How to Connect Your PC to Your TV

The fastest way to connect your PC to your TV

The simplest connection depends on what ports your PC and TV both have. Most modern TVs have an HDMI port (a flat, rectangular slot), and most PCs have at least one HDMI output. If both devices have HDMI, buy an HDMI cable, plug one end into your PC and the other into any HDMI port on your TV, then switch the TV to that HDMI input using the remote. Your PC screen should appear on the TV within seconds.

If your PC doesn't have HDMI, check what video outputs it does have — common older options include DisplayPort, DVI, or VGA (a port with three rows of small holes). Your TV may have one of these ports too, though you'll need the matching cable. If your TV only has HDMI and your PC has a different port, you can buy an adapter (DisplayPort to HDMI, DVI to HDMI, or VGA to HDMI), though the quality and reliability vary depending on the adapter quality.

Wireless connection is also an option if your PC and TV both support it. Windows PCs can cast to compatible TVs using Miracast, and some TVs have built-in Miracast receivers. You can also use external devices like Chromecast, Apple TV, or Roku if your TV doesn't have wireless built in — these plug into the TV's HDMI port and let your PC send video wirelessly.

Key Takeaways

HDMI is the standard connection: plug an HDMI cable from your PC into any HDMI port on your TV, then select that input on the TV remote.
If your PC lacks HDMI, check for DisplayPort, DVI, or VGA ports and buy the matching cable or an adapter.
Wireless casting works if both your PC and TV support Miracast, or if you add a Chromecast, Apple TV, or Roku device to your TV.
After connecting, you may need to adjust display settings in Windows to extend your screen, duplicate it, or use the TV as your only display.

Understanding HDMI and wired connections

HDMI carries both video and audio through a single cable, so you won't need a separate audio cable in most cases. When you plug in an HDMI cable, Windows usually detects the TV automatically and sends a signal to it. The TV may show your desktop right away, or you may need to press the Input or Source button on the TV remote to switch to the HDMI port you plugged into.

If nothing appears on the TV after you've switched to the correct input, right-click on your Windows desktop, select "Display settings," and look for an option to detect or connect to a display. Windows will scan for connected devices and may find your TV. You can also try unplugging the HDMI cable and plugging it back in, or restarting your PC.

HDMI cables are inexpensive and widely available — a basic cable costs a few dollars. Longer cables (25 feet or more) work fine for video, though very long runs occasionally pick up interference. If you're running cable through walls or conduit, buy a cable rated for in-wall use, which has better shielding.

What to do if your PC and TV don't have matching ports

Older PCs often have DisplayPort or DVI outputs instead of HDMI. DisplayPort is common on gaming PCs and workstations; DVI is older but still found on some desktop machines. If your TV has one of these ports, use the matching cable. If your TV only has HDMI, you'll need an adapter.

Adapters work, but quality varies. A DisplayPort-to-HDMI adapter is usually reliable because DisplayPort can output HDMI signals natively. DVI-to-HDMI adapters are less consistent — some work well, others cause flickering or no signal at all. VGA-to-HDMI adapters are the least reliable because VGA is analog and HDMI is digital, so the adapter has to convert the signal, which can degrade picture quality.

Before buying an adapter, check your PC's manual or manufacturer's website to confirm which video port you have. Look at the port shape: HDMI is flat and rectangular; DisplayPort is rectangular with a notch on one corner; DVI has two rows of pins; VGA has three rows of holes. If you're unsure, take a photo and show it to a store employee or search for your PC model online.

Using wireless casting instead of cables

If you want to avoid cables, check whether your TV supports Miracast, which is built into many modern TVs from Samsung, LG, Sony, and others. To cast from a Windows PC, press the Windows key and P together, then select "Connect to a wireless display." Windows will search for nearby Miracast receivers. If your TV appears in the list, click it and enter a PIN if prompted.

Miracast works over your home Wi-Fi network and has a range of about 30 feet. The connection is usually stable, though it can lag slightly behind the wired connection — this matters if you're playing games or watching video, but not for everyday tasks like browsing or documents. If Miracast disconnects frequently, move your PC closer to the TV or router, or check that both devices are on the same Wi-Fi network.

If your TV doesn't have Miracast built in, you can add wireless casting by plugging a Chromecast, Apple TV, or Roku device into the TV's HDMI port. These devices have their own wireless receivers and work similarly to Miracast. Chromecast is the cheapest option and works well with Windows PCs. Apple TV is better if you also use Apple devices. Roku is a good middle ground and works with most devices.

Adjusting display settings after you connect

Once your TV is connected, Windows gives you four display options. You can duplicate your screen (show the same thing on both PC and TV), extend your display (use the TV as a second monitor), use only the TV, or use only your PC monitor. To change this, right-click the desktop, select "Display settings," and look for the "Multiple displays" dropdown near the top of the window.

Duplicate mode is useful for presentations or watching video with others. Extend mode lets you drag windows between your PC monitor and TV, giving you more screen space. If you want to use the TV as your main display and turn off your PC monitor, select "Use this display only" for the TV in Display settings.

You can also adjust the resolution and refresh rate of the TV in Display settings. Most TVs work best at their native resolution — check your TV's manual or settings menu to find it. If the picture looks blurry or stretched, try lowering the resolution until it looks sharp. Refresh rate (measured in Hz) is less important for everyday use, but gaming benefits from higher refresh rates like 120 Hz if your TV supports it.

Troubleshooting when the connection doesn't work

If your TV shows "No Signal" after you plug in the cable, first check that you've selected the correct HDMI input on the TV. Use the remote to press Input or Source, then highlight the HDMI port number you plugged into. If the TV has multiple HDMI ports, try each one — sometimes one port works better than others.

If the TV still shows no signal, unplug the cable from both the PC and TV, wait 10 seconds, and plug it back in. Restart your PC. If you're using an adapter, try a different adapter if you have one, because adapters fail more often than cables.

If the PC detects the TV but the picture is distorted, flickering, or has strange colors, the cable may be damaged or the connection may be loose. Wiggle the cable gently at both ends to make sure it's seated firmly. If that doesn't help, try a different cable. If you're using a very long cable (over 50 feet), the signal may degrade — try a shorter cable or an active cable designed for long runs.

For wireless connections, if your PC can't find the TV, make sure both devices are on the same Wi-Fi network and that the TV's wireless feature is turned on. Check your TV's settings menu for an option like "Miracast" or "Screen Mirroring" and make sure it's enabled. Restart both the PC and TV, then try again.

Audio considerations when connecting to a TV

HDMI carries both video and audio, so if you're using an HDMI cable, sound should come through the TV's speakers automatically. If you don't hear anything, check the TV's volume and make sure it's not muted. In Windows, right-click the volume icon in the system tray and select "Open Volume mixer" to confirm that audio is being sent to the TV.

If you're using an adapter (like DVI-to-HDMI or DisplayPort-to-HDMI), the adapter may not carry audio. In that case, you'll need a separate audio cable — a 3.5 mm headphone jack from your PC to the TV's audio input, or USB audio if your TV supports it. Check your adapter's documentation to see whether it passes audio.

If you want better sound than the TV's built-in speakers, you can connect external speakers or a soundbar to the TV instead of the PC. The TV will receive audio from the HDMI cable and send it to the speakers. This is the simplest way to improve audio without changing your PC setup.

Frequently Asked Questions

Do I need a special HDMI cable for my TV?

No. Any HDMI cable works with any HDMI port — there's no such thing as an HDMI cable made specifically for TVs or PCs. Expensive cables don't perform better than cheap ones for video quality. Buy a basic HDMI cable from any electronics store or online retailer.

Can I connect my PC to my TV over the internet instead of Wi-Fi?

Not directly. Miracast and Chromecast use your local Wi-Fi network, not the internet. If you want to stream from a PC to a TV in a different location, you'd need to use a streaming service or remote desktop software, which is a different setup than connecting a local TV.

Will connecting my PC to my TV slow down my computer?

No. A wired HDMI connection has no impact on your PC's performance. Wireless casting uses a small amount of Wi-Fi bandwidth and CPU resources, but not enough to noticeably slow down everyday tasks. Gaming or video editing may see a slight performance hit with wireless casting, so wired is better for those.

What if my TV is too far from my PC to run a cable?

Use wireless casting with Miracast, Chromecast, Apple TV, or Roku instead. These work over Wi-Fi and have a range of 30 feet or more, depending on your router and walls. If wireless doesn't work reliably, you can run a long HDMI cable through walls or conduit — cables up to 100 feet are available and work fine.

Can I use my TV as a monitor all the time?

Yes. You can set the TV as your primary display in Windows Display settings and use it like any monitor. Keep in mind that TVs are usually larger and lower resolution than PC monitors, so text and small details may look blurry. Sitting very close to a large TV can also cause eye strain. For full-time use, a monitor designed for computers is usually more comfortable.

This guide is for general information only and is not medical, financial, legal, or other professional advice. For decisions specific to your situation, consult a qualified professional. See our Editorial Policy.