那些遇到过的问题

为什么 iTunes 会随机开始和停止播放，我该如何停止？

Chr*_*s R 4 audio itunes launchd macos

从昨天早上开始，我的 iTunes 副本一直在随机启动和停止。如果 iTunes 未运行，则它会打开，有时会开始播放，有时会闲置。最终，在一段随机间隔后，它会开始播放一首歌，然后停止，等等......不用说，它让我发疯。

（Mac OSX，10.6.3，在新的（< 1 岁）24" iMac 上）

我对我的系统进行了五项更改，这些更改可能与此相关，也可能不相关：

  1. 我的办公室电话被 Linksys IP 电话取代，这需要改变我的网络；以前我的 Mac 是直接连接到办公室网络端口的，现在它是通过电话连接的。

  2. 我的网络连接现在使用自动链接检测代替强制 100Mbit

  3. 我取消了蓝牙耳机的配对。

  4. 我移除了与另一个耳机关联的 USB 音频设备。

  5. 我升级到 Safari 5。我不将它用作主要浏览器，但它通常可以运行我正在开发的 Web 应用程序。

所有这些事情都发生在彼此非常接近的地方，因此其中一个或多个可能是罪魁祸首。

另一件可能相关或不相关的事情；出于某种原因，我的内置麦克风不再接收音频。看起来这可能与 iTunes 问题有关，因为它发生在大约同一时间。

就我为解决这个问题而尝试的事情而言，我有点不知所措。我按照http://developer.apple.com/mac/library/technotes/tn2004/tn2124.html#SECLAUNCHDLOGGING上的说明启用详细的 launchd 日志记录，以查看是否可以找到要求 iTunes 打开的进程（当它尚未打开）但我无法对输出进行正面或反面。老实说，我什至不确定我是否找对了地方。它实际上就像是在使用 AppleScript 激活应用程序一样，但据我所知，我没有正在运行的进程正在执行此操作。

我正在运行一些与 iTunes 集成的应用程序：Adium、iChat with Chax、Quicksilver。这些最近都没有改变，所以我认为它们导致这种情况的风险很低，但这并非不可能。此外，我没有故意使用这些功能中的任何一个。

这是 launchd 刚刚启动时的调试日志记录片段：

10-06-09 9:14:29 AM com.apple.launchd[1]    Dispatching kevent...
10-06-09 9:14:29 AM com.apple.launchd[1]    KEVENT[0]: udata = 0x10002b230 data = 0x30 ident = 5 filter = EVFILT_READ flags = EV_ADD|EV_RECEIPT fflags = 0x0
10-06-09 9:14:29 AM com.apple.launchd[1]    Dispatching kevent...
10-06-09 9:14:29 AM com.apple.launchd[1]    KEVENT[0]: udata = 0x100802000 data = 0x0 ident = 26 filter = EVFILT_PROC flags = EV_ADD|EV_RECEIPT|EV_CLEAR fflags = NOTE_FORK
10-06-09 9:14:29 AM com.apple.launchd[1]    (com.apple.coreservicesd[26]) Dispatching kevent callback.
10-06-09 9:14:29 AM com.apple.launchd[1]    (com.apple.coreservicesd[26]) EVFILT_PROC event for job:
10-06-09 9:14:29 AM com.apple.launchd[1]    KEVENT[0]: udata = 0x1004076f0 data = 0x0 ident = 26 filter = EVFILT_PROC flags = EV_ADD|EV_RECEIPT|EV_CLEAR fflags = NOTE_FORK
10-06-09 9:14:29 AM com.apple.launchd[1]    (com.apple.coreservicesd[26]) fork()ed
10-06-09 9:14:29 AM com.apple.launchd[1]    (0x100401720.anonymous.lssave) Conceived
10-06-09 9:14:29 AM com.apple.launchd[1]    (0x100401720.anonymous.lssave[22197]) Created PID 22197 anonymously by PPID 26
10-06-09 9:14:29 AM com.apple.launchd[1]    (0x100401720.anonymous.lssave[22197]) Looking up per user launchd for UID: 0
10-06-09 9:14:29 AM com.apple.launchd[1]    (0x100401720.anonymous.lssave[22197]) Per user launchd job found for UID: 505
10-06-09 9:14:29 AM com.apple.launchd[1]    System: Looking up service com.apple.system.notification_center
10-06-09 9:14:29 AM com.apple.launchd[1]    (com.apple.launchd.peruser.505[143]) Mach service lookup: com.apple.system.notification_center
10-06-09 9:14:29 AM com.apple.launchd[1]    (0x100401720.anonymous.lssave[22197]) Looking up per user launchd for UID: 0
10-06-09 9:14:29 AM com.apple.launchd[1]    (0x100401720.anonymous.lssave[22197]) Per user launchd job found for UID: 505
10-06-09 9:14:29 AM com.apple.launchd[1]    System: Looking up service com.apple.system.DirectoryService.libinfo_v1
10-06-09 9:14:29 AM com.apple.launchd[1]    (com.apple.launchd.peruser.505[143]) Mach service lookup: com.apple.system.DirectoryService.libinfo_v1
10-06-09 9:14:29 AM com.apple.launchd[1]    (0x100401720.anonymous.lssave[22197]) Looking up per user launchd for UID: 0
10-06-09 9:14:29 AM com.apple.launchd[1]    (0x100401720.anonymous.lssave[22197]) Per user launchd job found for UID: 505
10-06-09 9:14:29 AM com.apple.launchd[1]    System: Looking up service com.apple.system.DirectoryService.membership_v1
10-06-09 9:14:29 AM com.apple.launchd[1]    (com.apple.launchd.peruser.505[143]) Mach service lookup: com.apple.system.DirectoryService.membership_v1
10-06-09 9:14:29 AM com.apple.launchd[1]    (0x100401720.anonymous.lssave[22197]) Looking up per user launchd for UID: 0
10-06-09 9:14:29 AM com.apple.launchd[1]    (0x100401720.anonymous.lssave[22197]) Per user launchd job found for UID: 505
10-06-09 9:14:29 AM com.apple.launchd[1]    System: Looking up service com.apple.CoreServices.coreservicesd
10-06-09 9:14:29 AM com.apple.launchd[1]    (com.apple.launchd.peruser.505[143]) Mach service lookup: com.apple.CoreServices.coreservicesd
10-06-09 9:14:29 AM com.apple.launchd[1]    Dispatching kevent...
10-06-09 9:14:29 AM com.apple.launchd[1]    KEVENT[0]: udata = 0x100802000 data = 0x0 ident = 22197 filter = EVFILT_PROC flags = EV_ADD|EV_RECEIPT|EV_CLEAR fflags = NOTE_EXIT
10-06-09 9:14:29 AM com.apple.launchd[1]    (0x100401720.anonymous.lssave[22197]) Dispatching kevent callback.
10-06-09 9:14:29 AM com.apple.launchd[1]    (0x100401720.anonymous.lssave[22197]) EVFILT_PROC event for job:
10-06-09 9:14:29 AM com.apple.launchd[1]    KEVENT[0]: udata = 0x100401720 data = 0x0 ident = 22197 filter = EVFILT_PROC flags = EV_ADD|EV_RECEIPT|EV_CLEAR fflags = NOTE_EXIT
10-06-09 9:14:29 AM com.apple.launchd[1]    (0x100401720.anonymous.lssave[22197]) Reaping
10-06-09 9:14:29 AM com.apple.launchd[1]    (0x100401720.anonymous.lssave) Total rusage: utime 0.000000 stime 0.000000 maxrss 0 ixrss 0 idrss 0 isrss 0 minflt 0 majflt 0 nswap 0 inblock 0 oublock 0 msgsnd 0 msgrcv 0 nsignals 0 nvcsw 0 nivcsw 0
10-06-09 9:14:29 AM com.apple.launchd[1]    (0x100401720.anonymous.lssave) Removed
10-06-09 9:14:30 AM com.apple.launchd[1]    Dispatching kevent...
10-06-09 9:14:30 AM com.apple.launchd[1]    KEVENT[0]: udata = 0x100802000 data = 0x0 ident = 22197 filter = EVFILT_PROC flags = EV_ADD|EV_RECEIPT|EV_CLEAR|EV_EOF|EV_ONESHOT fflags = NOTE_REAP
10-06-09 9:14:32 AM com.apple.launchd[1]    Dispatching kevent...
10-06-09 9:14:32 AM com.apple.launchd[1]    KEVENT[0]: udata = 0x10002b230 data = 0x30 ident = 5 filter = EVFILT_READ flags = EV_ADD|EV_RECEIPT fflags = 0x0
10-06-09 9:14:33 AM com.apple.launchd[1]    Dispatching kevent...
10-06-09 9:14:33 AM com.apple.launchd[1]    KEVENT[0]: udata = 0x100802000 data = 0x0 ident = 143 filter = EVFILT_PROC flags = EV_ADD|EV_RECEIPT|EV_CLEAR fflags = NOTE_FORK
10-06-09 9:14:33 AM com.apple.launchd[1]    (com.apple.launchd.peruser.505[143]) Dispatching kevent callback.
10-06-09 9:14:33 AM com.apple.launchd[1]    (com.apple.launchd.peruser.505[143]) EVFILT_PROC event for job:
10-06-09 9:14:33 AM com.apple.launchd[1]    KEVENT[0]: udata = 0x10041e9a0 data = 0x0 ident = 143 filter = EVFILT_PROC flags = EV_ADD|EV_RECEIPT|EV_CLEAR fflags = NOTE_FORK
10-06-09 9:14:33 AM com.apple.launchd[1]    (com.apple.launchd.peruser.505[143]) fork()ed
10-06-09 9:14:33 AM com.apple.launchd[1]    System: Looking up service com.apple.distributed_notifications.2
10-06-09 9:14:33 AM com.apple.launchd[1]    (com.apple.launchd.peruser.505[143]) Mach service lookup: com.apple.distributed_notifications.2
10-06-09 9:14:33 AM com.apple.launchd[1]    System: Looking up service com.apple.system.notification_center
10-06-09 9:14:33 AM com.apple.launchd[1]    (com.apple.launchd.peruser.505[143]) Mach service lookup: com.apple.system.notification_center
10-06-09 9:14:33 AM com.apple.launchd[1]    System: Looking up service com.apple.system.DirectoryService.libinfo_v1
10-06-09 9:14:33 AM com.apple.launchd[1]    (com.apple.launchd.peruser.505[143]) Mach service lookup: com.apple.system.DirectoryService.libinfo_v1
10-06-09 9:14:33 AM com.apple.launchd[1]    System: Looking up service com.apple.system.DirectoryService.membership_v1
10-06-09 9:14:33 AM com.apple.launchd[1]    (com.apple.launchd.peruser.505[143]) Mach service lookup: com.apple.system.DirectoryService.membership_v1
10-06-09 9:14:33 AM com.apple.launchd[1]    System: Looking up service com.apple.CoreServices.coreservicesd
10-06-09 9:14:33 AM com.apple.launchd[1]    (com.apple.launchd.peruser.505[143]) Mach service lookup: com.apple.CoreServices.coreservicesd
10-06-09 9:14:33 AM com.apple.launchd[1]    System: Looking up service com.apple.SystemConfiguration.configd
10-06-09 9:14:33 AM com.apple.launchd[1]    (com.apple.launchd.peruser.505[143]) Mach service lookup: com.apple.SystemConfiguration.configd
10-06-09 9:14:33 AM com.apple.launchd[1]    System: Looking up service com.apple.audio.coreaudiod
10-06-09 9:14:33 AM com.apple.launchd[1]    (com.apple.launchd.peruser.505[143]) Mach service lookup: com.apple.audio.coreaudiod
10-06-09 9:14:34 AM com.apple.launchd[1]    System: Looking up service com.apple.system.logger
10-06-09 9:14:34 AM com.apple.launchd[1]    (com.apple.launchd.peruser.505[143]) Mach service lookup: com.apple.system.logger
10-06-09 9:14:35 AM com.apple.launchd[1]    Dispatching kevent...
10-06-09 9:14:35 AM com.apple.launchd[1]    KEVENT[0]: udata = 0x10002b230 data = 0x30 ident = 5 filter = EVFILT_READ flags = EV_ADD|EV_RECEIPT fflags = 0x0
10-06-09 9:14:35 AM com.apple.launchd[1]    System: Looking up service com.apple.DiskArbitration.diskarbitrationd
10-06-09 9:14:35 AM com.apple.launchd[1]    (com.apple.launchd.peruser.505[143]) Mach service lookup: com.apple.DiskArbitration.diskarbitrationd
10-06-09 9:14:35 AM com.apple.launchd[1]    System: Looking up service com.apple.system.logger
10-06-09 9:14:35 AM com.apple.launchd[1]    (com.apple.launchd.peruser.505[143]) Mach service lookup: com.apple.system.logger
10-06-09 9:14:36 AM com.apple.launchd[1]    System: Looking up service com.apple.FSEvents
10-06-09 9:14:36 AM com.apple.launchd[1]    (com.apple.launchd.peruser.505[143]) Mach service lookup: com.apple.FSEvents
10-06-09 9:14:36 AM com.apple.launchd[1]    System: Looking up service com.apple.SystemConfiguration.configd
10-06-09 9:14:36 AM com.apple.launchd[1]    (com.apple.launchd.peruser.505[143]) Mach service lookup: com.apple.SystemConfiguration.configd
10-06-09 9:14:38 AM com.apple.launchd[1]    Dispatching kevent...
10-06-09 9:14:38 AM com.apple.launchd[1]    KEVENT[0]: udata = 0x10002b230 data = 0x30 ident = 5 filter = EVFILT_READ flags = EV_ADD|EV_RECEIPT fflags = 0x0
10-06-09 9:14:39 AM com.apple.launchd[1]    Dispatching kevent...
10-06-09 9:14:39 AM com.apple.launchd[1]    KEVENT[0]: udata = 0x100802000 data = 0x0 ident = 26 filter = EVFILT_PROC flags = EV_ADD|EV_RECEIPT|EV_CLEAR fflags = NOTE_FORK
10-06-09 9:14:39 AM com.apple.launchd[1]    (com.apple.coreservicesd[26]) Dispatching kevent callback.
10-06-09 9:14:39 AM com.apple.launchd[1]    (com.apple.coreservicesd[26]) EVFILT_PROC event for job:
10-06-09 9:14:39 AM com.apple.launchd[1]    KEVENT[0]: udata = 0x1004076f0 data = 0x0 ident = 26 filter = EVFILT_PROC flags = EV_ADD|EV_RECEIPT|EV_CLEAR fflags = NOTE_FORK
10-06-09 9:14:39 AM com.apple.launchd[1]    (com.apple.coreservicesd[26]) fork()ed
10-06-09 9:14:39 AM com.apple.launchd[1]    (0x100401720.anonymous.lssave) Conceived
10-06-09 9:14:39 AM com.apple.launchd[1]    (0x100401720.anonymous.lssave[22211]) Created PID 22211 anonymously by PPID 26
10-06-09 9:14:39 AM com.apple.launchd[1]    (0x100401720.anonymous.lssave[22211]) Looking up per user launchd for UID: 0
10-06-09 9:14:39 AM com.apple.launchd[1]    (0x100401720.anonymous.lssave[22211]) Per user launchd job found for UID: 505
10-06-09 9:14:39 AM com.apple.launchd[1]    System: Looking up service com.apple.system.notification_center
10-06-09 9:14:39 AM com.apple.launchd[1]    (com.apple.launchd.peruser.505[143]) Mach service lookup: com.apple.system.notification_center
10-06-09 9:14:39 AM com.apple.launchd[1]    (0x100401720.anonymous.lssave[22211]) Looking up per user launchd for UID: 0
10-06-09 9:14:39 AM com.apple.launchd[1]    (0x100401720.anonymous.lssave[22211]) Per user launchd job found for UID: 505
10-06-09 9:14:39 AM com.apple.launchd[1]    System: Looking up service com.apple.system.DirectoryService.libinfo_v1
Run Code Online (Sandbox Code Playgroud)

Chr*_*s R 7

我想我可能已经发现了问题：

当我断开网络连接时，我似乎松开了连接外部扬声器的耳机或麦克风电缆。这会导致 OSX 检测到音频设备的断开连接和重新连接，并且（出于某种原因）导致 iTunes 开始和停止播放——无论 iTunes 是否首先运行。

因此，总而言之，如果发生这种情况，请检查您的麦克风和扬声器连接。

  • 我最近开始遇到这个问题。至少我现在不觉得疯了，因为我知道这发生在别人身上。 (3认同)

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