Yes, you can use your laptop as a monitor for another computer or game console. The process is not always simple, but it is possible with the right tools and a bit of setup work.
Many people have an old laptop sitting around. They want to give it a new job as a second screen. This can save you money on buying a new monitor.
I have tried this myself with a few different laptops. Some methods work great, while others are a bit tricky. It all depends on your laptop’s hardware and what you want to connect.
This guide will walk you through all the ways to do it. We will cover the easy methods and the hard ones. You will know exactly if you can use your laptop as a monitor.
What Does “Use My Laptop as a Monitor” Really Mean?
First, let’s clear up what we are talking about. When people ask this, they usually mean one of two things.
They want to see their desktop PC’s screen on their laptop. Or they want to plug a game console into their laptop screen. The goal is to use the laptop’s built-in display for another device.
Your laptop screen is just a monitor inside a computer case. The trick is getting a video signal from somewhere else to show on it. This is not a feature that comes ready to use.
Most laptops are built to send video out, not take it in. They have HDMI or USB-C ports for connecting to bigger monitors. Getting video to come in is the challenge we need to solve.
So, can you use your laptop as a monitor? The short answer is yes, but with some work. The long answer depends on your specific gear and needs.
I will explain the main methods you can try. Some need software, some need special cables. We will start with the easiest way first.
The Easiest Way: Remote Desktop Software
This is the method I use most often. You don’t need any special cables or ports. All you need is a network connection between the two computers.
You install a program on both your main PC and your laptop. The program lets you see and control the PC from the laptop’s screen. It’s like looking through a window at the other computer.
Popular free options include Windows Remote Desktop, Chrome Remote Desktop, and TeamViewer. I find Chrome Remote Desktop very simple for beginners. You just sign in with your Google account on both machines.
This method is perfect for office work or accessing files. The Microsoft website has guides for their built-in Remote Desktop tool. It works well if both computers are on the same Wi-Fi network.
The big downside is lag. Fast action like gaming or video editing can be choppy. The image quality might also drop if your internet is slow.
But for basic tasks, it’s a fantastic free solution. It truly lets you use your laptop as a monitor for another PC. Just remember, you are controlling the other computer, not just extending its display.
Using a Capture Card for HDMI Devices
Want to connect a game console or a camera? A capture card is your best bet. This is a small device that takes a video signal and sends it to your laptop via USB.
You plug your PlayStation, Xbox, or Nintendo Switch into the capture card with an HDMI cable. Then you plug the capture card into laptop’s USB port. Special software on the laptop shows the video feed.
This method is very reliable with almost no lag. It’s how many streamers show their gameplay on screen. You are essentially using your laptop as a monitor for the console.
You can buy a decent capture card for under $50. Look for one that says “plug and play” or “no external power needed.” I’ve used the Elgato Cam Link for this, and it works great.
The FCC has info on electronic device compatibility which can be useful. Always check that your laptop’s USB port is fast enough, usually USB 3.0 or better.The only real con is the cost of the capture card itself. But if you already have one for streaming, this is a perfect dual use. It’s a solid way to use your laptop as a monitor for HDMI sources.
Miracast and Wireless Display Features
Some newer Windows laptops have a feature called “Miracast” or “Wireless Display.” This lets you project your PC’s screen to the laptop over Wi-Fi, similar to a smart TV.
On your main PC, press the Windows key + K. This opens the Cast menu. If your laptop supports it, it should show up as a device you can connect to.
This is a very clean, cable-free method. It’s built right into Windows 10 and 11. I’ve used it to quickly share my desktop during meetings.
However, support is hit or miss. Your laptop must have the right wireless hardware to receive the signal. Many older or budget laptops can only send a signal, not receive one.
You can check by going to Settings > System > Projecting to this PC. If you see options to allow connections, your laptop can be used as a monitor this way.
Like remote software, you might see some lag. It’s fine for presentations or videos, but not for fast-paced games. Still, it’s a neat trick if your hardware supports it.
The Hard Way: Special Hardware and Modified Ports
You might see videos online about using special HDMI adapters. They claim to turn your laptop’s HDMI port into an input. I have to warn you, this almost never works.
A laptop’s HDMI port is almost always output-only. The hardware inside is not built to accept a video signal. An adapter cable cannot change this basic fact.
There are a few rare, expensive gaming laptops with a dedicated “HDMI-in” port. These are made specifically to use the laptop as a monitor. They are not common.
Some very old laptops had a port called “VGA-in” or a special docking port. If you have a laptop from 10+ years ago, it’s worth checking the manual. The TechSoup organization sometimes has old manuals for charity tech.
Trying to force an input with the wrong hardware can damage your port. I don’t recommend buying any “HDMI to USB” adapter that promises this. It will likely just show a black screen.
Stick with the software or capture card methods. They are reliable and safe. They are the proven ways to use your laptop as a monitor.
Step-by-Step Guide Using Software (Chrome Remote Desktop)
Let’s walk through the easiest method step by step. I’ll use Chrome Remote Desktop as our example because it’s free and works on any computer.
First, on both your main PC and your laptop, open the Google Chrome browser. Go to the Chrome Web Store and search for “Chrome Remote Desktop.” Add the extension to Chrome on both machines.
On the computer you want to control (your main PC), open the extension. Click “Turn on” under “Remote Access.” You will need to sign in to your Google account and set a PIN.
Now, on your laptop, open the same extension. You should see the name of your main PC listed. Click on it, enter the PIN you created, and hit connect.
After a moment, your main PC’s desktop will appear in a window on your laptop. You can now use your mouse and keyboard to control it. You are using your laptop as a monitor.
To make it full screen, click the full screen button in the top bar. The image might be a little pixelated at first but will clear up. You can adjust the quality in the settings if needed.
When you’re done, just close the window on your laptop. The connection will end. Your main PC will lock itself until you use it directly again. It’s that simple.
Common Mistakes People Make
I see a few mistakes all the time. Avoiding these will save you a lot of headache.
The biggest one is buying the wrong cable. People buy a standard HDMI cable and try to connect two computers. This will not work because both ports are outputs.
Another mistake is not checking network settings for software methods. Both computers need to be on the same network. Sometimes a firewall can block the connection, so you may need to allow the program.
Forgetting about audio is common too. When you use your laptop as a monitor, the sound might still play from the main PC’s speakers. You often need to change the audio output in the software settings.
People also expect gaming performance over remote software. The lag will make most games unplayable. For gaming, you must use a capture card for a good experience.
Finally, they give up too quickly. Some methods require a bit of troubleshooting. Check online forums for your specific software if you get stuck.
Take your time and follow the guides. The reward of a free second screen is worth the effort.
Tips for the Best Experience
Want your setup to work as smoothly as mine? Here are my top tips.
Use a wired network if you can. Plug both your PC and laptop into your router with Ethernet cables. This gives a much faster, more stable connection for remote desktop software.
Lower the display resolution on the main PC before connecting. A 1080p screen will stream much faster than a 4K screen. Your laptop screen is probably 1080p anyway.
Close any programs you don’t need on the main PC. This frees up resources and makes the remote connection smoother. It’s a simple trick that helps a lot.
For capture cards, use the official software that comes with it. Third-party apps can sometimes cause driver issues. The Elgato software, for example, is very reliable for their devices.
Position your laptop close to your main setup. This makes using one keyboard and mouse easier. Some software even lets you share the clipboard between computers.
Practice with the method before you need it for something important. Get comfortable with the connection process. That way, when you need to use your laptop as a monitor, it’s quick and easy.
Safety and Things to Avoid
Your data’s safety is important. Always use trusted software from official sources.
When using remote desktop software, make sure you have a strong PIN. Don’t use something simple like “1234.” The CISA recommends strong passwords for all remote access.
Be careful on public Wi-Fi. I would not recommend using remote desktop on a coffee shop network. Someone could potentially intercept the data.
Don’t download “cracked” or free versions of paid remote software. They often contain malware. Stick with the well-known free options like Chrome’s tool or Windows Remote Desktop.
Avoid putting physical stress on your laptop’s ports. If you use a capture card, don’t let the cable dangle and pull on the USB port. Use a cable that’s the right length.
Never force a cable into a port. If an HDMI cable doesn’t slide in easily, it’s probably the wrong type. Check that you are not using a mini or micro HDMI cable by mistake.
Following these simple rules keeps your gear safe. It lets you use your laptop as a monitor without any worries.
Frequently Asked Questions
Can I use my laptop as a monitor for a PlayStation 5?
Yes, but you need a capture card. Plug the PS5’s HDMI into the capture card, and the card into your laptop’s USB port. Use the capture card software to see the screen.
Can I use my laptop as a monitor with just an HDMI cable?
Almost certainly not. A laptop’s HDMI port is for output only. You cannot send a video signal into it with a normal cable. You need software or a capture device.
Is there a way to use my laptop as a monitor for free?
Yes, remote desktop software is free. Chrome Remote Desktop or Windows Remote Desktop cost nothing. They are great free ways to use your laptop as a monitor.
Can I use my laptop as a monitor for a Nintendo Switch?
You can, again with a capture card. The Switch’s HDMI output works just like a PS5 or Xbox. This is a popular way for travelers to game on a laptop screen.
Will using my laptop as a monitor damage it?
No, using software or a proper capture card will not cause damage. It’s just displaying video like it would for its own system. Avoid forcing cables into ports.
Can I use my laptop as a monitor for a security camera?
If the camera has an HDMI output, you can use a capture card. Many security camera systems also have their own PC software. You could view that software remotely on your laptop.
Conclusion
So, can you use your laptop as a monitor? The answer is a clear yes. You have several good options to choose from.
For general computer use, try free remote desktop software first. It’s simple and gets the job done. For gaming consoles or cameras, invest in a basic capture card.
I hope this guide showed you how possible it is. That old laptop in your closet has new life as a handy second screen. Give one of these methods a try this weekend.
You might be surprised how useful it is. I use my old laptop as a monitor for my work PC all the time. It sits right next to my main screen showing my email and calendar.