How to Connect Your PC to an LG Smart TV: 3 Easy Methods

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Step-by-step guide to mirroring your PC on your LG TV

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Using Screen Share (Windows 10)

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Using Screen Share (Windows 11)

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With an HDMI Cable

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Expert Q&A

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Tips

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Warnings

Want to show media from your computer on your LG smart TV? If both your TV and your PC are Wi-Fi compatible, you can easily mirror anything from your PC to your LG TV—even sound! This How.com.vn article will teach you how to connect your PC to your TV over Wi-Fi using LG’s Screen Share, and how to use an HDMI cable in the absence of Wi-Fi.

Things You Should Know

To use the Screen Share feature on LG TVs, your TV and computer need to be on the same Wi-Fi.
For Windows 10, go to Settings > Display > Connect to a Wireless Display.
For Windows 11, go to Settings > System > Display > Multiple displays > Connect to a wireless display.
You can also use an HDMI cable to connect your PC to your TV.

Method 1

Method 1 of 3:

Using Screen Share (Windows 10)

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1
Turn on your LG TV. Your TV needs to be powered on to connect your computer to it.^{[1]XResearch source}
- Note that your computer needs to be on the same wireless network as your TV for this method.
- For Mac information, check out our expert guide to connecting a Mac computer to a TV.
This will open a new window showing you the Windows Settings app.
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This is in the left menu.
It’s under the “Multiple displays” section.
This will appear in the “CONNECT” menu on your computer.
6
Use your remote to click Accept on your LG TV. This will be an option on the pop up menu asking if you want to accept the screen share request from your computer. You’re done! Your computer’s screen should appear mirrored on your TV.
- If you’re throwing out an old TV and replacing it with your LG TV, see our expert guide to disposing of TV sets.

Method 2

Method 2 of 3:

Using Screen Share (Windows 11)

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1
Turn on your LG TV. Your TV needs to be powered on during this process.
- Note that your computer needs to be on the same wireless network as your TV for this method.
This will open a new window showing you the Windows Settings app.
This is in the left menu.
It’s an option on the System settings page.
A drop down menu with additional options will appear.
A small menu will appear with a list of nearby wireless displays.
This will appear in the “Available displays” menu on your computer.
8
Use your remote to click Accept on your LG TV. This will be an option on the pop up menu asking if you want to accept the screen share request from your computer. You’re done! Your computer’s screen should appear mirrored on your TV.
- If you’re looking for new things to watch, check out how to watch TV on your computer.

Method 3

Method 3 of 3:

With an HDMI Cable

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1
Make sure that your PC has an HDMI port. HDMI ports resemble thin, wide slots which taper down to a bottom which is narrower than the top. Most modern PCs have at least one free HDMI port.
- If your computer doesn't have an HDMI port, you'll need to buy an output to HDMI adapter where output is your computer's video output.
- Common non-HDMI output options include DisplayPort, USB-C, and DVI or VGA (older computers only).
2
Get a cable that has room to move. Measure the space between your TV and your PC (if not using a laptop), then get an HDMI cable a few feet longer than that. This ensures that you have enough slack to work with if things need to be moved around.
- There is little difference between an HDMI cable that costs $5 and a cable that costs $70. Since HDMI is a digital signal, it's either "on" or "off", and the cable doesn't affect signal quality. The difference in quality is only noticeable with longer cables.
- HDMI cables are compliant with standards up to 40 feet (12.2 m) in length. There are longer cables available that will technically still work, but they are likely not complying with standards.^{[2]XResearch source}
- If you need to run HDMI over extremely long distances, you'll likely need an amp to boost the power.
3
Attach one end of the HDMI cable to your TV. The HDMI cable should plug into one of the "HDMI" inputs at the back (or on the side) of the TV.
- If your LG TV has more than one HDMI port, the port will have a number on it. This number pertains to the HDMI channel to which you'll need to switch later.
4
Attach the other end of the HDMI cable to your PC. Plug the HDMI cable into the port on your computer.
- If you're using an adapter for your PC's video output, plug the adapter into the PC, then plug the HDMI cable into the HDMI port on the outside of the adapter.
Press the Power button on your LG TV remote to turn it on, if you haven't already done so.
Use the TV's "Input" button to switch to the HDMI number that matches the input into which you plugged in the HDMI cable. You should now see your PC's screen appear on the TV.
7
Select your LG TV as the sound output. If your PC's sound is still coming from your computer and not your TV, do the following:
- Open Start
- Type in sound
- Click the speaker-shaped Sound option.
- Select your LG TV in the Playback tab.
- Click Set Default
- Click Apply, then click OK
Now that you can see your PC's screen on the LG TV, you can watch online content, play movies from your personal library, display photos, show your web browser, and virtually anything else on your PC—everything you do will appear on the TV.

Expert Q&A

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How do I connect my old computer to a smart TV?
Nicole Levine, MFA
How.com.vn Technology Writer
Nicole Levine is a Technology Writer and Editor for How.com.vn. She has more than 20 years of experience creating technical documentation and leading support teams at major web hosting and software companies. Nicole also holds an MFA in Creative Writing from Portland State University and teaches composition, fiction-writing, and zine-making at various institutions.
Nicole Levine, MFA
How.com.vn Technology Writer
Expert Answer
Good question! Check the video ports on your computer and see if any match up with ports on your TV. Some older computers might have DVI ports, which many TVs also have. If not, you probably just have a VGA port, in which case, you'll just need a VGA to HDMI adapter. They're very easy to find--just connect the VGA end of the adapter to your old PC, and then HDMI end to your smart TV. You can use our HDMI instructions when using your adapter.
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Question
I would like to select movies to play from my PC instead of doing it in the app on the Smart TV. Can I control the Amazon Prime Video app from my PC?
Nicole Levine, MFA
How.com.vn Technology Writer
Nicole Levine is a Technology Writer and Editor for How.com.vn. She has more than 20 years of experience creating technical documentation and leading support teams at major web hosting and software companies. Nicole also holds an MFA in Creative Writing from Portland State University and teaches composition, fiction-writing, and zine-making at various institutions.
Nicole Levine, MFA
How.com.vn Technology Writer
Expert Answer
Yes! Just install the Prime Video app on your PC, or access Prime Video in your web browser. When you cast or connect with HDMI, anything you play on your computer, including movies and shows on Amazon Prime Video, will play on your TV. This will also work with other websites and apps, including YouTube, Netflix, and Hulu.
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Mini computer connected to LG ThinQ nanocell 65" TV. When playing back movies (.mkv) from computer hard drive, there are shifting greyish shadows on screen during dark scenes. Codec problem?
How.com.vn Staff Editor
Staff Answer
This answer was written by one of our trained team of researchers who validated it for accuracy and comprehensiveness.
How.com.vn Staff Editor
Staff Answer
This actually might be related to a poor Wi-Fi signal. If you're using Wi-Fi, try connecting with an HDMI cable instead to see if the problem still exists. If so, you might need to move the computer closer to the TV or try a signal booster.
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Tips

All LG smart TVs (and smart TVs in general) have HDMI ports.
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HDMI cables will rarely cost more than $10 to $15, especially when buying them online.
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LG offers an app called SmartShare that allows you to share files from your computer directly to the TV. However, since the release of Windows 8.1, SmartShare is no longer necessary to use.
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