Introduction
Have you ever found yourself juggling multiple windows, desperately trying to cram everything onto a single laptop screen? Maybe you’re a student writing a research paper, constantly switching between sources and your document. Perhaps you’re a remote worker, managing emails, spreadsheets, and video calls all at once. Or maybe you simply have an older laptop gathering dust and you’re looking for a way to breathe new life into it. In all these scenarios, the solution might be simpler than you think: using your laptop screen as an external monitor.
The concept is straightforward: repurposing your laptop’s display to serve as a secondary screen for your primary computer. This offers a remarkable boost to your productivity, provides a cost-effective alternative to purchasing a dedicated monitor, and saves precious desk space. While the process isn’t always a plug-and-play experience, and there are a few hurdles, utilizing a laptop screen as a monitor can be a remarkably practical solution for students on a tight budget, remote workers seeking to enhance their workflow, and individuals looking for a temporary or space-saving second display. Let’s explore how you can achieve this.
Exploring Methods and Requirements
To get your laptop screen working as a monitor, you will need to select the right method for your particular situation. This article will focus on the software-based solution and the hardware-based solution.
Software-Based Solutions
Software-based solutions offer an accessible and frequently free method for turning your laptop into an external display. These solutions work by transmitting the video signal from your primary computer to your laptop over a network connection, typically Wi-Fi. Several software options are available, including spacedesk and Deskreen. These programs are fairly simple to use and can allow you to use your laptop as a monitor, but they can also suffer from connectivity problems and lag.
Let’s walk through the setup process using spacedesk as an example, a popular and generally reliable option.
First, you’ll need to download and install spacedesk Driver software on your primary computer. This is the device that will send the display signal. Then, go to your laptop and download the spacedesk Viewer app. After installation, you will need to launch both programs.
On your main computer, the spacedesk Driver software will run in the background and detect the spacedesk Viewer app running on your laptop. You should see your laptop listed in the spacedesk Driver console. On your laptop, the spacedesk Viewer app will be searching for the driver software. If both devices are on the same network, it should automatically find your primary computer. Click on the connection button in the Viewer app to initiate the connection.
After the connection is established, your laptop screen should now display a mirror or extension of your primary computer’s display, depending on how you configure the display settings on your primary computer. You can adjust the resolution, orientation, and position of the laptop screen in your operating system’s display settings. To access the display settings in Windows, right-click on the desktop and select “Display settings.” In macOS, go to “System Preferences” and then “Displays.”
While spacedesk and similar software are generally user-friendly, some common issues can arise. Connectivity problems are frequent, especially on crowded Wi-Fi networks. If you experience lag or connection drops, try moving your devices closer to the router, switching to a five GHz network if available, or using an ethernet connection for one or both devices. Compatibility issues can also occur, especially with older operating systems or graphics drivers. Make sure both your primary computer and laptop meet the minimum system requirements for the software.
Delving into Hardware Solutions
While software offers a convenient route, hardware solutions provide a more robust and reliable way to use your laptop as a second screen. This typically involves using an HDMI capture card or HDMI to Ethernet converter.
HDMI capture cards work by receiving the HDMI signal from your primary computer and converting it into a format that your laptop can display, usually through a USB connection. HDMI to Ethernet converters extend the HDMI signal over an Ethernet cable, allowing you to connect your primary computer to your laptop via your local network.
The setup process for hardware solutions is a little different from software. With an HDMI capture card, you connect the HDMI output of your primary computer to the HDMI input of the capture card. Then, connect the capture card to your laptop via USB. You’ll likely need to install drivers for the capture card on your laptop. The capture card will usually come with software that allows you to view the incoming HDMI signal.
For an HDMI to Ethernet converter, you connect the HDMI output of your primary computer to the transmitter unit, and the receiver unit to your laptop. Connect the transmitter and receiver units via Ethernet cable. Depending on the specific converter, you may need to configure IP addresses and other network settings.
Hardware solutions offer several advantages. The connection is typically more stable and less prone to lag than software-based solutions. They also tend to provide higher image quality, with less compression and artifacting. However, they are more expensive and require specific hardware.
Limitations and Considerations
Before diving into using your laptop as a second screen, it’s essential to be aware of certain limitations and considerations.
First, check the input capabilities of your target laptop. Many laptops only have HDMI output ports, so they are designed to send the display signal, not receive it. This can prevent you from using many of the solutions listed in this article.
Performance can also be a factor. Software-based solutions can put a strain on your network and your computer’s CPU, leading to lag and reduced performance. Hardware solutions generally have less impact on performance, but they still require some processing power.
Laptop screens also have limitations in terms of resolution and refresh rate. Most laptop screens are designed for mobile use and may not offer the same image quality as a dedicated monitor. Additionally, using your laptop as a monitor will consume power, potentially draining the battery faster. You’ll likely need to keep your laptop plugged in while using it as a second screen.
Finally, consider the security implications of using third-party software. Make sure you download software from reputable sources and keep it updated to protect against vulnerabilities.
Advantages and Disadvantages in Detail
We have touched on some advantages and disadvantages, but we will explore them in more depth now.
Digging into Advantages
The most notable advantage of using a laptop as a second monitor is increased productivity. A second screen provides more screen real estate, allowing you to multitask more effectively. You can have your email open on one screen and your word processor on the other, or you can compare two documents side by side without constantly switching windows.
Using your laptop as a monitor is also a cost-effective solution. Rather than buying a separate dedicated monitor that you may not need forever, or only need temporarily, you may be able to repurpose equipment you already have on hand.
Another advantage is that you save on space. A full-size monitor and its stand will take up more space than just setting your laptop somewhere on your desk, or to the side of it.
If you are looking to do something productive with that old laptop you put in the closet a few years ago, this may be the solution for you. If the laptop is still in reasonable working order, there is no reason to waste it!
Disadvantages to Consider
Software solutions, in particular, can suffer from lag. Depending on the solution you use and the strength of your signal, you may find using this option to be more frustrating than helpful.
The resolution of your laptop screen will be another important factor. Older laptops, in particular, may have an uncomfortably low resolution compared to newer displays, and that can make it difficult to use as a main display for reading documents or watching media.
Be prepared for the battery to run down much faster than you expect. Using your laptop screen will take a lot of power, and may quickly exhaust its charge.
Finally, setting up a solution like this is not as simple as just plugging a monitor in. If you are not careful, or are new to technology, you may find this process frustrating.
Alternative Solutions
Using your laptop as a second monitor is a great option for some, but other options exist.
Purchasing a dedicated external monitor is the traditional solution. External monitors come in a variety of sizes, resolutions, and price points. They offer the best image quality and performance, but they also require additional desk space and cost money.
Tablets can also be used as a second screen, especially through software like Duet Display. This can be a good compromise if you already own a tablet.
Conclusion
Using a laptop screen as a second monitor is a compelling solution for boosting productivity, saving money, and repurposing old devices. While it may not be as straightforward as plugging in a dedicated monitor, the benefits can outweigh the challenges, especially for students, remote workers, and those with limited space. Software-based solutions offer a cost-effective and relatively easy way to get started, while hardware solutions provide a more stable and reliable connection for demanding tasks. Before embarking on this endeavor, be sure to consider the limitations of your laptop’s hardware and software, and choose the method that best suits your needs and technical capabilities.
So, if you’re feeling cramped on a single screen, why not give your laptop a new lease on life? Explore the options, experiment with different methods, and discover the productivity-boosting power of a dual-screen setup. We encourage you to try one of these methods and share your experience in the comments below. Happy multitasking!