Have you ever wished you had a second monitor for your desktop computer or gaming console, but didn’t want the expense or extra desk space? You might be overlooking a perfect screen already in your possession: your laptop. Using your laptop screen as an external monitor is a clever way to boost your productivity or enjoy a larger display for your entertainment without spending a dime.
Connecting with a Cable for a Reliable Setup
The most straightforward method is using a physical cable. For this to work, your laptop needs an HDMI input port, which is less common. Most laptop HDMI ports are output-only. Check your laptop’s specifications first. If you’re in luck, a standard HDMI cable is all you need to connect your desktop PC to your laptop. If your laptop has the correct port, you can usually switch to this input using a function key (like Fn + F8) to cycle through display options.
Using Built-in Software for a Wireless Connection
Since most laptops lack an HDMI input, software solutions are the more common and versatile approach. Both Windows and macOS have built-in features for this. In Windows, look for the Projecting to this PC settings. You can adjust these settings to allow other devices to project to your laptop. On a Mac, the Sidecar feature lets you use your iPad or another Mac as a second display seamlessly over Wi-Fi. These built-in tools are fantastic for creating a quick, wireless extended workspace.
Exploring Third-Party Applications
If the built-in options don’t suit your needs, several reliable third-party applications can help. Programs like Space Desk or Parsec are popular choices. They work by installing software on both your main computer and your laptop. The main computer streams its display to the laptop over your network. This method is excellent for older laptops that might not support the latest built-in features and offers a lot of customization for your setup.
Key Considerations Before You Start
For the best experience, especially with wireless methods, ensure both devices are on the same strong Wi-Fi network to minimize lag. A wired ethernet connection for your main PC can also improve performance. Also, be aware that using software will consume some of your laptop’s processing power, which might slightly impact its performance if you’re running demanding tasks on the host machine.
With a little setup, your laptop can easily pull double duty as a secondary monitor. It’s a smart, cost-effective way to expand your digital workspace and get more out of the technology you already own.