耳机插孔没有声音输出 Ubuntu12.04

Question

我刚买了一台新的华硕 u47vc 电脑。我已经在 Windows 7 上安装了 ubuntu 12.04，没有任何问题。然而，有一个问题必须解决。我无法从音频插孔中发出声音。

笔记本电脑的扬声器工作正常。它可以很好地播放音乐和声音文件，并带有内部讲话。但是，当我插入耳机（或外部扬声器）时，内部扬声器会静音（应该如此），耳机中没有任何声音。

以下是一些可能有帮助的输出： alsa 信息脚本：http : //www.alsa-project.org/db/? f=82de5623cbdeeeae955cba02d7afe1a4b3fca965

希望这个问题可以解决！

先感谢您！！！

Answer 1

这偶尔发生在我身上，跑步

alsactl restore 

总是修复它（在 XPS 计算机上）

Answer 2

无法添加评论；所以这里有一个“答案”，它部分是一个问题（我可能会删除它）：

在我的安装中，我有时会遇到这个问题，为了解决它，我进入声音设置并选择“输出音量”，OFF然后ON声音就可以了。

编辑：

你有没有尝试过

sudo apt-get install pavucontrol

运行pavucontrol并检查设置。即输出设备耳机并确保不静音。

编辑：

您是否禁用了自动生成？如果不是，pulseuadio 可能仍在运行（但已重新启动）。要检查 PulseAudio 守护进程是否正在运行，请执行以下操作：

pulseaudio --check && echo RUNNIG || echo DOWN

如果它正在运行并且一切正常，您应该检查系统日志文件以查看是否有关于故障的提示。作为一个黑客，如果只需要pulseaudio -k重新启动守护程序，您可以添加到启动以重新启动守护程序。

如果它正在运行并且您想禁用它，则必须关闭自动生成。

请参阅禁用 PulseAudio

如果它没有运行，您可能会使用调试获得一些有用的信息。

如果您将这些设置临时添加到配置中，这也会很有用。

启动pulseaudio

pulseaudio --start --log-level=4 --log-target=file:pulse.log
# Level 4 is debug 

然后开始一些调整和：

tail -f pulse.log

拔下插孔。记下最后的日志条目；应该以类似的方式结束：

D  [alsa-sink] sink.c: Volume change to 52057 at 83909698687 was written 17 usec late

插入插孔；寻找任何可以解释为什么没有声音的东西。即我的输出（工作）是：

D  [pulseaudio] module-alsa-card.c: Jack 'Front Headphone Jack' is now plugged in
D  [pulseaudio] device-port.c: Setting port analog-output-speaker to status no
D  [pulseaudio] module-switch-on-port-available.c: finding port analog-output-speaker
D  [pulseaudio] device-port.c: Setting port analog-output-headphones to status yes
D  [pulseaudio] core-subscribe.c: Dropped redundant event due to change event.
D  [pulseaudio] module-switch-on-port-available.c: finding port analog-output-headphones
D  [alsa-sink] alsa-mixer.c: Activating path analog-output-headphones
D  [alsa-sink] alsa-mixer.c: Path analog-output-headphones (Headphones), direction=1, priority=90, probed=yes, supported=yes, has_mute=yes, has_volume=yes, has_dB=yes, min_volume=0, max_volume=31, min_dB=-93, max_dB=0
D  [alsa-sink] alsa-mixer.c: Element Master, direction=1, switch=1, volume=1, volume_limit=-1, enumeration=0, required=0, required_any=0, required_absent=0, mask=0x7ffffffffffff, n_channels=1, override_map=yes
D  [alsa-sink] alsa-mixer.c: Element Headphone, direction=1, switch=1, volume=0, volume_limit=-1, enumeration=0, required=0, required_any=4, required_absent=0, mask=0x0, n_channels=0, override_map=yes
D  [alsa-sink] alsa-mixer.c: Element Speaker, direction=1, switch=2, volume=2, volume_limit=-1, enumeration=0, required=0, required_any=0, required_absent=0, mask=0x7ffffffffffff, n_channels=1, override_map=no
D  [alsa-sink] alsa-mixer.c: Element PCM, direction=1, switch=1, volume=1, volume_limit=-1, enumeration=0, required=0, required_any=0, required_absent=0, mask=0x3600000000f66, n_channels=2, override_map=yes
D  [alsa-sink] alsa-mixer.c: Jack Front Headphone, alsa_name='Front Headphone Jack', detection possible
D  [alsa-sink] alsa-mixer.c: Jack Headphone, alsa_name='Headphone Jack', detection unavailable
I  [alsa-sink] alsa-sink.c: Successfully enabled deferred volume.
I  [alsa-sink] alsa-sink.c: Hardware volume ranges from -93.00 dB to 0.00 dB.
I  [alsa-sink] alsa-sink.c: Fixing base volume to 0.00 dB
I  [alsa-sink] alsa-sink.c: Using hardware volume control. Hardware dB scale supported.
I  [alsa-sink] alsa-sink.c: Using hardware mute control.
I  [pulseaudio] sink.c: Changed port of sink 0 "alsa_output.pci-0000_00_1b.0.analog-stereo" to analog-output-headphones
I  [pulseaudio] module-device-restore.c: Restoring volume for sink alsa_output.pci-0000_00_1b.0.analog-stereo.
D  [pulseaudio] core-subscribe.c: Dropped redundant event due to change event.
D  [alsa-sink] alsa-sink.c: Requested volume: 0: 100% 1: 100%
D  [alsa-sink] alsa-sink.c:            in dB: 0: 0.00 dB 1: 0.00 dB
D  [alsa-sink] alsa-sink.c: Got hardware volume: 0: 100% 1: 100%
D  [alsa-sink] alsa-sink.c:               in dB: 0: 0.00 dB 1: 0.00 dB
D  [alsa-sink] alsa-sink.c: Calculated software volume: 0: 100% 1: 100% (accurate-enough=yes)
D  [alsa-sink] alsa-sink.c:                      in dB: 0: 0.00 dB 1: 0.00 dB
D  [alsa-sink] sink.c: Volume going up to 65536 at 83942385195
I  [pulseaudio] module-devic2 events suppRestoring mute state for sink alsa_output.pci-0000_00_1b.0.analog-stereo.
D  [alsa-sink] sink.c: Next volume change in 17483 usec
D  [alsa-sink] alsa-sink.c: Requested to rewind 65536 bytes.
D  [alsa-sink] alsa-sink.c: Limited to 2824 bytes.
D  [alsa-sink] alsa-sink.c: before: 706
D  [alsa-sink] alsa-sink.c: after: 706
D  [alsa-sink] alsa-sink.c: Rewound 2824 bytes.
D  [alsa-sink] sink.c: Processing rewind...
D  [alsa-sink] sink.c: latency = 1358
D  [alsa-sink] sink.c: Next volume change in 1358 usec
D  [alsa-sink] sink-input.c: Have to rewind 2824 bytes on render memblockq.
D  [alsa-sink] source.c: Processing rewind...
D  [alsa-sink] sink.c: Next volume change in 1249 usec
D  [alsa-sink] sink.c: Next volume change in 1221 usec
D  [alsa-sink] sink.c: Next volume change in 1201 usec
D  [alsa-sink] sink.c: Next volume change in 872 usec
D  [alsa-sink] sink.c: Next volume change in 842 usec
D  [alsa-sink] sink.c: Next volume change in 819 usec
D  [alsa-sink] sink.c: Next volume change in 799 usec
D  [alsa-sink] sink.c: Next volume change in 764 usec
D  [alsa-sink] sink.c: Next volume change in 744 usec
D  [alsa-sink] sink.c: Volume change to 65536 at 83942369199 was written 0 usec late

另一件值得检查/破解的事情是gstreamer-properties( Alt+ F2 gstreamer-properties Enter)。

如果你不想要pulseaudio，你可以试试ie jack。