Yes, you can use your laptop as a monitor for another computer or game console. Learning how to use a laptop as a monitor gives you a second screen without buying new gear.
This is a great way to get more done. You can see two things at once. It can also help you play games from a console on a bigger screen.
I’ve tried all the main ways to do this. Some are easy and free. Others need a cable or a program.
This guide will show you every method. I’ll tell you which one works best for your needs.
What Does It Mean to Use a Laptop as a Monitor?
Let’s get clear on what we’re doing. A laptop screen is not like a regular monitor.
Most laptop video ports are for output only. They send a signal out to a bigger screen. They don’t take a signal in from another device.
So, you can’t just plug a cable in. You need to use a workaround. The goal is to see another device’s screen on your laptop.
You might want to do this for a desktop PC. Maybe you want to see your PlayStation screen on your laptop. The method you pick depends on your goal.
I’ll walk you through each option. We’ll start with the easiest ones first.
Method 1: Use Built-in Windows Projection
This is the best free way for Windows users. It uses your Wi-Fi network. Both devices need to be on the same network.
First, on the PC you want to see, press Windows Key + P. This opens the projection menu. Choose “Connect to a wireless display.”
Now, on your laptop, go to Settings. Click on System, then Projecting to this PC. Turn on the setting that says “Available everywhere.”
The first PC should now see your laptop. Click on your laptop’s name to connect. You might see a code to confirm.
After a few seconds, the other PC’s screen will show up. You can use your laptop like a second monitor. This is a key part of how to use a laptop as a monitor.
It works well for office tasks. The speed is okay for documents and web browsing. It’s not great for fast games or videos.
Method 2: Third-Party Software Solutions
If the built-in way is too slow, try software. Programs like SpaceDesk or Splashtop work better. They are made for this job.
You install a small server on your main computer. Then you install the viewer on your laptop. They talk to each other over your network.
The picture updates faster this way. You can even play some games. The lag is much less than the Windows method.
Some programs are free for basic use. Others cost money for the best features. I’ve used SpaceDesk and it works great.
This is another solid way for how to use a laptop as a monitor. It gives you more control. You can change the screen quality to match your network speed.
Just follow the install steps on their website. It usually takes ten minutes to set up.
Method 3: Using a Capture Card
This method is for game consoles. Want to see your Xbox on your laptop? A capture card is the tool you need.
A capture card takes a video signal in. It sends it to your laptop over USB. Your laptop sees it like a webcam feed.
You plug your console’s HDMI into the card. Then plug the card into your laptop’s USB port. Use software like OBS to see the picture.
This gives you almost no lag. It’s perfect for gaming. The picture looks just like it does on your TV.
Capture cards cost money. But they are the best way for how to use a laptop as a monitor for gaming. I use one for my Nintendo Switch.
You can find good ones for under fifty dollars. Look for cards that say “low latency.”
Method 4: HDMI Input on Rare Laptops
A few special laptops have an HDMI-in port. This port can take a video signal from another device. It’s not common, but it exists.
How do you know if your laptop has it? Look at the ports on the side. An HDMI port might have a tiny label saying “In” or “Out.”
If it says “In,” you are in luck. You can plug another computer right in. It will work just like a regular monitor.
This is the simplest way for how to use a laptop as a monitor. No software, no network. Just one cable.
Gaming laptops sometimes have this feature. Some business models do too. Check your manual to be sure.
If you have it, you’re all set. If not, don’t worry. The other methods work just fine.
Step-by-Step Guide for Windows Projection
Let’s do the Windows method step by step. I’ll make it super simple. Follow along with your own laptop.
Step one: Make sure both computers are on. Connect them to the same Wi-Fi. This is very important for the connection to work.
Step two: On your laptop, click the Start button. Type “Projecting to this PC” and open that setting. Turn on the first switch that says “Some Windows and Android devices can project.”
Step three: On the other PC, press the Windows key and the letter P. A sidebar will pop up on the right. At the bottom, click “Connect to a wireless display.”
Step four: Wait a moment. Your laptop’s name should show up in the list. Click on it to start the connection.
Step five: A number will pop up on both screens. If they match, click “Yes” on your laptop. Now the other screen appears.
You did it! That’s how to use a laptop as a monitor with Windows. You can move your mouse between the two screens.
Common Problems and How to Fix Them
Sometimes things don’t work right away. Don’t get upset. Here are fixes for common issues.
Problem: The laptop doesn’t show up in the list. Fix: Check your Wi-Fi. Both devices must be on the same network. Restart the projection settings on both.
Problem: The connection is very slow and laggy. Fix: Your Wi-Fi might be too busy. Try moving closer to your router. Or use a software method instead for better speed.
Problem: The screen is blurry or the wrong size. Fix: On your laptop, go back to the projection settings. Change the option for “When I project” to a different screen size.
Problem: You get a black screen. Fix: On the main PC, press Windows Key + P again. Make sure “Extend” or “Duplicate” is chosen, not “Second screen only.”
Working through these steps is part of learning how to use a laptop as a monitor. It gets easier each time you do it.
Best Uses for a Laptop Second Screen
Why would you even want to do this? I’ll give you some great reasons. It can change how you work and play.
Use it for a coding project. Keep your code on one screen and your app on the other. It saves you from switching windows all the time.
Watch a tutorial on your main PC. Follow the steps on your laptop screen. You see both at once without covering anything up.
Play a console game in another room. Use your laptop as the screen near your bed. It’s more comfortable than sitting at a desk.
Help a family member with their computer. See their screen on your laptop to guide them. You can point out exactly what to click.
These ideas show the power of how to use a laptop as a monitor. It turns old gear into something new.
Software Options Compared
Let’s look at the top programs for this job. I’ve tested a few. Here’s what I found.
SpaceDesk is my top pick. The driver is free and works well. It’s easy to set up on Windows 10 and 11.
Splashtop is another good one. It’s known for remote access. But it also works for using your laptop as a second screen.
Parsec is built for gaming. It has very low lag. This is great if you want to play PC games from another room.
All these tools help you learn how to use a laptop as a monitor. They each have free versions to try first.
Download one and play with it. See which one feels best on your network. Your choice depends on what you need it for.
Important Tips for Best Performance
Want the smoothest experience? Follow these tips. They make a big difference.
Use a wired network if you can. Plug both computers into your router with Ethernet cables. This gives you the fastest connection.
Lower the screen resolution on the laptop. A 1080p screen uses less data than a 4K screen. This reduces lag.
Close other programs on both computers. They take up network and computer power. Give all the resources to your screen sharing.
Keep both devices plugged into power. Screen sharing uses a lot of battery. You don’t want your laptop to die in the middle of your work.
Following these tips is key for how to use a laptop as monitor without frustration. A good setup makes everything better.
Safety and Security Notes
Is it safe to share your screen like this? Yes, if you are careful. Here’s what to know.
On your own home network, it’s very safe. The signal doesn’t go out to the internet. It stays between your two devices.
If you use software, download it from the official website. Don’t get it from a random link. This keeps bad software off your computer.
The Cybersecurity and Infrastructure Security Agency (CISA) says to be careful with network sharing. Only turn it on when you need it.
When you’re done, turn off the projection setting. This closes the door to your laptop screen. It’s a good habit to have.
Learning how to use a laptop as a monitor is safe. Just use common sense like with any computer task.
Frequently Asked Questions
Can I use my laptop as a monitor for a PlayStation?
Yes, but you need a capture card. Plug the PlayStation’s HDMI into the card. Then connect the card to your laptop’s USB port.
How to use laptop as monitor for a desktop without Wi-Fi?
You can use a software like SpaceDesk with a direct Ethernet cable. Connect the two computers with a network cable. Set up a direct network between them.
Does this work on Mac laptops?
Mac has a feature called Target Display Mode, but only on older models. For newer Macs, you need third-party software. Luna Display is a popular hardware dongle for this.
How to use laptop as monitor for a security camera?
Many security camera systems have desktop software. Install that software on your laptop. Then you can view the camera feed full screen on your laptop.
Is there a way to do this with just a cable?
Only if your laptop has a video input port, which is rare. Most laptops need software or a network. A single USB-C cable might work between two modern laptops with specific software.
Will using my laptop as a monitor hurt it?
No, it won’t hurt your laptop. It’s just showing video like it does for its own programs. The extra work might make it a bit warmer and use more battery.
Conclusion
So, how to use laptop as monitor? You have several good choices now. The best one depends on what devices you have.
For two Windows PCs, try the built-in projection first. It’s free and easy. For a game console, get a capture card for the best picture.
I hope this guide helped you. It’s a handy trick to know. You can turn any laptop into a useful second screen.
Give one of the methods a try this week. Start with the Windows projection if you can. You might find a whole new way to use your old laptop.