Linux 上的用户空闲时间在 30 秒后重置为 0
我正在尝试使用 X11 屏幕保护程序扩展客户端库检测自上次用户输入以来的时间。我定期调用 XScreenSaverQueryInfo 来获取空闲时间。我面临的问题是，每 20-30 秒后，此调用报告的空闲时间就会重置为 0。即使当时没有实际的用户输入，也会发生这种情况。我对此完全感到困惑。我唯一的线索是，如果我卸载 gnome-screensaver ，问题就会消失。我的问题是，gnome-screensaver 是否出于某种原因模拟用户输入？我知道这听起来不太可能，如果确实如此，那肯定是 gnome-screensaver 的错误，但我现在想不出其他任何东西。有谁知道我可以在哪里找到有关 gnome-screensaver 如何工作以及它如何影响 XScreenSaverQueryInfo 调用的更多信息，而无需实际查看代码。我已经浏览了 gnome-screensaver home 上的信息，但找不到任何内容与我的问题相关。
更新：我从 dbus-monitor 获得以下输出。我如何解释这一点：
method call sender=:1.97538 -> dest=org.gnome.ScreenSaver serial=3 path=/org/gnome/ScreenSaver; interface=org.gnome.ScreenSaver; member=SimulateUserActivity
我认为某个进程正在要求 gnome-screensaver 模拟用户活动。或者，gnome-screensaver 是否向 dbus 发送 SimulateUserActivity 信号？如果是第一个，我如何找出哪个进程要求 gnome-screensaver 执行此操作？
I am trying to detect time since last user input using the X11 Screen Saver extension client library. I make periodic calls to XScreenSaverQueryInfo to get the idle time. The problem I am facing is that after every 20-30 seconds the idle time, as reported by this call, resets to 0. This happens even though there has been no actual user input in that time. I am totally puzzled by this. The only lead I have is that the problem disappears if I uninstall gnome-screensaver. My question is, does the gnome-screensaver simulate user inputs for some reason? I know it sounds unlikely, and if it does, it will most definitely be a bug with gnome-screensaver, but I cannot think of anything else right now. Does anyone know where I can find more information on how gnome-screensaver works and how it influences the XScreenSaverQueryInfo call without actually having to go through the code. I have gone through the info at gnome-screensaver home but could not find anything relevant to my issue.
Update: I got the following output from dbus-monitor. How do I interpret this:
method call sender=:1.97538 -> dest=org.gnome.ScreenSaver serial=3 path=/org/gnome/ScreenSaver; interface=org.gnome.ScreenSaver; member=SimulateUserActivity
I think some process is asking gnome-screensaver to SimulateUserActivity. Or, is gnome-screensaver sending a SimulateUserActivity signal to dbus? If it is the first, how can I find out which process is asking gnome-screensaver to do that?
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程序（视频播放器在播放视频时执行此操作）可能会发送
gnome-screensaver-command --poke命令，该命令将发送SimulateUserActivity事件来重置空闲时间，将阻止屏幕保护程序激活。A program (video players does this while playing video) might be sending a
gnome-screensaver-command --pokecommand which will send aSimulateUserActivityevent to reset the idle time which will prevent screensaver becoming active.一旦您拥有 dbus 发送器（如 dbus-monitor 所示），您可以执行以下操作：
插入实际的发送器。这将为您提供发送消息的 pid。
然后假设 pid 是 2144，你会这样做：
作为查看程序是什么的一种方法。
Once you have the dbus sender (as shown on dbus-monitor there) you can do:
plugging in the actual sender. That gives you the pid that's sending the message.
Then say the pid is 2144, you'd do:
as one way to see what the program is.