发行版：Debian Bullseye 音频接口：M-Audio M-Track 2X2M、Focusrite Scarlett 2i4
我可以用 vlc、mpv、quodlibet、firefox 播放任何声音。
我启动 jack，仍然可以通过告诉每个应用程序使用来播放声音Pulseaudio 插孔接收器。
当停止插孔时，每个软件都会从插孔接收器返回到音频接口。除了 vlc 有音频播放问题（图像看起来不错）之外，它们都播放得很好（在停止插孔时出现短暂的转换故障）。
两个音频接口之间的症状略有不同。
使用 M-Audio M-Track 2X2M 时，声音每隔几秒就会停止，并且控制台中充满了这些错误：
[0000559265fdea20] pulse audio output warning: starting late (-17920 us)
[0000559265fdea20] main audio output warning: playback way too early (-512867): playing silence
[0000559265fdea20] main audio output warning: playback too late (60253): up-sampling
[0000559265fdea20] main audio output warning: timing screwed (drift: 121333 us): stopping resampling
[0000559265fdea20] main audio output warning: playback too late (121292): up-sampling
[0000559265fdea20] main audio output warning: playback way too late (182033): flushing buffers
[0000559265fdea20] main audio output warning: playback way too early (-508497): playing silence
[0000559265fdea20] main audio output warning: playback too late (75859): up-sampling
[0000559265fdea20] main audio output warning: timing screwed (drift: 154957 us): stopping resampling
[0000559265fdea20] main audio output warning: playback too late (154937): up-sampling
[0000559265fdea20] main audio output warning: playback way too late (194625): flushing buffers
[0000559265fdea20] pulse audio output warning: starting late (-1470 us)
[0000559265fdea20] main audio output warning: playback way too early (-508119): playing silence
[0000559265fdea20] main audio output warning: playback too late (60012): up-sampling
[0000559265fdea20] main audio output warning: timing screwed (drift: 120048 us): stopping resampling
[0000559265fdea20] main audio output warning: playback too late (120331): up-sampling
[0000559265fdea20] main audio output warning: playback way too late (180143): flushing buffers
[0000559265fdea20] pulse audio output warning: starting late (-3654 us)
[0000559265fdea20] main audio output warning: playback way too early (-548874): playing silence
[0000559265fdea20] main audio output warning: playback too late (77824): up-sampling
[0000559265fdea20] main audio output warning: timing screwed (drift: 159831 us): stopping resampling
[0000559265fdea20] main audio output warning: playback too late (159790): up-sampling
[0000559265fdea20] main audio output warning: playback way too late (180711): flushing buffers
[0000559265fdea20] pulse audio output warning: starting late (-19826 us)
[0000559265fdea20] main audio output warning: playback way too early (-513173): playing silence
[0000559265fdea20] main audio output warning: playback too late (60207): up-sampling
使用 Scarlett 时，我没有遇到这些错误，声音也不会停止，但听起来很脏，就像被削波一样。
vlc 似乎是唯一受影响的播放器。
重新启动 vlc 没有帮助。
将输出更改为内部声卡然后返回也没有帮助。选择内部声卡时问题停止，然后选择音频接口时再次出现。
重新启动pulseaudio（然后重新启动vlc）确实解决了问题（直到下次）。
systemctl --user restart pulseaudio
我一无所知。我在系统日志中没有看到任何相关内容。我能找到的唯一显示相关内容的日志是上面引用的 vlc 日志，但恐怕它只显示结果，而不显示根本原因。
我刚刚在停止 jack 时注意到 QjackCtl 中的那些错误。它们仅在使用脉冲音频插孔接收器时出现。
Sat Dec 3 18:13:29 2022: Client 'qjackctl' with PID 5618 is out
Sat Dec 3 18:13:29 2022: Stopping jack server...
Sat Dec 3 18:13:29 2022: Client 'system' with PID 0 is out
Sat Dec 3 18:13:29 2022: Client 'PulseAudio JACK Sink' with PID 5393 is out
Sat Dec 3 18:13:29 2022: Client 'PulseAudio JACK Source' with PID 5393 is out
Sat Dec 3 18:13:29 2022: ERROR: Cannot write socket fd = 47 err = Broken pipe
Sat Dec 3 18:13:29 2022: ERROR: CheckRes error
Sat Dec 3 18:13:29 2022: ERROR: Could not write notification
Sat Dec 3 18:13:29 2022: ERROR: ClientNotify fails name = system notification = 1 val1 = 0 val2 = 0
Sat Dec 3 18:13:29 2022: ERROR: Cannot write socket fd = 51 err = Broken pipe
Sat Dec 3 18:13:29 2022: ERROR: CheckRes error
Sat Dec 3 18:13:29 2022: ERROR: Could not write notification
Sat Dec 3 18:13:29 2022: ERROR: ClientNotify fails name = system notification = 1 val1 = 0 val2 = 0
Sat Dec 3 18:13:29 2022: Released audio card Audio1
Sat Dec 3 18:13:29 2022: ERROR: Cannot write socket fd = 47 err = Broken pipe
Sat Dec 3 18:13:29 2022: ERROR: CheckRes error
Sat Dec 3 18:13:29 2022: ERROR: Could not write notification
Sat Dec 3 18:13:29 2022: ERROR: ClientNotify fails name = freewheel notification = 1 val1 = 0 val2 = 0
Sat Dec 3 18:13:29 2022: ERROR: Cannot write socket fd = 51 err = Broken pipe
Sat Dec 3 18:13:29 2022: ERROR: CheckRes error
Sat Dec 3 18:13:29 2022: ERROR: Could not write notification
Sat Dec 3 18:13:29 2022: ERROR: ClientNotify fails name = freewheel notification = 1 val1 = 0 val2 = 0
是否有可能当停止杰克时，pulseaudio杰克接收器以一种不太好的方式中断，这搞砸了pulseaudio？