我刚刚在新的Lenovo E470计算机上安装了Ubuntu 16.04 LTE。没有检测到声音设备，我的意思是：
同样，没有检测到输入设备。一些可能有用的信息：
aplay -l返回
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 3: HDMI 0 [HDMI 0]
Subdevices: 0/1
Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 7: HDMI 1 [HDMI 1]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 8: HDMI 2 [HDMI 2]
Subdevices: 1/1
Subdevice #0: subdevice #0
无论如何，音频设备存在：sudo lspci -v返回（以及其他）
00:1f.3 Audio device: Intel Corporation Device 9d71 (rev 21)
Subsystem: Lenovo Device 505b
Flags: bus master, fast devsel, latency 64, IRQ 16
Memory at f4420000 (64-bit, non-prefetchable) [size=16K]
Memory at f4410000 (64-bit, non-prefetchable) [size=64K]
Capabilities: [50] Power Management version 3
Capabilities: [60] MSI: Enable- Count=1/1 Maskable- 64bit+
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel
我试图强制重新加载alsa：sudo alsa force-reload返回
Terminating processes: 10509 (failed: processes still using sound devices: 30977(pulseaudio)).
Unloading ALSA sound driver modules: snd-seq-midi snd-seq-midi-event snd-seq snd-rawmidi snd-seq-device snd-hda-codec-hdmi snd-hda-intel snd-hda-codec snd-hda-core snd-hwdep snd-pcm snd-timer (failed: modules still loaded: snd-hda-codec-hdmi snd-hda-intel snd-hda-codec snd-hda-core snd-hwdep snd-pcm snd-timer).
Loading ALSA sound driver modules: snd-seq-midi snd-seq-midi-event snd-seq snd-rawmidi snd-seq-device snd-hda-codec-hdmi snd-hda-intel snd-hda-codec snd-hda-core snd-hwdep snd-pcm snd-timer.
列出pacmd中的接收器： pacmd
Welcome to PulseAudio 8.0! Use "help" for usage information.
>>> list-sinks
1 sink(s) available.
* index: 0
name: <alsa_output.pci-0000_00_1f.3.hdmi-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
state: IDLE
suspend cause:
priority: 9950
volume: front-left: 53740 / 82% / -5.17 dB, front-right: 53740 / 82% / -5.17 dB
balance 0.00
base volume: 65536 / 100% / 0.00 dB
volume steps: 65537
muted: no
current latency: 370.83 ms
max request: 64 KiB
max rewind: 64 KiB
monitor source: 0
sample spec: s16le 2ch 44100Hz
channel map: front-left,front-right
Stereo
used by: 0
linked by: 0
configured latency: 371.52 ms; range is 0.50 .. 371.52 ms
card: 0 <alsa_card.pci-0000_00_1f.3>
module: 6
properties:
alsa.resolution_bits = "16"
device.api = "alsa"
device.class = "sound"
alsa.class = "generic"
alsa.subclass = "generic-mix"
alsa.name = "HDMI 0"
alsa.id = "HDMI 0"
alsa.subdevice = "0"
alsa.subdevice_name = "subdevice #0"
alsa.device = "3"
alsa.card = "0"
alsa.card_name = "HDA Intel"
alsa.long_card_name = "HDA Intel at 0xf4420000 irq 126"
alsa.driver_name = "snd_hda_intel"
device.bus_path = "pci-0000:00:1f.3"
sysfs.path = "/devices/pci0000:00/0000:00:1f.3/sound/card0"
device.bus = "pci"
device.vendor.id = "8086"
device.vendor.name = "Intel Corporation"
device.product.id = "9d71"
device.form_factor = "internal"
device.string = "hdmi:0"
device.buffering.buffer_size = "65536"
device.buffering.fragment_size = "32768"
device.access_mode = "mmap+timer"
device.profile.name = "hdmi-stereo"
device.profile.description = "Digital Stereo (HDMI)"
device.description = "Built-in Audio Digital Stereo (HDMI)"
alsa.mixer_name = "Intel Kabylake HDMI"
alsa.components = "HDA:8086280b,17aa505b,00100000"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-pci"
ports:
hdmi-output-0: HDMI / DisplayPort (priority 5900, latency offset 0 usec, available: no)
properties:
device.icon_name = "video-display"
active port: <hdmi-output-0>
我应该提一下，我事先无法在这台机器上产生任何声音。
预先感谢您的宝贵时间，如果可以提供更多有用的信息，请告诉我。