我看过很多类似的问题，但不幸的是，解决方案对我没有用。我最近安装了 Ubuntu 18.04，我的扬声器不工作，也没有在设置中检测到它们，运行 pacmd 命令后它们实际上被列为不可用。它们在 Windows 上运行良好，所以问题一定与 ubuntu 中驱动程序的兼容性有关，但我想一定有一些设置可以解决这个问题。下面是我从接收器列表中获得的内容：
1 sink(s) available.
* index: 0
name: <alsa_output.pci-0000_00_1f.3.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
state: SUSPENDED
suspend cause: IDLE
priority: 9039
volume: front-left: 65536 / 100% / 0.00 dB, front-right: 65536 / 100% / 0.00 dB
balance 0.00
base volume: 65536 / 100% / 0.00 dB
volume steps: 65537
muted: no
current latency: 0.00 ms
max request: 0 KiB
max rewind: 0 KiB
monitor source: 0
sample spec: s16le 2ch 44100Hz
channel map: front-left,front-right
Stereo
used by: 0
linked by: 0
configured latency: 0.00 ms; range is 0.50 .. 371.52 ms
card: 0 <alsa_card.pci-0000_00_1f.3>
module: 7
properties:
alsa.resolution_bits = "16"
device.api = "alsa"
device.class = "sound"
alsa.class = "generic"
alsa.subclass = "generic-mix"
alsa.name = "ALC255 Analog"
alsa.id = "ALC255 Analog"
alsa.subdevice = "0"
alsa.subdevice_name = "subdevice #0"
alsa.device = "0"
alsa.card = "0"
alsa.card_name = "HDA Intel PCH"
alsa.long_card_name = "HDA Intel PCH at 0xb4520000 irq 134"
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.product.name = "Sunrise Point-LP HD Audio"
device.form_factor = "internal"
device.string = "front:0"
device.buffering.buffer_size = "65536"
device.buffering.fragment_size = "32768"
device.access_mode = "mmap+timer"
device.profile.name = "analog-stereo"
device.profile.description = "Analog Stereo"
device.description = "Built-in Audio Analog Stereo"
alsa.mixer_name = "Realtek ALC255"
alsa.components = "HDA:10ec0255,10251094,00100002 HDA:8086280b,80860101,00100000"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-pci"
ports:
analog-output-speaker: Speakers (priority 10000, latency offset 0 usec, available: no)
properties:
device.icon_name = "audio-speakers"
analog-output-headphones: Headphones (priority 9000, latency offset 0 usec, available: yes)
properties:
device.icon_name = "audio-headphones"
active port: <analog-output-headphones>
在我看来，耳机和扬声器位于同一个水槽中，尽管如您所见，它显示扬声器不可用。有人知道如何处理吗？我自己试过了，但我开始放弃了……以下是有关我的声卡的详细信息
$ lspci -v | grep -A7 -i "audio"
00:1f.3 Audio device: Intel Corporation Sunrise Point-LP HD Audio (rev 21)
Subsystem: Acer Incorporated [ALI] Sunrise Point-LP HD Audio
Flags: bus master, fast devsel, latency 32, IRQ 132
Memory at b4520000 (64-bit, non-prefetchable) [size=16K]
Memory at b4510000 (64-bit, non-prefetchable) [size=64K]
Capabilities: <access denied>
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel, snd_soc_skl
答案1
对于遇到此问题的人，如果其他类似问题中的解决方案不起作用，例如使用 pavucontrol 等，也许您需要像我的情况一样，通过在 alsamixer 播放单元中向右滚动来查看是否启用了自动静音，因为如果启用了自动静音，则仅从 alsamixer 提高扬声器的音量不足以解决问题。因此，第一步是确保播放单元的音量没有静音。
和第二步确保自动静音功能已禁用。
