DisplayPort In. 3. In the monitors' on-screen menus, turn on MST. Some models call it DisplayPort 1.2 mode, and Dell ships it switched off by default. 4. In Windows, choose Extend and arrange the screens as above. ![A laptop sends two video streams down one cable to a first monitor, which shows one picture and passes the other through its output port to a second monitor. Each monitor has its own power cable.](https://computese.com/images/blog/how-to-set-up-dual-monitors-on-your-pc/daisy-chain.e732bb0274-1536.webp) *One DisplayPort cable carries both pictures, and the first monitor passes the second one along; each monitor still needs its own power.* Every monitor in the chain shares the bandwidth of that single link, so resolution, refresh rate and colour depth decide how many you can chain, while Display Stream Compression (DSC) raises the limit. [Dell's rule of thumb](https://www.dell.com/support/contents/en-us/article/product-support/self-support-knowledgebase/monitor-screen-video/connect-monitor-to-computer) is that most modern computers support daisy-chaining up to two monitors, and it recommends monitors from the same maker for the best compatibility. ## Connect two monitors to a laptop with USB-C, Thunderbolt or a dock A laptop with an HDMI port and a video-capable USB-C port can often run one monitor from each. The built-in screen counts toward the graphics limit, though: Dell notes that some PCs support only two or three displays in total, so a third screen can push you over. With only one video output, Microsoft says, a laptop supports one external monitor by default, and a second needs a docking station or a USB-C adapter. The three kinds of dock behave differently: - **USB-C dock (DisplayPort Alt Mode).** One cable carries charging power, USB data and video for one or more displays; to feed several, the dock can include a DisplayPort branch device. VESA draws a firm line here: by the USB-IF's definition a USB-C _hub_ carries only USB, not DP Alt Mode, so a product that also drives monitors is properly a dock, even when a shop lists it as a hub. - **Thunderbolt dock.** [Intel's Thunderbolt overview](https://www.intel.com/content/www/us/en/architecture-and-technology/thunderbolt/overview.html) sets the floor: Thunderbolt 4 supports two 4K monitors, and Thunderbolt 5 (80 Gbps) supports two 8K monitors using Display Stream Compression. Plug it into the port with the Thunderbolt icon. - **DisplayLink dock or adapter.** These use a Synaptics DisplayLink USB graphics chip and need the [DisplayLink USB Graphics Software for Windows](https://www.synaptics.com/products/displaylink-graphics/downloads/windows) installed (release 12.3 on September 4, 2026). [Synaptics positions it](https://www.synaptics.com/products/displaylink-graphics) as a way to add displays beyond what the laptop's own hardware provides. To work with the lid closed on two external monitors, open Control Panel > System and Security > Power Options > [Choose what the power buttons do](https://support.microsoft.com/en-us/windows/experience/power-battery/shut-down-sleep-or-hibernate-your-pc), select Change settings that are currently unavailable, and set **When I close the lid** to Do nothing in the Plugged in column. Do nothing is one of [the four lid actions Windows supports](https://learn.microsoft.com/en-us/windows-hardware/customize/power-settings/power-button-and-lid-settings-lid-switch-close-action), alongside Sleep, Hibernate and Shut down. ## Fix common dual monitor problems Start with Windows + P. [Microsoft's troubleshooting page](https://support.microsoft.com/en-us/windows/hardware/display-graphics/troubleshoot-external-monitor-connections-in-windows) begins by checking that Extend is selected, then works through cables, ports and drivers. | Symptom | Likely cause | Fix | | ------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------- | | Second monitor shows "No signal" | Loose cable, or [the monitor is set to a different input](https://www.dell.com/support/kbdoc/en-us/000132851/how-to-troubleshoot-multiple-monitor-issues) | Reseat both ends, select the right input on the monitor, try another cable | | Monitor missing from Display settings | Not detected yet, or no proper graphics driver | Select Detect under Multiple displays; install the maker's driver if Microsoft Basic Display Adapter is listed | | Both screens show the same thing | Display mode is Duplicate | Windows + P, then Extend | | One external monitor works, the second never does | Graphics limit reached, a splitter, or a motherboard port on a PC with a card | Check the display limit; use a second output or a dock; move the cable to the graphics card | | "Display connection might be limited" | The USB-C port, cable or hub does not support DisplayPort Alt Mode | Connect directly to the port that supports DP Alt Mode or Thunderbolt, with a cable that does | | Blurry text or the wrong resolution | Not at the recommended resolution, or an outdated driver | Choose the (Recommended) resolution; update the graphics driver | | Screen flickers | [A display driver, an incompatible app](https://support.microsoft.com/en-us/windows/hardware/display-graphics/troubleshoot-screen-flickering-in-windows), or a loose cable | Open Task Manager: if it flickers too, fix the driver; if not, update or remove the app | | Second monitor in a daisy chain stays dark | MST switched off, the wrong port, or too many displays | Turn on MST in the first monitor, use its DisplayPort Out, chain fewer monitors | | Screens stay dark after sleep | The display did not wake with the PC | Press Windows + Ctrl + Shift + B, then reconnect the monitor or restart | | Pointer sticks at the edge between screens | The layout does not match the desk, or the resolutions differ | Rearrange the rectangles in Display settings and line up the edges you cross | If a setup that worked yesterday stops today, Microsoft suggests this order: 1. Press Windows + Ctrl + Shift + B to reset the graphics driver. 2. Restart. If that does not help, shut down fully and start again. 3. If the problem began after an update, open Device Manager > Display adapters, right-click the adapter, select Properties > Driver and choose Roll Back Driver. 4. Otherwise uninstall the display adapter (tick Attempt to remove the driver for this device), restart, and let Windows reinstall it. Setting up screens for a whole team is a different job from setting up one desk. Our [IT support](https://computese.com/services/it-support/) includes device set-up for new starters, remote fixes with a note of what was changed, and an asset register with advice on what to replace and when. ## Make two monitors comfortable to use Once both screens work, using dual monitors well comes down to a few habits: - **Move windows between screens** by dragging the title bar across the join, or with [Windows + Shift + Left arrow or Right arrow](https://support.microsoft.com/en-us/accessibility/windows/keyboard-shortcuts-in-windows). - **Snap windows** into layouts: [hover over a window's maximize button](https://support.microsoft.com/en-us/windows/experience/snap-your-windows) or press Windows + Z, then pick a layout. The layouts offered depend on the size of the display. - **Choose where the taskbar appears**: right-click the taskbar, select Taskbar settings, expand Taskbar behaviors and tick or clear [Show my taskbar on all displays](https://support.microsoft.com/en-us/windows/experience/personalization/customize-the-taskbar-in-windows). A separate setting, Combine taskbar buttons on other taskbars, decides how the extra taskbars group their buttons. - **Use a different wallpaper per screen** in Settings > Personalization > Background, where right-clicking a recent image lets you set it for one monitor or for all of them. - **Gaming across screens** is a separate feature: [AMD Eyefinity](https://www.amd.com/en/resources/support-articles/faqs/DH3-014.html), for example, merges up to six displays per graphics card into one large surface, and it builds on Windows' Extend mode rather than replacing it. Position matters as much as settings. The [Canadian Centre for Occupational Health and Safety](https://www.ccohs.ca/oshanswers/ergonomics/office/monitor_positioning.html) (CCOHS) suggests that if you use both monitors equally, you place them in front of you with the edges touching, angled into a semicircle. If you use one more, put it directly in front of you and the second to one side at an angle. Either way, keep them about an arm's length away and at the same height, around eye level, or slightly lower if you wear bifocal or progressive lenses. ## Key terms - **Extend mode**: The display mode that joins two or more monitors into one desktop, so windows and the pointer move between them. Duplicate shows the same picture on every screen instead. - **Main display**: The monitor Windows treats as primary. It carries the Start menu and taskbar and holds the origin of the desktop's coordinates, and it does not have to be the leftmost screen. - **Display adapter**: Windows' name for the graphics hardware, whether integrated in the processor or a separate graphics card. Device Manager lists it under Display adapters, with the driver it uses. - **DisplayPort Alt Mode**: The VESA standard (DisplayPort Alt Mode for USB Type-C) that carries DisplayPort video over a USB-C connector and cable, alongside USB data and power. A USB-C port without it cannot drive a monitor. - **Thunderbolt**: Intel's connection on a USB-C connector that carries DisplayPort video along with data and power. Thunderbolt 4 supports at least two 4K monitors; Thunderbolt 5 supports two 8K monitors with compression. - **Multi-Stream Transport (MST)**: A DisplayPort feature that sends a separate picture for several monitors over one output. It is what makes daisy-chaining monitors, and many multi-monitor docks, possible. - **Docking station**: A box that connects to a laptop over one USB-C or Thunderbolt cable and adds video outputs, USB ports and charging. A USB-C hub is different: hubs do not carry DisplayPort Alt Mode. - **DisplayLink**: A Synaptics USB graphics technology built into some docks and adapters. It adds displays over ordinary USB and needs the DisplayLink driver installed on the PC. - **Native resolution**: The physical pixel grid of a monitor. Running a monitor below it makes text less sharp and can leave the picture small, stretched or bordered in black. - **Refresh rate**: How many times per second a display redraws the picture, measured in hertz (Hz). A 60 Hz display updates the screen 60 times per second. ## Common questions ### How do I connect two monitors to a PC with only one HDMI port? Use a different output for the second monitor: DisplayPort, or a USB-C port that supports DisplayPort Alt Mode or Thunderbolt. If there is none, a docking station or a DisplayPort daisy chain can add the second screen. An HDMI splitter will not work, because it only duplicates one picture. ### Can a laptop run two external monitors? Often, yes: one on HDMI and one on a video-capable USB-C or Thunderbolt port, or both through a dock. The laptop's own screen counts toward the graphics limit, so if the second external monitor stays dark, check the maker's specifications; Dell suggests disconnecting one screen or turning off the laptop's own display. ### Why is my second monitor not detected? Check the cable at both ends and the input source selected on the monitor. Then press Windows + P and choose Extend, and select Detect under Settings > System > Display > Multiple displays. If Device Manager shows Microsoft Basic Display Adapter, install the graphics driver from Windows Update or the manufacturer. ### Do both monitors need to be the same model or resolution? No. Windows keeps resolution, scale and refresh rate separately for each monitor. Different resolutions do make the pointer's path between screens uneven, so line up the edges you cross in Display settings. For a daisy chain, Dell recommends monitors from the same maker. ### Is HDMI or DisplayPort better for dual monitors? Either works when each monitor has its own output. DisplayPort can also daisy-chain monitors with MST, which HDMI cannot. For high resolutions and refresh rates, what matters most is a cable rated for the ports: a certified Ultra High Speed HDMI cable, or a DisplayPort cable of the port's version. ### How do I move a window to the other monitor? Drag it by its title bar across the edge where the two screens meet, or press Windows + Shift + Left arrow or Right arrow to send the active window to the monitor on that side. ## Sources 1. [How to use multiple monitors in Windows](https://support.microsoft.com/en-us/windows/hardware/display-graphics/how-to-use-multiple-monitors-in-windows), Microsoft Support 2. [How to Set Up Dual Monitors](https://www.dell.com/support/contents/en-us/article/product-support/self-support-knowledgebase/monitor-screen-video/setup-dual-triple-monitor), Dell 3. [Troubleshooting Video Issues With a Graphics Card Fitted in a Dell Desktop](https://www.dell.com/support/kbdoc/en-us/000175323/troubleshooting-video-issues-with-a-graphics-card-fitted-in-a-dell-desktop-pc), Dell 4. [What is the Maximum Number of Displays that My Intel Graphics Can Support?](https://www.intel.com/content/www/us/en/support/articles/000029126/graphics.html), Intel 5. [Configure Multiple Displays to Run in AMD Eyefinity Mode](https://www.amd.com/en/resources/support-articles/faqs/DH3-014.html), AMD 6. [Troubleshoot external monitor connections in Windows](https://support.microsoft.com/en-us/windows/hardware/display-graphics/troubleshoot-external-monitor-connections-in-windows), Microsoft Support 7. [DisplayPort FAQ](https://www.displayport.org/faq/), VESA 8. [Thunderbolt Technology overview](https://www.intel.com/content/www/us/en/architecture-and-technology/thunderbolt/overview.html), Intel 9. [Connect Surface to an external display](https://support.microsoft.com/en-us/surface/accessories/external-display/connect-surface-to-an-external-display), Microsoft Support 10. [Ultra High Speed HDMI Cable](https://www.hdmi.org/spec21sub/ultrahighspeedcable), HDMI Licensing Administrator 11. [How to Daisy Chain Monitors for a Multi-Display Setup](https://www.dell.com/support/contents/en-us/article/product-support/self-support-knowledgebase/monitor-screen-video/guide-daisy-chain-monitors), Dell 12. [How to Connect a Monitor to Your Computer](https://www.dell.com/support/contents/en-us/article/product-support/self-support-knowledgebase/monitor-screen-video/connect-monitor-to-computer), Dell 13. [Troubleshoot connecting Surface to an external display](https://support.microsoft.com/en-us/surface/accessories/external-display/troubleshoot-connecting-surface-to-an-external-display), Microsoft Support 14. [Microsoft basic display adapter in Windows](https://support.microsoft.com/en-us/windows/hardware/display-graphics/microsoft-basic-display-adapter-in-windows), Microsoft Support 15. [The Virtual Screen](https://learn.microsoft.com/en-us/windows/win32/gdi/the-virtual-screen), Microsoft Learn 16. [About multiple display monitors](https://learn.microsoft.com/en-us/windows/win32/gdi/about-multiple-display-monitors), Microsoft Learn 17. [Change your screen resolution and layout in Windows](https://support.microsoft.com/en-us/windows/hardware/display-graphics/change-your-screen-resolution-and-layout-in-windows), Microsoft Support 18. [Change the refresh rate on your monitor in Windows](https://support.microsoft.com/en-us/windows/hardware/display-graphics/change-the-refresh-rate-on-your-monitor-in-windows), Microsoft Support 19. [Office Ergonomics: Positioning the Monitor](https://www.ccohs.ca/oshanswers/ergonomics/office/monitor_positioning.html), Canadian Centre for Occupational Health and Safety 20. [Fix USB-C problems in Windows](https://support.microsoft.com/en-us/windows/hardware/usb/fix-usb-c-problems-in-windows), Microsoft Support 21. [Windows Driver Downloads (DisplayLink)](https://www.synaptics.com/products/displaylink-graphics/downloads/windows), Synaptics 22. [DisplayLink Graphics](https://www.synaptics.com/products/displaylink-graphics), Synaptics 23. [Shut down, sleep, or hibernate your PC](https://support.microsoft.com/en-us/windows/experience/power-battery/shut-down-sleep-or-hibernate-your-pc), Microsoft Support 24. [Lid switch close action](https://learn.microsoft.com/en-us/windows-hardware/customize/power-settings/power-button-and-lid-settings-lid-switch-close-action), Microsoft Learn 25. [How to Fix Multiple Monitors Not Being Detected](https://www.dell.com/support/kbdoc/en-us/000132851/how-to-troubleshoot-multiple-monitor-issues), Dell 26. [Troubleshoot screen flickering in Windows](https://support.microsoft.com/en-us/windows/hardware/display-graphics/troubleshoot-screen-flickering-in-windows), Microsoft Support 27. [Keyboard shortcuts in Windows](https://support.microsoft.com/en-us/accessibility/windows/keyboard-shortcuts-in-windows), Microsoft Support 28. [Snap your windows](https://support.microsoft.com/en-us/windows/experience/snap-your-windows), Microsoft Support 29. [Customize the taskbar in Windows](https://support.microsoft.com/en-us/windows/experience/personalization/customize-the-taskbar-in-windows), Microsoft Support