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How to Connect a Laptop to Your TV (Wired and Wireless)

Laptop connected to a TV

Short answer: the simplest, most reliable way to connect a laptop to a TV is a single HDMI cable, plug it in, switch the TV to that HDMI input, and press Windows + P to choose how to display. For a cable-free option, cast wirelessly with Chromecast, Miracast, or AirPlay. Here is each method and how to fix common problems.

The easy way: HDMI cable

  1. Connect an HDMI cable from the laptop to a TV HDMI port.
  2. On the TV, switch the Source/Input to that HDMI port.
  3. On Windows, press Windows + P and pick Duplicate (same on both) or Extend (TV as a second screen).

HDMI carries video and audio in one cable and needs no setup, this is the go-to for movies and presentations.

No HDMI port? Use an adapter

Thin laptops often have only USB-C. A USB-C to HDMI adapter bridges the gap and works exactly like a direct HDMI connection.

Wireless casting options

MethodWorks with
Chromecast / Google TVCast a Chrome tab or screen
Miracast (Windows Cast)Many smart TVs, Windows + K
AirPlayMac to Apple TV / AirPlay TVs

On Windows, press Windows + K to find nearby wireless displays.

Fixing common problems

  • No sound on TV: right-click the volume icon > Sound settings, and set the TV as the output device.
  • Nothing shows: confirm the TV is on the correct HDMI input and press Windows + P again.
  • Wrong resolution: in Display settings, match the resolution to the TV.

The non-obvious tip: use Extend, not Duplicate, for real work

Most people leave it on Duplicate, but Extend is far more useful: your laptop screen and the TV become two separate displays, so you can keep notes or controls on the laptop while the TV shows only the movie or slideshow. For presentations this means the audience sees just your slides while you see your presenter notes, a much cleaner setup than mirroring everything.

Frequently asked questions

What is the easiest way to connect a laptop to a TV?

An HDMI cable. Plug it in, switch the TV to that HDMI input, and press Windows + P to choose Duplicate or Extend. It carries video and audio with no setup.

How do I connect a laptop with only USB-C?

Use a USB-C to HDMI adapter, which works just like a direct HDMI connection.

How do I connect a laptop to a TV wirelessly?

Use Chromecast to cast, Miracast on Windows (press Windows + K), or AirPlay on a Mac to an Apple TV or AirPlay-compatible TV.

Why is there no sound on my TV?

Right-click the volume icon, open Sound settings, and set the TV as the output device. HDMI carries audio but Windows may not switch to it automatically.

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