更新到ubuntu 17.10后没有声音
安装Ubuntu 17.10后，我没有声音，我没有在声音设备列表中看到我的设备（只有一个 – 数字输出（S / PDIF））：
我有正确安装的声音驱动程序，我执行时听到声音：
aplay -D sysdefault /usr/share/sounds/alsa/Side_Right.wav lspci -nnk | grep -A3 -Fe '[0403]' lspci -nnk | grep -A3 -Fe '[0403]' ：
00:1b.0 Audio device [0403]: Intel Corporation 82801I (ICH9 Family) HD Audio Controller [8086:293e] (rev 02) Subsystem: Micro-Star International Co., Ltd. [MSI] G33/P35 Neo [1462:7360] Kernel driver in use: snd_hda_intel Kernel modules: snd_hda_intel -- 01:00.1 Audio device [0403]: NVIDIA Corporation Device [10de:0fba] (rev a1) Subsystem: Gigabyte Technology Co., Ltd Device [1458:36c5] Kernel driver in use: snd_hda_intel Kernel modules: snd_hda_intel
aplay -l ：
**** List of PLAYBACK Hardware Devices **** card 0: Intel [HDA Intel], device 0: ALC888 Analog [ALC888 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: Intel [HDA Intel], device 1: ALC888 Digital [ALC888 Digital] Subdevices: 0/1 Subdevice #0: subdevice #0 card 1: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: NVidia [HDA NVidia], device 7: HDMI 1 [HDMI 1] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: NVidia [HDA NVidia], device 8: HDMI 2 [HDMI 2] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: NVidia [HDA NVidia], device 9: HDMI 3 [HDMI 3] Subdevices: 1/1 Subdevice #0: subdevice #0
pactl list short sinks （只有一个设备）：
0 alsa_output.pci-0000_00_1b.0.iec958-stereo module-alsa-card.c s16le 2ch 44100Hz IDLE
pactl list cards ：
Card #0 Name: alsa_card.pci-0000_01_00.1 Driver: module-alsa-card.c Owner Module: 6 Properties: alsa.card = "1" alsa.card_name = "HDA NVidia" alsa.long_card_name = "HDA NVidia at 0xfe97c000 irq 17" alsa.driver_name = "snd_hda_intel" device.bus_path = "pci-0000:01:00.1" sysfs.path = "/devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1" device.bus = "pci" device.vendor.id = "10de" device.vendor.name = "NVIDIA Corporation" device.product.id = "0fba" device.string = "1" device.description = "HDA NVidia" module-udev-detect.discovered = "1" device.icon_name = "audio-card-pci" Profiles: output:hdmi-stereo: Digital Stereo (HDMI) Output (sinks: 1, sources: 0, priority: 5400, available: no) output:hdmi-surround: Digital Surround 5.1 (HDMI) Output (sinks: 1, sources: 0, priority: 300, available: no) output:hdmi-surround71: Digital Surround 7.1 (HDMI) Output (sinks: 1, sources: 0, priority: 300, available: no) output:hdmi-stereo-extra1: Digital Stereo (HDMI 2) Output (sinks: 1, sources: 0, priority: 5200, available: no) output:hdmi-surround-extra1: Digital Surround 5.1 (HDMI 2) Output (sinks: 1, sources: 0, priority: 100, available: no) output:hdmi-surround71-extra1: Digital Surround 7.1 (HDMI 2) Output (sinks: 1, sources: 0, priority: 100, available: no) output:hdmi-stereo-extra2: Digital Stereo (HDMI 3) Output (sinks: 1, sources: 0, priority: 5200, available: no) output:hdmi-surround-extra2: Digital Surround 5.1 (HDMI 3) Output (sinks: 1, sources: 0, priority: 100, available: no) output:hdmi-surround71-extra2: Digital Surround 7.1 (HDMI 3) Output (sinks: 1, sources: 0, priority: 100, available: no) output:hdmi-stereo-extra3: Digital Stereo (HDMI 4) Output (sinks: 1, sources: 0, priority: 5200, available: no) output:hdmi-surround-extra3: Digital Surround 5.1 (HDMI 4) Output (sinks: 1, sources: 0, priority: 100, available: no) output:hdmi-surround71-extra3: Digital Surround 7.1 (HDMI 4) Output (sinks: 1, sources: 0, priority: 100, available: no) off: Off (sinks: 0, sources: 0, priority: 0, available: yes) Active Profile: off Ports: hdmi-output-0: HDMI / DisplayPort (priority: 5900, latency offset: 0 usec, not available) Properties: device.icon_name = "video-display" Part of profile(s): output:hdmi-stereo, output:hdmi-surround, output:hdmi-surround71 hdmi-output-1: HDMI / DisplayPort 2 (priority: 5800, latency offset: 0 usec, not available) Properties: device.icon_name = "video-display" Part of profile(s): output:hdmi-stereo-extra1, output:hdmi-surround-extra1, output:hdmi-surround71-extra1 hdmi-output-2: HDMI / DisplayPort 3 (priority: 5700, latency offset: 0 usec, not available) Properties: device.icon_name = "video-display" Part of profile(s): output:hdmi-stereo-extra2, output:hdmi-surround-extra2, output:hdmi-surround71-extra2 hdmi-output-3: HDMI / DisplayPort 4 (priority: 5600, latency offset: 0 usec, not available) Properties: device.icon_name = "video-display" Part of profile(s): output:hdmi-stereo-extra3, output:hdmi-surround-extra3, output:hdmi-surround71-extra3 Card #1 Name: alsa_card.pci-0000_00_1b.0 Driver: module-alsa-card.c Owner Module: 7 Properties: alsa.card = "0" alsa.card_name = "HDA Intel" alsa.long_card_name = "HDA Intel at 0xfcff8000 irq 29" alsa.driver_name = "snd_hda_intel" device.bus_path = "pci-0000:00:1b.0" sysfs.path = "/devices/pci0000:00/0000:00:1b.0/sound/card0" device.bus = "pci" device.vendor.id = "8086" device.vendor.name = "Intel Corporation" device.product.id = "293e" device.product.name = "82801I (ICH9 Family) HD Audio Controller (G33/P35 Neo)" device.form_factor = "internal" device.string = "0" device.description = "Built-in Audio" module-udev-detect.discovered = "1" device.icon_name = "audio-card-pci" Profiles: input:analog-stereo: Analog Stereo Input (sinks: 0, sources: 1, priority: 60, available: yes) output:analog-stereo: Analog Stereo Output (sinks: 1, sources: 0, priority: 6000, available: no) output:analog-stereo+input:analog-stereo: Analog Stereo Duplex (sinks: 1, sources: 1, priority: 6060, available: yes) output:analog-surround-21: Analog Surround 2.1 Output (sinks: 1, sources: 0, priority: 800, available: no) output:analog-surround-21+input:analog-stereo: Analog Surround 2.1 Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 860, available: yes) output:analog-surround-40: Analog Surround 4.0 Output (sinks: 1, sources: 0, priority: 700, available: no) output:analog-surround-40+input:analog-stereo: Analog Surround 4.0 Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 760, available: yes) output:analog-surround-41: Analog Surround 4.1 Output (sinks: 1, sources: 0, priority: 800, available: no) output:analog-surround-41+input:analog-stereo: Analog Surround 4.1 Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 860, available: yes) output:analog-surround-50: Analog Surround 5.0 Output (sinks: 1, sources: 0, priority: 700, available: no) output:analog-surround-50+input:analog-stereo: Analog Surround 5.0 Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 760, available: yes) output:analog-surround-51: Analog Surround 5.1 Output (sinks: 1, sources: 0, priority: 800, available: no) output:analog-surround-51+input:analog-stereo: Analog Surround 5.1 Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 860, available: yes) output:analog-surround-71: Analog Surround 7.1 Output (sinks: 1, sources: 0, priority: 700, available: no) output:analog-surround-71+input:analog-stereo: Analog Surround 7.1 Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 760, available: yes) output:iec958-stereo: Digital Stereo (IEC958) Output (sinks: 1, sources: 0, priority: 5500, available: yes) output:iec958-stereo+input:analog-stereo: Digital Stereo (IEC958) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 5560, available: yes) off: Off (sinks: 0, sources: 0, priority: 0, available: yes) Active Profile: output:iec958-stereo+input:analog-stereo Ports: analog-input-front-mic: Front Microphone (priority: 8500, latency offset: 0 usec, not available) Properties: device.icon_name = "audio-input-microphone" Part of profile(s): input:analog-stereo, output:analog-stereo+input:analog-stereo, output:analog-surround-21+input:analog-stereo, output:analog-surround-40+input:analog-stereo, output:analog-surround-41+input:analog-stereo, output:analog-surround-50+input:analog-stereo, output:analog-surround-51+input:analog-stereo, output:analog-surround-71+input:analog-stereo, output:iec958-stereo+input:analog-stereo analog-input-rear-mic: Rear Microphone (priority: 8200, latency offset: 0 usec, available) Properties: device.icon_name = "audio-input-microphone" Part of profile(s): input:analog-stereo, output:analog-stereo+input:analog-stereo, output:analog-surround-21+input:analog-stereo, output:analog-surround-40+input:analog-stereo, output:analog-surround-41+input:analog-stereo, output:analog-surround-50+input:analog-stereo, output:analog-surround-51+input:analog-stereo, output:analog-surround-71+input:analog-stereo, output:iec958-stereo+input:analog-stereo analog-input-linein: Line In (priority: 8100, latency offset: 0 usec, not available) Part of profile(s): input:analog-stereo, output:analog-stereo+input:analog-stereo, output:analog-surround-21+input:analog-stereo, output:analog-surround-40+input:analog-stereo, output:analog-surround-41+input:analog-stereo, output:analog-surround-50+input:analog-stereo, output:analog-surround-51+input:analog-stereo, output:analog-surround-71+input:analog-stereo, output:iec958-stereo+input:analog-stereo analog-output-lineout: Line Out (priority: 9900, latency offset: 0 usec, not available) Part of profile(s): output:analog-stereo, output:analog-stereo+input:analog-stereo, output:analog-surround-21, output:analog-surround-21+input:analog-stereo, output:analog-surround-40, output:analog-surround-40+input:analog-stereo, output:analog-surround-41, output:analog-surround-41+input:analog-stereo, output:analog-surround-50, output:analog-surround-50+input:analog-stereo, output:analog-surround-51, output:analog-surround-51+input:analog-stereo, output:analog-surround-71, output:analog-surround-71+input:analog-stereo analog-output-headphones: Headphones (priority: 9000, latency offset: 0 usec, not available) Properties: device.icon_name = "audio-headphones" Part of profile(s): output:analog-stereo, output:analog-stereo+input:analog-stereo iec958-stereo-output: Digital Output (S/PDIF) (priority: 0, latency offset: 0 usec) Part of profile(s): output:iec958-stereo, output:iec958-stereo+input:analog-stereo
pactl list sinks ：
Sink #0 State: IDLE Name: alsa_output.pci-0000_00_1b.0.iec958-stereo Description: Built-in Audio Digital Stereo (IEC958) Driver: module-alsa-card.c Sample Specification: s16le 2ch 44100Hz Channel Map: front-left,front-right Owner Module: 7 Mute: no Volume: front-left: 52663 / 80% / -5,70 dB, front-right: 52663 / 80% / -5,70 dB balance 0,00 Base Volume: 65536 / 100% / 0,00 dB Monitor Source: alsa_output.pci-0000_00_1b.0.iec958-stereo.monitor Latency: 371332 usec, configured 371519 usec Flags: HARDWARE HW_MUTE_CTRL DECIBEL_VOLUME LATENCY SET_FORMATS Properties: alsa.resolution_bits = "16" device.api = "alsa" device.class = "sound" alsa.class = "generic" alsa.subclass = "generic-mix" alsa.name = "ALC888 Digital" alsa.id = "ALC888 Digital" alsa.subdevice = "0" alsa.subdevice_name = "subdevice #0" alsa.device = "1" alsa.card = "0" alsa.card_name = "HDA Intel" alsa.long_card_name = "HDA Intel at 0xfcff8000 irq 29" alsa.driver_name = "snd_hda_intel" device.bus_path = "pci-0000:00:1b.0" sysfs.path = "/devices/pci0000:00/0000:00:1b.0/sound/card0" device.bus = "pci" device.vendor.id = "8086" device.vendor.name = "Intel Corporation" device.product.id = "293e" device.product.name = "82801I (ICH9 Family) HD Audio Controller (G33/P35 Neo)" device.form_factor = "internal" device.string = "iec958:0" device.buffering.buffer_size = "65536" device.buffering.fragment_size = "32768" device.access_mode = "mmap+timer" device.profile.name = "iec958-stereo" device.profile.description = "Digital Stereo (IEC958)" device.description = "Built-in Audio Digital Stereo (IEC958)" alsa.mixer_name = "Realtek ALC888" alsa.components = "HDA:10ec0888,14627360,00100001" module-udev-detect.discovered = "1" device.icon_name = "audio-card-pci" Ports: iec958-stereo-output: Digital Output (S/PDIF) (priority: 0) Active Port: iec958-stereo-output Formats: pcm
我在alsamixer看到了我的设备：
在gnome-alsamixer我可以看到“丢失”的设备：
我该怎么做才能解决我的问题？
同样的问题，在ubuntu 16.04 …..点击launcher.parameters.sound并在’输出’我点击了错误的东西，并且不可能回去….
您可以尝试从pulseaudio安装appli’pavucontrol’本机，必须同时安装..使用’pavucontrol’（在法语中命名为’contrôledevolume’），在’output peripheric’之后，访问’配置’，在这里你可以选择好的模拟输入..我不明白为什么它的工作…..祝你好运！
我以前的Ubuntu和Mint版本遇到了这个问题。 如果你打开alsamixer作为root即。 sudo alsamixer和右箭头到最后你可能会发现“自动静音” – 启用。 按enter键并将其更改为禁用。 这是我花费HOURS试图找到的“简单”修复…除非你以root身份打开，否则不起作用。
祝好运。