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<span style="color: #333">Ubuntu 21.10</span> » <a class="trail" href="index.html.zh-CN" title="Ubuntu 桌面指南"><span class="media"><span class="media media-image"><img src="figures/ubuntu-logo.png" height="16" width="16" class="media media-inline" alt="帮助"></span></span> Ubuntu 桌面指南</a> » <a class="trail" href="prefs.html.zh-CN" title="用户 & 系统设置">设置</a> » <a class="trail" href="privacy.html.zh-CN" title="Privacy Settings">Privacy Settings</a> » </div></div>
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<div id="cwt-content" class="clearfix content-area"><div id="page">
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<div class="hgroup pagewide"><h1 class="title"><span class="title">自动锁定屏幕</span></h1></div>
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<div class="contents pagewide">
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<p class="p">When you leave your computer, you should
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<span class="link"><a href="shell-exit.html.zh-CN#lock-screen" title="锁定屏幕">lock the screen</a></span> to prevent
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other people from using your desktop and accessing your files. If you
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sometimes forget to lock your screen, you may wish to have your computer’s
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screen lock automatically after a set period of time. This will help to
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secure your computer when you aren’t using it.</p>
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<div class="note" title="备注">
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<svg width="24" height="24" version="1.1">
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<path class="yelp-svg-fill" d="m4 3h16c0.554 0 1 0.446 1 1v11h-6v6h-11c-0.554 0-1-0.446-1-1v-16c0-0.554 0.446-1 1-1z"></path>
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</svg><div class="inner"><div class="region"><div class="contents"><p class="p">When your screen is locked, your applications and system processes
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will continue to run, but you will need to enter your password to begin using
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them again.</p></div></div></div>
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<div class="steps"><div class="inner">
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<div class="title title-steps"><h2><span class="title">To set the length of time before your screen locks
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automatically:</span></h2></div>
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<div class="region"><ol class="steps">
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<li class="steps"><p class="p">Open the <span class="gui"><a href="shell-introduction.html.zh-CN#activities" title="Activities overview">Activities</a></span> overview and
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start typing <span class="gui">Screen Lock</span>.</p></li>
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<li class="steps"><p class="p">Click on <span class="gui">Screen Lock</span> to open the panel.</p></li>
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<li class="steps"><p class="p">Make sure <span class="gui">Automatic Screen Lock</span> is switched on, then select a
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length of time from the <span class="gui">Automatic Screen Lock Delay</span> drop-down list.</p></li>
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<path class="yelp-svg-fill" d="m9 20a0.5 0.5 0 0 0-0.5 0.5 0.5 0.5 0 0 0 0.5 0.5h6a0.5 0.5 0 0 0 0.5-0.5 0.5 0.5 0 0 0-0.5-0.5h-6zm0 2a0.5 0.5 0 0 0-0.5 0.5 0.5 0.5 0 0 0 0.5 0.5h6a0.5 0.5 0 0 0 0.5-0.5 0.5 0.5 0 0 0-0.5-0.5h-6z"></path>
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</svg><div class="inner"><div class="region"><div class="contents"><p class="p">Applications can present notifications to you that are still displayed
109
on your lock screen. This is convenient, for example, to see if you have
110
any email without unlocking your screen. If you’re concerned about other
111
people seeing these notifications, switch <span class="gui">Show Notifications on Lock Screen</span>
112
off. For further notification settings, refer to <span class="link"><a href="shell-notifications.html.zh-CN" title="Notifications and the notification list">Notifications and the notification list</a></span>.</p></div></div></div>
114
<p class="p">When your screen is locked, and you want to unlock it, press
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<span class="key"><kbd>Esc</kbd></span>, or swipe up from the bottom of the screen with your mouse.
116
Then enter your password, and press <span class="key"><kbd>Enter</kbd></span> or click
117
<span class="gui">Unlock</span>. Alternatively, just start typing your password and the
118
lock curtain will be automatically raised as you type.</p>
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<section class="links" role="navigation"><div class="inner">
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<div class="hgroup pagewide"></div>
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<div class="contents pagewide">
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<div class="title"><h2><span class="title">更多信息</span></h2></div>
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<div class="region"><ul><li class="links ">
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<a href="privacy.html.zh-CN" title="Privacy Settings">Privacy Settings</a><span class="desc"> — Lock your screen, remove temporary files, and control access to
127
devices like cameras and microphones.</span>
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<div class="links seealsolinks"><div class="inner">
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<div class="title"><h2><span class="title">亦见</span></h2></div>
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<div class="region"><ul>
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<a href="session-screenlocks.html.zh-CN" title="屏幕锁定得太快">屏幕锁定得太快</a><span class="desc"> — Change how long to wait before locking the screen in the
135
<span class="gui">Screen Lock</span> settings.</span>
137
<li class="links "><a href="shell-exit.html.zh-CN#lock-screen" title="锁定屏幕">锁定屏幕</a></li>
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To report errors in this documentation, <a href="https://bugs.launchpad.net/ubuntu/+source/ubuntu-docs">file a bug</a>.</p>
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