mac os x 程序员
If your Mac’s screen saver freezes and doesn’t want to go away, don’t worry. Many other users have come across this problem, but there are a few ways to fix it.
如果您Mac的屏幕保护程序死机并且不想消失，请不要担心。 许多其他用户都遇到过此问题，但是有几种方法可以解决此问题。
究竟会发生什么？ (What Happens Exactly?)
If your Mac’s screensaver freezes, moving your mouse cursor around or hitting keys on the keyboard won’t make it go away. The mouse cursor will appear on the screen and you can freely move it around, but the screensaver will still show.
如果Mac的屏幕保护程序死机了，那么移动鼠标光标或敲击键盘上的键都不会消失。 鼠标光标将出现在屏幕上，您可以自由移动它，但是屏幕保护程序仍然会显示。
The keyboard and mouse will still work, meaning that if you click your mouse or type on your keyboard while your screensaver is frozen, your Mac will still register it. Furthermore, your Mac may also never go to into sleep mode because of this and will remain on until you can fix the problem and get back to the desktop.
键盘和鼠标仍将起作用，这意味着如果在屏保冻结时单击鼠标或在键盘上键入，Mac仍将对其进行注册。 此外，因此，您的Mac可能永远也不会进入睡眠模式，并且将一直保持打开状态，直到您解决问题并返回桌面为止。
We’re not exactly sure why it occurs, but it’s a known reoccurring issue. I’ve personally seen it happen on my MacBook every few months or so, but there are a couple of fixes that you can try out.
我们不确定为什么会发生，但这是一个已知的重复发生的问题。 我个人看到它每隔几个月左右就会在MacBook上发生一次，但是您可以尝试一些修复程序。
重置NVRAM (Reset the NVRAM)
The only quick, permanent solution that I’ve seen fix this problem is resetting the NVRAM (non-volatile random-access memory). It stores various OS X data like speaker volume, mouse and trackpad settings, and screen resolution.
我见过的唯一解决此问题的快速，永久解决方案是重置NVRAM(非易失性随机存取存储器)。 它存储各种OS X数据，例如扬声器音量，鼠标和触控板设置以及屏幕分辨率。
Sometimes the NVRAM can become corrupted, which could cause an issue like this. Thankfully, you can easily reset it. Keep in mind, though, that this will reset things like speaker volume, mouse settings, date and time, and other small things like that.
有时NVRAM可能会损坏，这可能会导致诸如此类的问题。 幸运的是，您可以轻松地重置它。 但是请记住，这将重置扬声器音量，鼠标设置，日期和时间等其他内容。
To reset the NVRAM, start by completely shutting down your Mac. Next, press the power button to turn on your Mac, and immediately press Cmd+Opt+P+R on your keyboard. Keep holding those keys down until you here the startup chime for the second time. From there, let go and let your Mac boot up as normal.
要重置NVRAM，请先完全关闭Mac。 接下来，按电源按钮打开Mac，然后立即按键盘上的Cmd + Opt + P + R。 一直按住这些键，直到第二次出现启动提示音为止。 从那里放开，让Mac正常启动。
Of course, you won’t know if this has actually fixed the screensaver problem until it happens again. If it doesn’t happen again, then it’s likely that resetting the NVRAM helped.
当然，除非再次发生，否则您将不知道这是否真的解决了屏幕保护程序问题。 如果不再发生，则重置NVRAM可能会有所帮助。
手动将其置于睡眠状态并唤醒 (Put It to Sleep Manually and Wake It Back Up)
If you happened to be working on something important when the screensaver problem occurred (maybe you went to get a quick drink and came back to it), you don’t necessarily want to force-shutdown your Mac in the middle of important work, so there’s a temporary fix that will unfreeze your Mac’s screensaver.
如果您在发生屏幕保护程序问题时碰巧正在做一些重要的事情(也许您去喝了一杯再回来喝)，那么您不一定要在重要工作中强制关闭Mac，所以有一个临时修复程序可以解冻Mac的屏幕保护程序。
All you have to do is press down on the power button for about a second (a quick tap won’t do it). This will manually put your Mac to sleep. From there, you can press on the power button again to wake it up and you should be back at your desktop.
您所要做的就是按下电源按钮约一秒钟(快速点击不会执行此操作)。 这将手动使Mac进入睡眠状态。 从那里，您可以再次按电源按钮将其唤醒，您应该回到桌面上。
Again, this is a temporary fix and it’s likely that you’ll come across this issue again at some point in the future if you don’t take further steps, but it will at least prevent you from having to shut down your Mac and possibly lose any important work that you were in the middle of.
同样，这是一个临时修复程序，如果您不采取进一步措施，很可能在将来的某个时候再次遇到此问题，但这至少可以防止您不得不关闭Mac，甚至可能失去您正在从事的任何重要工作。
翻译自: https://www.howtogeek.com/267668/how-to-fix-a-stuck-screen-saver-in-os-x/
mac os x 程序员