How to Connect Devices with HDMI Cables

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A step-by-step guide to properly connecting HDMI cables

Written by Hannah Dillon

Last Updated: January 30, 2026 Fact Checked

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Connect a Computer to a TV

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Home Theater Systems

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Gaming Consoles

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Q&A

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Tips

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Warnings

This wikiHow teaches you how to use HDMI cables to connect computers, entertainment systems, and game consoles to TVs. HDMI allows you to quickly connect your electronic devices without fumbling with color-coded cables or multiple plugs; a single HDMI cable carries both video and audio signals from a device to your display.

Connecting Devices with HDMI Cables

Plug one end of an HDMI cable into the first device (e.g., console or computer), and the other into a second device (e.g., TV or monitor).
HDMI cables are backward-compatible, so you can use any cable with any supported device.
If your device doesn't have an HDMI port, you can get an adapter for any video port it does have.

Method 1

Method 1 of 3:

Connect a Computer to a TV

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1
Locate the HDMI ports. An HDMI port resembles a thin, wide slot with a slightly tapered base. Not all computers have HDMI ports, but most newer ones do. HDMI ports are typically located on the sides of laptops and on the backs of desktop computers.
- If your desktop computer does not have an HDMI port, you may need to install a new video card.
- If your computer doesn't have an HDMI port, but has another output such as DVI or DisplayPort, you can purchase an adapter that will allow you to connect an HDMI cable. If you are converting DVI to HDMI, you will need to use a separate cable for audio, as DVI does not transfer an audio signal.
- There are also USB-to-HDMI adapters for computers with no video ports.
Typically, the wider end of the HDMI cable will be facing up.

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3
Plug the other end of the HDMI cable into your TV. It will fit into the HDMI slot on the back of your TV, though sometimes the HDMI slot faces parallel to the TV screen rather than away from it.
- If the TV is on, your computer will usually automatically detect it and switch its display output to the TV.
4
Switch to the HDMI input using your TV remote. If your TV only has one HDMI input, switch to that input's number; otherwise, you will need to find the HDMI input that your computer is connected to.
- The HDMI slot on your TV will typically have a number beside it; that number is the input number for HDMI.
- In most cases, you'll press Input on the remote to bring up the Input menu, then use the remote's arrows to navigate to the HDMI input number (e.g., "Input 3" or "HDMI 2").
5
View your computer's display settings. Common display settings include using only the TV's screen as the video output, as well as using both the TV screen and the computer screen ("mirroring"). Choose the mode that works best for you in your computer's Display menu. Here's how to open your computer's Display settings:
- Windows:
  - Open the Settings app (the fastest way is to right-click the Windows icon in your taskbar and click Settings).
  - Click System in the left-hand sidebar.
  - Click Display.
- Mac:
  - Click the Apple menu at the top of the screen.
  - Click System Settings.
  - Click on Displays in the sidebar. It has a blue icon with a sun.

Method 2

Method 2 of 3:

Connect a Home Theater System

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1
Locate the HDMI ports on all of the devices. An HDMI port resembles a thin, wide slot with a slightly tapered base. If you have a receiver with enough HDMI input ports and your TV has at least one HDMI input, you should be able to connect all your devices to achieve the best possible quality in your home theater.
- Most new receivers have multiple HDMI inputs for connecting all your HDMI-capable devices, as well as an HDMI output for connecting to your TV.
- You can buy an HDMI splitter for a one-port receiver.
2
Check which HDMI version your TV supports. Check whether your TV supports HDMI 1.4 with ARC (Audio Return Channel). This allows the TV to send audio back to the receiver, which routes your TV sound through your home theater speakers. Most TVs made after 2009 support HDMI 1.4 and newer.
- If your TV does not support HDMI 1.4, you will need to use a separate audio cable to connect the TV to the receiver (e.g., digital optical).^{[1]
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- If you are watching TV through a cable box via your receiver, you don't need to worry about ARC since the sound is coming from the cable box into the receiver.^{[2]
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3
Connect your devices to the receiver's HDMI inputs. These could include DVD/Blu-ray players, game consoles, and more. If you have limited HDMI inputs, use HDMI cables for the most recent devices first, as they will benefit the most.
- For example, if your receiver only has two HDMI inputs and you have a Roku, a PlayStation 4, and a DVD changer, plug the Roku and the PS4 in with HDMI, and use a component connection for the DVD player. The Roku and PS4 will benefit much more from the HDMI connections.
- HDMI plugs only go in one way, so don't force any connections.
Plug one end of an HDMI cable into the receiver's HDMI slot, then plug the other end into the TV. This allows the image from all the devices connected to your receiver to appear on your TV.
5
Use the receiver to switch between inputs. Since your devices are now routed through the receiver, you can set the TV to the HDMI input you plugged into the receiver and switch between inputs using your receiver remote.
- Since everything is connected via HDMI, all sound from your devices should go through your receiver's speaker setup.
- Most devices should configure automatically when they detect the HDMI connection, though you may need to tweak some settings for certain devices.
6
Connect your devices directly to your TV. If you aren't setting up a home theater system, you can still plug your HDMI devices directly into your TV and then control the inputs using your TV remote. Most modern TVs have at least two HDMI inputs.
- If you have more HDMI-capable devices than you do input ports on your TV, you can purchase an HDMI switch that will expand the number of available HDMI ports.
7
Enable HDMI-CEC (optional). HDMI-CEC allows you to use your TV remote to control your other HDMI devices. To enable HDMI-CEC, you'll have to access each device's settings menu.
- HDMI-CEC is called different things by different companies, including Anynet+ (Samsung), Aquo Link (Sharp), Regza Link (Toshiba), SimpLink (LG), and more. Refer to your TV's manual for more information.

Method 3

Method 3 of 3:

Connect a Game Console to a TV

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1
Locate the HDMI port on the back of your console. An HDMI port resembles a thin, wide slot with a slightly tapered base. Most modern consoles support HDMI, including PlayStation 3 and later, (most) Xbox 360 and later, the Wii U, and the Nintendo Switch family (including the Switch 2). The Wii, some Xbox 360s, and older consoles do not support HDMI.
- If you don't see an HDMI port on the back of your console, it doesn't support HDMI.
The HDMI slot will typically be on the back of the console, on either the left or right side.
3
Attach the other end of the cable to your TV. It will fit into the HDMI slot on the back of your TV, though sometimes the HDMI slot faces parallel to the TV screen rather than away from it.
- Make a note of the HDMI slot's input number while you're doing this.
4
Switch to the HDMI input using your TV remote. If your TV has only one HDMI input, simply switch to that input's number; otherwise, find the HDMI input your console is connected to.
- The HDMI slot on your TV typically has a number beside it; that number is the HDMI input number.
- In most cases, you'll press Input on the remote to bring up the Input menu, then use the remote's arrows to navigate to the HDMI input number (e.g., "Input 3" or "HDMI 2").
- If you can't find the input, turn on your console and switch through inputs until you see the console's screen.
5
Change your console's default connection if necessary. Most consoles will automatically detect the HDMI cable and attempt to configure the best settings, but you may need to go into the Video settings on your console and select "HDMI" as the input if you have multiple different cables.
- If HDMI is the only input available, your console will select it by default.
- You may be prompted to go through a short setup process when you start the console with HDMI for the first time.

Community Q&A

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Question

Can you plug your smart phone into the HDMI cable, and then the tv to watch Netflix?

Community Answer

You will need an adapter that plugs into your phone and plugs into an HDMI cable connected to your TV.

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What is the recommended max HDMI cable length for UHD high quality? How effective is transmission via cat5 cable and adapters?

Community Answer

As HDMI is digital, the length of the cable doesn't matter a lot. It might get slightly worse after 100ft (33m), but nothing else. Also, cat5 cables are outdated. Try to go for Cat5e or 6 for faster connection speed.

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How can I connect my HDMI TV to the Xfinity cable box that doesn't have an HDMI connection?

Community Answer

Most of Comcast's cable boxes come equipped with HDMI connections; you may want to speak with your cable provider about updating your cable box. You could also use standard red, white and yellow AV cables, or could purchase an adapter.

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Tips

HDMI cables connect much like a USB cable: they plug in and can only fit in one direction.

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When purchasing an HDMI cable, always buy one longer than you think you'll need. This gives you some room to move your equipment around and prevents the HDMI connectors from breaking.

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You can connect two HDMI cables with an HDMI Female-to-Female adapter. Since the HDMI signal is digital, you don't need to worry about picking up an expensive connector, and generally don't need to worry about the length of the connected cables as long as the total length is under 25 feet (7.6 m).

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Warnings

Decent HDMI cables are relatively cheap. Don't spend $50 on a gold-plated cable when a standard, $5 cable will do the same job.

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Avoid twisting, tugging, or stapling your HDMI cable, as this could cause it to malfunction.

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