默认情况下，macOS 在闲置一段时间后会自动变暗并最终关闭显示屏。此功能有助于节省电池寿命(save battery life)并延长 Mac 的使用寿命。但是，根据您的偏好和工作流程，您可能需要增加或减少默认屏幕超时持续时间。
无论您是需要显示屏在演示过程中保持更长时间，还是希望通过更快地关闭显示屏来
节省一整天的电量，更改 macOS 中的屏幕超时都是一个简单且可自定义的过程。(conserve power throughout the day)
在本教程中，我们将向您展示如何更改Mac上的屏幕超时，包括其他有用的内容，例如修改屏幕保护程序和密码首选项。
注意：在 macOS Ventura中，Apple引入了系统设置(System Settings)应用程序，这是对旧版系统(System)偏好设置的全新尝试，更符合iPhone 和 iPad 上的iOS设置应用程序。(Settings)如果您的Mac使用较旧版本的 macOS，例如 macOS Monterey、Big Sur或Catalina，请按照另一组说明更改屏幕超时并管理Mac显示的其他方面。
更改 Mac 上的屏幕超时
您可以通过Mac上的(Mac)“锁定屏幕”(Lock Screen)或Battery/Energy Saver偏好设置面板更改Mac的默认屏幕超时。您还可以在MacBook(MacBook)型号上为电池电源和电源适配器
指定不同的超时。
macOS Ventura 及更高版本
- 选择菜单栏左上角的Apple图标，然后选择(Apple)“系统设置”(System Settings)。
- (Scroll)向下滚动“系统设置”(System Settings)侧栏并选择“锁定屏幕”(Lock Screen)。
- 如果您使用MacBook Pro或MacBook Air ，请打开“不活动时使用电池(MacBook Air)关闭(Turn)显示器”和“不活动时使用电源适配器关闭(Turn)显示器”旁边的菜单，然后选择替代超时 - 5 分钟、10 分钟、20 分钟等。
例如，您可以在使用电池供电时设置较短的持续时间，而在使用电源适配器时设置较长的持续时间。
在 iMac 或Mac mini上，使用“非活动时(Mac mini)关闭(Turn)显示屏”选项旁边的菜单来调整屏幕超时。
macOS 蒙特利及更早版本
- 打开Apple菜单并选择“系统偏好设置”(System Preferences)。
- 选择电池/节能器。
- 如果您使用的是MacBook，请使用(MacBook)电池(Battery)和电源适配器选项卡下的(Power Adapter)关闭(Turn)显示器下的滑块来修改默认屏幕超时。
如果您使用 iMac 或Mac mini，请使用“电源”选项卡下的“之后(Power)关闭(Turn)显示屏”滑块来更改屏幕超时持续时间。
阻止 Mac 进入睡眠状态
除了显示屏之外，macOS 还会自动将其他硬件组件置于睡眠模式，以节省额外电量并减少内部组件的磨损。您可以通过禁用相关的睡眠设置来停止这种情况，但前提是Mac需要使用电源适配器。
macOS Ventura 及更高版本
- 选择屏幕左上角的Apple徽标，然后选择(Apple)“系统设置”(System Settings)。
- 选择侧边栏上的显示。
- 选择高级按钮。
- 关闭显示器关闭时防止电源适配器自动休眠旁边的开关。(Prevent)在 iMac 或Mac mini上，关闭“防止(Prevent)显示屏关闭时自动休眠”旁边的开关。
- 选择完成以保存您的更改。
macOS 蒙特利及更早版本
- 打开Apple菜单并选择“系统偏好设置”(System Preferences)。
- 选择电池/节能器。
- 选择Power Adapter/Power选项卡。
- 取消选中“防止Mac(Mac)在显示屏关闭时自动休眠”
旁边的框。
- (Select OK)在确认弹出窗口中
选择“确定” 。
更改屏幕保护程序超时
您可以让Mac(Mac)在屏幕超时之前显示屏幕保护程序，从而为您的 Mac 增添一抹个性。以下是如何设置屏幕保护程序并更改其启动前的时间。
macOS Ventura 及更新版本
- 打开“系统设置”(System Settings)应用程序，然后选择侧边栏上的
“屏幕保护程序” 。(Screen Saver)
- 在列表中选择一个屏幕保护程序（浮动、上翻(Flip-up)、反射(Reflections)等），然后选择“选项”对其进行自定义。例如，您可以决定屏幕保护程序显示的颜色和图片。
- 切换到侧边栏上的锁定屏幕。(Lock Screen)然后，打开“非活动状态下启动屏幕保护程序”(Start Screen Saver)旁边的下拉菜单，然后选择持续时间。确保(Make)它低于Mac的屏幕超时时间。
macOS 蒙特利及更早版本
- 打开系统(System) 偏好设置(Preferences)并进入桌面(Desktop)和屏幕保护(Screen Saver)程序类别。
- 切换到屏幕保护程序选项卡。
- 选择(Pick)一个屏幕保护程序，打开标记为“之后显示(Show)屏幕保护程序”的设置，然后使用菜单选择持续时间。选择(Pick)一个低于指定屏幕超时的选项。
提示：您可以将 Mac 的屏幕保护程序绑定到屏幕上的热点角，以便在需要时随时激活它。了解热点角在 macOS 上的工作原理(how hot corners work on macOS)。
更改密码请求持续时间
默认情况下，当您在屏幕保护程序启动或屏幕超时后想要重新获得访问权限时，Mac会要求您输入密码。(Mac)如果您愿意，您可以将其延迟一段指定的时间。
macOS Ventura 及更高版本
- 打开系统设置(System Settings)并选择侧边栏上的
锁定屏幕。(Lock Screen)
- 打开需要(Require)密码、更安全的屏幕保护程序开始或显示关闭旁边的
菜单，然后选择持续时间。
- 输入您的Mac用户帐户密码并选择修改设置(Modify Settings)。
macOS 蒙特利及更早版本
- 转到系统偏好设置(System Preferences)并选择安全(Security)和隐私(Privacy)。
- 选中“需要(Require)密码”旁边的框，然后使用菜单选择持续时间。
- 输入您的Mac用户帐户密码并选择“确定”。
调整 Mac 的屏幕超时(Screen Timeout)以满足您的需求
自定义 Mac 的屏幕超时设置可以节省电池寿命、保护您的隐私并提高工作效率。通过上述简单步骤，您可以轻松调整屏幕超时时间以满足您的需求和偏好。请记住(Remember)使用上面的其他提示来最大限度地提高 Mac 显示屏在空闲时的表现并个性化您的 macOS 体验(personalize your macOS experience)。
How to Change the Screen Timeout in macOS
By default, macOЅ automatically dims and eventually turns off the display after а certain period of inactіvity. This feature helps save battery life and prolongs your Mac’s lifespan. However, depending on your preferences and workflow, you may want to increase or decrease the default screen timeout duration.
Whether you need the display to stay on for longer during a presentation or want to conserve power throughout the day by having it turn off faster, changing the screen timeout in macOS is a simple and customizable process.
In this tutorial, we’ll show you how to change the screen timeout on a Mac, including other useful stuff like modifying your screensaver and passcode preferences.
Note: With macOS Ventura, Apple introduced the System Settings app, a fresh take on the older System Preferences more in line with the iOS Settings app on the iPhone and iPad. If your Mac uses an older version of macOS, such as macOS Monterey, Big Sur, or Catalina, follow the alternative set of instructions to change the screen timeout and manage other aspects of your Mac’s display.
Change Screen Timeout on Mac
You can change the default screen timeout for your Mac through the Lock Screen or Battery/Energy Saver preferences panel on your Mac. You can also specify different timeouts on a MacBook model for battery power and the power adapter.
macOS Ventura and Later
- Select the Apple icon on the top left of the menu bar and select System Settings.
- Scroll down the System Settings sidebar and choose Lock Screen.
- If you use a MacBook Pro or a MacBook Air, open the menus next to Turn display off on battery when inactive and Turn display off on power adapter when inactive and pick an alternative timeout—5 minutes, 10 minutes, 20 minutes, etc.
For example, you could set a shorter duration while on battery power and a longer period while on the power adapter.
On an iMac or Mac mini, use the menu next to Turn display off when inactive option to adjust the screen timeout.
macOS Monterey and Older
- Open the Apple menu and select System Preferences.
- Select Battery/Energy Saver.
- Use the slider under Turn display off after under the Battery and Power Adapter tabs to modify the default screen timeout if you use a MacBook.
If you use an iMac or Mac mini, use the Turn display off after slider under the Power tab to change the screen timeout duration.
Stop Your Mac From Sleeping
In addition to the display, macOS automatically puts other hardware components to sleep mode to conserve additional power and reduce the wear on its internal components. You can stop that by disabling the relevant sleep setting, but only when the Mac runs off a power adapter.
macOS Ventura and Later
- Select the Apple logo on the top left corner of the screen and choose System Settings.
- Select Displays on the sidebar.
- Select the Advanced button.
- Turn off the switch next to Prevent automatic sleeping on power adapter when the display is off. On an iMac or Mac mini, turn off the switch next to Prevent automatic sleeping when the display is off.
- Select Done to save your changes.
macOS Monterey and Older
- Open the Apple menu and select System Preferences.
- Select Battery/Energy Saver.
- Select the Power Adapter/Power tab.
- Uncheck the box next to Prevent your Mac from automatically sleeping when the display is off.
- Select OK on the confirmation pop-up.
Change Screen Saver Timeout
You can add a touch of personality to your Mac by having it display a screensaver before the screen times out. Here’s how to set up a screen saver and change the amount of time before it kicks in.
macOS Ventura and Newer
- Open the System Settings app and choose Screen Saver on the sidebar.
- Pick a screensaver on the list—Floating, Flip-up, Reflections, etc.—and select Options to customize it. For example, you can decide what colors and pictures show up with the screensaver.
- Switch to Lock Screen on the sidebar. Then, open the drop-down menu next to Start Screen Saver when inactive, and choose a duration. Make sure it’s lower than the screen timeout for your Mac.
macOS Monterey and Older
- Open System Preferences and enter the Desktop & Screen Saver category.
- Switch to the Screen Saver tab.
- Pick a screen saver, turn on the setting labeled Show screen saver after, and use the menu to pick a duration. Pick an option that’s lower than the specified screen timeout.
Tip: You can bind your Mac’s screensaver to a hot corner on the screen to activate it whenever you want. Learn how hot corners work on macOS.
Change Password Request Duration
By default, your Mac asks you for your password when you want to regain access after your screensaver kicks in or the screen times out. You can delay that for a defined amount of time if you wish.
macOS Ventura and Later
- Open System Settings and select Lock Screen on the sidebar.
- Open the menu next to Require password safer screen saver begins or display is turned off and pick a time duration.
- Enter your Mac user account password and select Modify Settings.
macOS Monterey and Older
- Go to System Preferences and select Security & Privacy.
- Check the box next to Require password and use the menu to pick a time duration.
- Enter your Mac user account password and select OK.
Adjust Your Mac’s Screen Timeout to Suit Your Needs
Customizing your Mac’s screen timeout settings can conserve battery life, protect your privacy, and boost productivity. With the simple steps outlined above, you can easily adjust the screen timeout time to suit your needs and preferences. Remember to use the other pointers above to maximize how your Mac’s display behaves while idle and personalize your macOS experience.
