我已经安装了一个华硕 Xonar DS 7.1声卡开启HP Compaq Elite 8300 CMT。它工作得很好，直到几天后就没有声音了。我必须使用手动选择声卡alsamixer。重启后一切都恢复默认，我必须再次执行此操作。我安装了脉冲音频控制来选择正确的组合以使声音工作。有时它使用模拟环绕 5.1 输出 + 模拟立体声输入工作，有时它使用模拟环绕 7.1 输出 + 模拟立体声输入工作。每次我听新的 mp3 或甚至必须从 youtube 更改视频时，都必须选择配置。
最近几天我读了很多。我已经全新安装了 Ubuntu 18.04。几天来一切正常。请帮我将华硕声卡配置为保持默认状态。pacmd list-sinks显示的内容如下：
3 sink(s) available.
index: 0
name: <alsa_output.pci-0000_00_1b.0.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_1b.0>
module: 7
properties:
alsa.resolution_bits = "16"
device.api = "alsa"
device.class = "sound"
alsa.class = "generic"
alsa.subclass = "generic-mix"
alsa.name = "ALC221 Analog"
alsa.id = "ALC221 Analog"
alsa.subdevice = "0"
alsa.subdevice_name = "subdevice #0"
alsa.device = "0"
alsa.card = "1"
alsa.card_name = "HDA Intel PCH"
alsa.long_card_name = "HDA Intel PCH at 0xf7f30000 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/card1"
device.bus = "pci"
device.vendor.id = "8086"
device.vendor.name = "Intel Corporation"
device.product.id = "1e20"
device.product.name = "7 Series/C216 Chipset Family High Definition Audio Controller"
device.form_factor = "internal"
device.string = "front:1"
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 ALC221"
alsa.components = "HDA:10ec0221,103c3396,00100003"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-pci"
ports:
analog-output-lineout: Line Out (priority 9900, latency offset 0 usec, available: no)
properties:
analog-output-speaker: Speakers (priority 10000, latency offset 0 usec, available: unknown)
properties:
device.icon_name = "audio-speakers"
analog-output-headphones: Headphones (priority 9000, latency offset 0 usec, available: no)
properties:
device.icon_name = "audio-headphones"
active port: <analog-output-speaker>
* index: 9
name: <alsa_output.usb-C-Media_Electronics_Inc._USB_Audio_Device-00.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
state: RUNNING
suspend cause:
priority: 9049
volume: front-left: 41564 / 63% / -11,87 dB, front-right: 41564 / 63% / -11,87 dB
balance 0,00
base volume: 65536 / 100% / 0,00 dB
volume steps: 65537
muted: no
current latency: 55,81 ms
max request: 8 KiB
max rewind: 344 KiB
monitor source: 11
sample spec: s16le 2ch 48000Hz
channel map: front-left,front-right
Stereo
used by: 1
linked by: 1
configured latency: 46,00 ms; range is 46,00 .. 1837,50 ms
card: 3 <alsa_card.usb-C-Media_Electronics_Inc._USB_Audio_Device-00>
module: 26
properties:
alsa.resolution_bits = "16"
device.api = "alsa"
device.class = "sound"
alsa.class = "generic"
alsa.subclass = "generic-mix"
alsa.name = "USB Audio"
alsa.id = "USB Audio"
alsa.subdevice = "0"
alsa.subdevice_name = "subdevice #0"
alsa.device = "0"
alsa.card = "3"
alsa.card_name = "USB Audio Device"
alsa.long_card_name = "C-Media Electronics Inc. USB Audio Device at usb-0000:00:1a.0-1.4, full speed"
alsa.driver_name = "snd_usb_audio"
device.bus_path = "pci-0000:00:1a.0-usb-0:1.4:1.0"
sysfs.path = "/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.4/1-1.4:1.0/sound/card3"
udev.id = "usb-C-Media_Electronics_Inc._USB_Audio_Device-00"
device.bus = "usb"
device.vendor.id = "0d8c"
device.vendor.name = "C-Media Electronics, Inc."
device.product.id = "0012"
device.product.name = "USB Audio Device"
device.serial = "C-Media_Electronics_Inc._USB_Audio_Device"
device.string = "front:3"
device.buffering.buffer_size = "352800"
device.buffering.fragment_size = "176400"
device.access_mode = "mmap+timer"
device.profile.name = "analog-stereo"
device.profile.description = "Analog Stereo"
device.description = "USB Audio Device Analog Stereo"
alsa.mixer_name = "USB Mixer"
alsa.components = "USB0d8c:0012"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-usb"
ports:
analog-output-speaker: Speakers (priority 10000, latency offset 0 usec, available: unknown)
properties:
device.icon_name = "audio-speakers"
active port: <analog-output-speaker>
index: 10
name: <alsa_output.pci-0000_02_01.0.analog-surround-71>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
state: SUSPENDED
suspend cause: IDLE
priority: 9039
volume: front-left: 0 / 0% / -inf dB, front-right: 0 / 0% / -inf dB, rear-left: 0 / 0% / -inf dB, rear-right: 0 / 0% / -inf dB, front-center: 0 / 0% / -inf dB, lfe: 37081 / 57% / -14,84 dB, side-left: 0 / 0% / -inf dB, side-right: 0 / 0% / -inf 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: 12
sample spec: s16le 8ch 44100Hz
channel map: front-left,front-right,rear-left,rear-right,front-center,lfe,side-left,side-right
Surround 7.1
used by: 0
linked by: 0
configured latency: 0,00 ms; range is 0,50 .. 1486,08 ms
card: 2 <alsa_card.pci-0000_02_01.0>
module: 9
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 DS"
alsa.long_card_name = "Asus Virtuoso 66 at 0xd000, irq 21"
alsa.driver_name = "snd_virtuoso"
device.bus_path = "pci-0000:02:01.0"
sysfs.path = "/devices/pci0000:00/0000:00:1e.0/0000:02:01.0/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] (Virtuoso 66 (Xonar DS))"
device.string = "surround71:0"
device.buffering.buffer_size = "1048576"
device.buffering.fragment_size = "1048576"
device.access_mode = "mmap+timer"
device.profile.name = "analog-surround-71"
device.profile.description = "Analog Surround 7.1"
device.description = "CMI8788 [Oxygen HD Audio] (Virtuoso 66 (Xonar DS)) Analog Surround 7.1"
alsa.mixer_name = "AV200"
alsa.components = "WM8776 WM8766 AV200"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-pci"
ports:
analog-output: Analog Output (priority 9900, latency offset 0 usec, available: unknown)
properties:
active port: <analog-output>