macOS Sonoma 14
macOS Ventura 13
macOS Monterey 12
macOS Big Sur 11.0
macOS Catalina 10.15
macOS Mojave 10.14
macOS High Sierra
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Table of Contents
macOS User Guide
- Welcome
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- What’s in the menu bar?
- Work on the desktop
- Search with Spotlight
- Quickly change settings
- Use Siri
- Get notifications
- Open apps from the Dock
- Organize your files in the Finder
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- Connect to the internet
- Browse the web
- Preview a file
- Take a screenshot
- Change your display’s brightness
- Adjust the volume
- Use trackpad and mouse gestures
- Use Touch ID
- Print documents
- Keyboard shortcuts
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- Apps on your Mac
- Open apps
- Work with app windows
- Use apps in full screen
- Use apps in Split View
- Use Stage Manager
- Get apps from the App Store
- Install and reinstall apps from the App Store
- Install and uninstall other apps
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- Create and work with documents
- Open documents
- Mark up files
- Combine files into a PDF
- Organize files on your desktop
- Organize files with folders
- Tag files and folders
- Back up files
- Restore files
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- Change System Settings
- Choose your desktop wallpaper
- Add and customize widgets
- Use a screen saver
- Add a user or group
- Add your email and other accounts
- Automate tasks with Shortcuts
- Create Memoji
- Change your login picture
- Change the system language
- Make text and other items on the screen bigger
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- Set up a Focus to stay on task
- Set up Screen Time for yourself
- Use Dictation
- Send emails
- Send text messages
- Make a FaceTime video call
- Edit photos and videos
- Use Live Text to interact with text in a photo
- Start a Quick Note
- Get directions
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- Work across devices using Continuity
- Use iPhone as a webcam
- Use iPhone with Desk View
- Stream audio and video with AirPlay
- Use one keyboard and mouse to control Mac and iPad
- Hand off between devices
- Unlock your Mac with Apple Watch
- Make and receive phone calls on your Mac
- Sync music, books, and more between devices
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- Manage Apple ID settings
- Set your Apple ID picture
- What is iCloud?
- What is iCloud+?
- Store files in iCloud Drive
- Share and collaborate on files and folders
- Manage iCloud storage
- Use iCloud Photos
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- What is Family Sharing?
- Set up Family Sharing
- Set up Screen Time for a child
- Share purchases with your family
- Watch and listen together with SharePlay
- Share a Photo Library
- Collaborate on projects
- Find content shared with you
- Find your family and friends
- Play games with your friends
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- Play music
- Listen to podcasts
- Watch TV shows and movies
- Read and listen to books
- Read the news
- Track stocks and the market
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- Apple Music
- Apple TV+
- Apple Arcade
- Apple News+
- Podcast shows and channels
- Manage subscriptions in the App Store
- View Apple family subscriptions
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- Guard your privacy
- Use Mail Privacy Protection
- Control access to your camera
- Use Sign in with Apple for apps and websites
- Set up your Mac to be secure
- Keep your data safe
- Create a passkey
- Understand passwords
- Keep your Apple ID secure
- Find a missing device
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- Get started with accessibility features
- Vision
- Hearing
- Mobility
- Speech
- General
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- Connect an external display
- Use the built-in camera
- Connect a Bluetooth device
- Use AirPods with your Mac
- Optimize your Mac battery life
- Optimize storage space
- Burn CDs and DVDs
- Control accessories in your home
- Use Windows on your Mac
- Resources for your Mac
- Resources for your Apple devices
- Copyright
If you changed your display resolution and now there’s no picture on the screen of your Mac, you may have selected an unsupported screen resolution, causing the screen to go black temporarily. The display may reset its resolution automatically, or you may need to take some simple steps to correct it.
Reset the resolution automatically
Wait 15 seconds to see if your Mac resets the display resolution on its own.
If the display resolution doesn’t reset on its own, press Esc (Escape) to revert your display to the previously selected resolution.
Reset the resolution in safe mode
If you can’t reset your display’s resolution automatically, you can restart your Mac in safe mode and choose another resolution.
Start up your Mac in safe mode.
Startup may take a bit longer than usual, but your display should begin working correctly.
After your Mac starts up, choose Apple menu
in the sidebar. (You may need to scroll down.)Click Default on the right to use the best resolution for your display.
Restart your Mac normally.
See alsoChange your Mac display’s resolution
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