按照标准说明调整音量（单击菜单栏上的声音菜单，向左或向右移动音量滑块）时，音量没有任何变化，直到“静音”。无论滑块位置（百分比）或静音如何，我得到的都是最大音量。除此之外，声音工作正常。
$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: DGX [Xonar DGX], device 0: Multichannel [Multichannel]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: DGX [Xonar DGX], device 1: Digital [Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
我怀疑这是硬件问题，因为在我之前安装的 16.04LTS 上，它运行正常，直到我把它弄坏了，然后在一个全新的驱动器上进行了全新安装
*编辑-添加请求的输出
$ pactl list sinks
Sink #0
State: SUSPENDED
Name: alsa_output.pci-0000_06_04.0.analog-stereo
Description: CMI8788 [Oxygen HD Audio] Analog Stereo
Driver: module-alsa-card.c
Sample Specification: s16le 2ch 48000Hz
Channel Map: front-left,front-right
Owner Module: 6
Mute: no
Volume: front-left: 56797 / 87% / -3.73 dB, front-right: 56797 / 87% / -3.73 dB
balance 0.00
Base Volume: 65536 / 100% / 0.00 dB
Monitor Source: alsa_output.pci-0000_06_04.0.analog-stereo.monitor
Latency: 0 usec, configured 0 usec
Flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY
Properties:
alsa.resolution_bits = "16"
device.api = "alsa"
device.class = "sound"
alsa.class = "generic"
alsa.subclass = "generic-mix"
alsa.name = "Multichannel"
alsa.id = "Multichannel"
alsa.subdevice = "0"
alsa.subdevice_name = "subdevice #0"
alsa.device = "0"
alsa.card = "0"
alsa.card_name = "Xonar DGX"
alsa.long_card_name = "C-Media Oxygen HD Audio at 0xec00, irq 17"
alsa.driver_name = "snd_oxygen"
device.bus_path = "pci-0000:06:04.0"
sysfs.path = "/devices/pci0000:00/0000:00:1c.5/0000:05:00.0/0000:06:04.0/sound/card0"
device.bus = "pci"
device.vendor.id = "13f6"
device.vendor.name = "C-Media Electronics Inc"
device.product.id = "8788"
device.product.name = "CMI8788 [Oxygen HD Audio]"
device.string = "front:0"
device.buffering.buffer_size = "352800"
device.buffering.fragment_size = "352800"
device.access_mode = "mmap+timer"
device.profile.name = "analog-stereo"
device.profile.description = "Analog Stereo"
device.description = "CMI8788 [Oxygen HD Audio] Analog Stereo"
alsa.mixer_name = "CMI8786"
alsa.components = "CS4245 CMI8786"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-pci"
Ports:
analog-output-headphones: Headphones (priority: 9000)
Active Port: analog-output-headphones
Formats:
pcm