Mac User Guide
- Welcome
- What’s new in macOS Tahoe
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- Intro to Apple Intelligence
- Translate messages and calls
- Create original images with Image Playground
- Create your own emoji with Genmoji
- Use Apple Intelligence with Siri
- Find the right words with Writing Tools
- Summarise notifications and reduce interruptions
- Use ChatGPT with Apple Intelligence
- Apple Intelligence and privacy
- Block access to Apple Intelligence features
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- Intro to Continuity
- Use AirDrop to send items to nearby devices
- Hand off tasks between devices
- Control your iPhone from your Mac
- Copy and paste between devices
- Stream video and audio with AirPlay
- Make and receive calls and text messages on your Mac
- Use your iPhone internet connection with your Mac
- Share your Wi-Fi password with another device
- Use iPhone as a webcam
- Insert sketches, photos and scans from iPhone or iPad
- Unlock your Mac with Apple Watch
- Use your iPad as a second display
- Use one keyboard and mouse to control Mac and iPad
- Sync music, books and more between devices
- Resources for your Mac
- Resources for your Apple devices
- Copyright and trademarks

Use your TV as a display with Mac
You can use many kinds of TVs as computer displays. To connect your Mac to your TV, you need a video cable that connects your computer’s display port to the video input port on your TV. If you can’t find a cable that connects the ports on your Mac and TV, you may need an adapter for the cable. You can also use AirPlay. See Stream video and audio with AirPlay.
Connect your Mac to your TV
Connect one end of the video cable (or an adapter, if necessary) to the computer’s Thunderbolt or HDMI port, then connect the other end of the cable to the TV’s video input port.
Follow the onscreen instructions to choose whether to share a window or to mirror or extend your Mac screen on your TV. Select Set as Default to save your preferences and skip this step the next time you connect to a TV.
If you need to adjust the resolution on your TV, choose Apple menu
> System Settings, then click Displaysin the sidebar. (You may need to scroll down.)
Select a resolution, or click Default to automatically use the best resolution.
If you want your HDTV to play audio as well as video from your Mac, choose Apple menu > System Settings, click Sound
in the sidebar (you may need to scroll down), then click Output.
Select your HDTV in the list of devices. If you want to play audio on a different device (such as your computer’s speakers or an AV receiver that’s part of your sound system), select it instead.
If the picture from your Mac doesn’t fill the TV screen
If you connected your Mac to a TV and the images don’t fill the TV screen, try turning on Overscan.
On your Mac, choose Apple menu
> System Settings, then click Displaysin the sidebar. (You may need to scroll down.)
Select Overscan. (This option is only available on supported TVs.)
See the Apple Support article Fix overscan or underscan on your TV or projector.
You can also choose which screen to optimise for in Displays settings.