我已经在 MacBook 7,1, Mid-2010 上安装了 Ubuntu 19.10 (Eoan Ermine)，A1342。不幸的是（与 Ubuntu 19.04 不同），音频无法正常工作，非常断断续续且失真。
inxi -A：
Audio:
Device-1: NVIDIA MCP89 High Definition Audio driver: snd_hda_intel
Sound Server: ALSA v: k5.3.0-19-generic
使用 lspci-nnk 命令：
00:08.0 Audio device [0403]: NVIDIA Corporation MCP89 High Definition Audio [10de:0d94] (rev a2)
Subsystem: NVIDIA Corporation MCP89 High Definition Audio [10de:cb89]
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel
aplay-l：
**** List of PLAYBACK Hardware Devices ****
card 0: NVidia [HDA NVidia], device 0: CS4206 Analog [CS4206 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 1: CS4206 Digital [CS4206 Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 7: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 8: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
inxi-F：
System:
Host: MacBook7.1 Kernel: 5.3.0-19-generic x86_64 bits: 64
Desktop: Gnome 3.34.1 Distro: Ubuntu 19.10 (Eoan Ermine)
Machine:
Type: Laptop System: Apple product: MacBook7,1 v: 1.0
Mobo: Apple model: Mac-F22C89C8 date: 06/01/10
CPU:
Topology: Dual Core model: Intel Core2 Duo P8600 bits: 64 type: MCP
L2 cache: 3072 KiB
Speed: 796 MHz min/max: 798/2394 MHz Core speeds (MHz): 1: 796 2: 796
Graphics:
Device-1: NVIDIA MCP89 [GeForce 320M] driver: nouveau v: kernel
Display: x11 server: X.Org 1.20.5 driver: nouveau
resolution: 1280x800~60Hz
OpenGL: renderer: NVAF v: 3.3 Mesa 19.2.1
pacmd信息：
Memory blocks currently allocated: 2, size: 113,8 KiB.
Memory blocks allocated during the whole lifetime: 30879, size: 50,1 MiB.
Memory blocks imported from other processes: 0, size: 0 B.
Memory blocks exported to other processes: 0, size: 0 B.
Total sample cache size: 49,9 KiB.
Default sample spec: s16le 2ch 44100Hz
Default channel map: front-left,front-right
Default sink name: alsa_output.pci-0000_00_08.0.analog-stereo
Default source name: alsa_output.pci-0000_00_08.0.analog-stereo.monitor
Memory blocks of type POOL: 2 allocated/14605 accumulated.
Memory blocks of type POOL_EXTERNAL: 0 allocated/310 accumulated.
Memory blocks of type APPENDED: 0 allocated/0 accumulated.
Memory blocks of type USER: 0 allocated/0 accumulated.
Memory blocks of type FIXED: 0 allocated/13130 accumulated.
Memory blocks of type IMPORTED: 0 allocated/3144 accumulated.
25 module(s) loaded.
index: 0
name: <module-device-restore>
argument: <>
used: -1
load once: yes
properties:
module.author = "Lennart Poettering"
module.description = "Automatically restore the volume/mute state of devices"
module.version = "13.0"
index: 1
name: <module-stream-restore>
argument: <>
used: -1
load once: yes
properties:
module.author = "Lennart Poettering"
module.description = "Automatically restore the volume/mute/device state of streams"
module.version = "13.0"
index: 2
name: <module-card-restore>
argument: <>
used: -1
load once: yes
properties:
module.author = "Lennart Poettering"
module.description = "Automatically restore profile of cards"
module.version = "13.0"
index: 3
name: <module-augment-properties>
argument: <>
used: -1
load once: yes
properties:
module.author = "Lennart Poettering"
module.description = "Augment the property sets of streams with additional static information"
module.version = "13.0"
index: 4
name: <module-switch-on-port-available>
argument: <>
used: -1
load once: yes
properties:
module.author = "David Henningsson"
module.description = "Switches ports and profiles when devices are plugged/unplugged"
module.version = "13.0"
index: 5
name: <module-switch-on-connect>
argument: <>
used: -1
load once: yes
properties:
module.author = "Michael Terry"
module.description = "When a sink/source is added, switch to it or conditionally switch to it"
module.version = "13.0"
index: 6
name: <module-udev-detect>
argument: <>
used: -1
load once: yes
properties:
module.author = "Lennart Poettering"
module.description = "Detect available audio hardware and load matching drivers"
module.version = "13.0"
index: 7
name: <module-alsa-card>
argument: <device_id="0" name="pci-0000_00_08.0" card_name="alsa_card.pci-0000_00_08.0" namereg_fail=false tsched=yes fixed_latency_range=no ignore_dB=no deferred_volume=yes use_ucm=yes avoid_resampling=no card_properties="module-udev-detect.discovered=1">
used: 0
load once: no
properties:
module.author = "Lennart Poettering"
module.description = "ALSA Card"
module.version = "13.0"
index: 8
name: <module-bluetooth-policy>
argument: <>
used: -1
load once: yes
properties:
module.author = "Frédéric Dalleau, Pali Rohár"
module.description = "Policy module to make using bluetooth devices out-of-the-box easier"
module.version = "13.0"
index: 9
name: <module-bluetooth-discover>
argument: <>
used: -1
load once: yes
properties:
module.author = "João Paulo Rechi Vita"
module.description = "Detect available Bluetooth daemon and load the corresponding discovery module"
module.version = "13.0"
index: 10
name: <module-bluez5-discover>
argument: <>
used: -1
load once: yes
properties:
module.author = "João Paulo Rechi Vita"
module.description = "Detect available BlueZ 5 Bluetooth audio devices and load BlueZ 5 Bluetooth audio drivers"
module.version = "13.0"
index: 11
name: <module-native-protocol-unix>
argument: <>
used: -1
load once: no
properties:
module.author = "Lennart Poettering"
module.description = "Native protocol (UNIX sockets)"
module.version = "13.0"
index: 12
name: <module-default-device-restore>
argument: <>
used: -1
load once: yes
properties:
module.author = "Lennart Poettering"
module.description = "Automatically restore the default sink and source"
module.version = "13.0"
index: 13
name: <module-rescue-streams>
argument: <>
used: -1
load once: yes
properties:
module.author = "Lennart Poettering"
module.description = "When a sink/source is removed, try to move its streams to the default sink/source"
module.version = "13.0"
index: 14
name: <module-always-sink>
argument: <>
used: -1
load once: yes
properties:
module.author = "Colin Guthrie"
module.description = "Always keeps at least one sink loaded even if it's a null one"
module.version = "13.0"
index: 15
name: <module-intended-roles>
argument: <>
used: -1
load once: yes
properties:
module.author = "Lennart Poettering"
module.description = "Automatically set device of streams based on intended roles of devices"
module.version = "13.0"
index: 16
name: <module-suspend-on-idle>
argument: <>
used: -1
load once: yes
properties:
module.author = "Lennart Poettering"
module.description = "When a sink/source is idle for too long, suspend it"
module.version = "13.0"
index: 17
name: <module-console-kit>
argument: <>
used: -1
load once: yes
properties:
module.author = "Lennart Poettering"
module.description = "Create a client for each ConsoleKit session of this user"
module.version = "13.0"
index: 18
name: <module-systemd-login>
argument: <>
used: -1
load once: yes
properties:
module.author = "Lennart Poettering"
module.description = "Create a client for each login session of this user"
module.version = "13.0"
index: 19
name: <module-position-event-sounds>
argument: <>
used: -1
load once: yes
properties:
module.author = "Lennart Poettering"
module.description = "Position event sounds between L and R depending on the position on screen of the widget triggering them."
module.version = "13.0"
index: 20
name: <module-role-cork>
argument: <>
used: -1
load once: yes
properties:
module.author = "Lennart Poettering"
module.description = "Mute & cork streams with certain roles while others exist"
module.version = "13.0"
index: 21
name: <module-snap-policy>
argument: <>
used: -1
load once: yes
properties:
module.author = "Canonical Ltd"
module.description = "Ubuntu Snap policy management"
module.version = "13.0"
index: 22
name: <module-filter-heuristics>
argument: <>
used: -1
load once: yes
properties:
module.author = "Colin Guthrie"
module.description = "Detect when various filters are desirable"
module.version = "13.0"
index: 23
name: <module-filter-apply>
argument: <>
used: -1
load once: yes
properties:
module.author = "Colin Guthrie"
module.description = "Load filter sinks automatically when needed"
module.version = "13.0"
index: 24
name: <module-cli-protocol-unix>
argument: <>
used: -1
load once: no
properties:
module.author = "Lennart Poettering"
module.description = "Command line interface protocol (UNIX sockets)"
module.version = "13.0"
1 sink(s) available.
* index: 0
name: <alsa_output.pci-0000_00_08.0.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: 29115 / 44% / -21,14 dB, front-right: 29115 / 44% / -21,14 dB
balance 0,00
base volume: 52057 / 79% / -6,00 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_08.0>
module: 7
properties:
alsa.resolution_bits = "16"
device.api = "alsa"
device.class = "sound"
alsa.class = "generic"
alsa.subclass = "generic-mix"
alsa.name = "CS4206 Analog"
alsa.id = "CS4206 Analog"
alsa.subdevice = "0"
alsa.subdevice_name = "subdevice #0"
alsa.device = "0"
alsa.card = "0"
alsa.card_name = "HDA NVidia"
alsa.long_card_name = "HDA NVidia at 0xd3280000 irq 23"
alsa.driver_name = "snd_hda_intel"
device.bus_path = "pci-0000:00:08.0"
sysfs.path = "/devices/pci0000:00/0000:00:08.0/sound/card0"
device.bus = "pci"
device.vendor.id = "10de"
device.vendor.name = "NVIDIA Corporation"
device.product.id = "0d94"
device.product.name = "MCP89 High Definition 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 = "Cirrus Logic CS4206"
alsa.components = "HDA:10134206,106b1f00,00100301 HDA:10de000c,10de0101,00100200"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-pci"
ports:
analog-output-speaker: Speakers (priority 10000, latency offset 0 usec, available: unknown)
properties:
device.icon_name = "audio-speakers"
analog-output-headphones: Headphones (priority 9900, latency offset 0 usec, available: no)
properties:
device.icon_name = "audio-headphones"
active port: <analog-output-speaker>
1 source(s) available.
* index: 0
name: <alsa_output.pci-0000_00_08.0.analog-stereo.monitor>
driver: <module-alsa-card.c>
flags: DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
state: SUSPENDED
suspend cause: IDLE
priority: 1030
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 rewind: 0 KiB
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
monitor_of: 0
card: 0 <alsa_card.pci-0000_00_08.0>
module: 7
properties:
device.description = "Monitor of Built-in Audio Analog Stereo"
device.class = "monitor"
alsa.card = "0"
alsa.card_name = "HDA NVidia"
alsa.long_card_name = "HDA NVidia at 0xd3280000 irq 23"
alsa.driver_name = "snd_hda_intel"
device.bus_path = "pci-0000:00:08.0"
sysfs.path = "/devices/pci0000:00/0000:00:08.0/sound/card0"
device.bus = "pci"
device.vendor.id = "10de"
device.vendor.name = "NVIDIA Corporation"
device.product.id = "0d94"
device.product.name = "MCP89 High Definition Audio"
device.form_factor = "internal"
device.string = "0"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-pci"
11 client(s) logged in.
index: 0
driver: <module-systemd-login.c>
owner module: 18
properties:
application.name = "Login Session 1"
systemd-login.session = "1"
index: 4
driver: <protocol-native.c>
owner module: 11
properties:
application.name = "GNOME Shell Volume Control"
native-protocol.peer = "UNIX socket client"
native-protocol.version = "33"
application.id = "org.gnome.VolumeControl"
application.icon_name = "multimedia-volume-control"
application.version = "3.34.1"
application.process.id = "1171"
application.process.user =
application.process.host =
application.process.binary = "gnome-shell"
application.language = "en_US.UTF-8"
window.x11.display = ":0"
application.process.machine_id = "3510375181dd40a892dccb932abb57ce"
index: 5
driver: <protocol-native.c>
owner module: 11
properties:
application.name = "GNOME Volume Control Media Keys"
native-protocol.peer = "UNIX socket client"
native-protocol.version = "33"
application.id = "org.gnome.VolumeControl"
application.icon_name = "multimedia-volume-control"
application.version = ""
application.process.id = "1371"
application.process.user =
application.process.host =
application.process.binary = "gsd-media-keys"
application.language = "en_US.UTF-8"
window.x11.display = ":0"
application.process.machine_id = "3510375181dd40a892dccb932abb57ce"
index: 7
driver: <protocol-native.c>
owner module: 11
properties:
application.name = "Firefox"
native-protocol.peer = "UNIX socket client"
native-protocol.version = "33"
window.x11.display = ":0"
window.x11.screen = "0"
application.process.id = "2756"
application.process.user =
application.process.host =
application.process.binary = "firefox"
application.language = "en_US.UTF-8"
application.process.machine_id = "3510375181dd40a892dccb932abb57ce"
application.icon_name = "firefox"
index: 8
driver: <protocol-native.c>
owner module: 11
properties:
application.name = "Firefox"
native-protocol.peer = "UNIX socket client"
native-protocol.version = "33"
application.icon_name = "firefox"
application.version = "69.0.3"
application.process.id = "2756"
application.process.user =
application.process.host =
application.process.binary = "firefox"
application.language = "en_US.UTF-8"
window.x11.display = ":0"
application.process.machine_id = "3510375181dd40a892dccb932abb57ce"
index: 9
driver: <protocol-native.c>
owner module: 11
properties:
application.name = "AudioIPC Server"
native-protocol.peer = "UNIX socket client"
native-protocol.version = "33"
application.process.id = "2756"
application.process.user =
application.process.host =
application.process.binary = "firefox"
application.language = "en_US.UTF-8"
window.x11.display = ":0"
application.process.machine_id = "3510375181dd40a892dccb932abb57ce"
application.icon_name = "firefox"
index: 10
driver: <protocol-native.c>
owner module: 11
properties:
application.name = "Terminal"
native-protocol.peer = "UNIX socket client"
native-protocol.version = "33"
application.icon_name = "org.gnome.Terminal"
window.x11.display = ":0"
window.x11.screen = "0"
application.process.id = "3166"
application.process.user =
application.process.host =
application.process.binary = "gnome-terminal-server"
application.language = "en_US.UTF-8"
application.process.machine_id = "3510375181dd40a892dccb932abb57ce"
index: 12
driver: <protocol-native.c>
owner module: 11
properties:
application.name = "GNOME Settings"
native-protocol.peer = "UNIX socket client"
native-protocol.version = "33"
application.id = "org.gnome.VolumeControl"
application.icon_name = "multimedia-volume-control"
application.version = ""
application.process.id = "4207"
application.process.user =
application.process.host =
application.process.binary = "gnome-control-center"
application.language = "en_US.UTF-8"
window.x11.display = ":0"
application.process.machine_id = "3510375181dd40a892dccb932abb57ce"
index: 13
driver: <protocol-native.c>
owner module: 11
properties:
application.name = "Settings"
native-protocol.peer = "UNIX socket client"
native-protocol.version = "33"
window.x11.display = ":0"
window.x11.screen = "0"
application.process.id = "4207"
application.process.user =
application.process.host =
application.process.binary = "gnome-control-center"
application.language = "en_US.UTF-8"
application.process.machine_id = "3510375181dd40a892dccb932abb57ce"
application.icon_name = "org.gnome.Settings"
index: 14
driver: <protocol-native.c>
owner module: 11
properties:
application.name = "Mutter"
native-protocol.peer = "UNIX socket client"
native-protocol.version = "33"
application.process.id = "1171"
application.process.user =
application.process.host =
application.process.binary = "gnome-shell"
application.language = "en_US.UTF-8"
window.x11.display = ":0"
application.process.machine_id = "3510375181dd40a892dccb932abb57ce"
index: 16
driver: <cli.c>
owner module: 24
properties:
application.name = "UNIX socket client"
1 card(s) available.
index: 0
name: <alsa_card.pci-0000_00_08.0>
driver: <module-alsa-card.c>
owner module: 7
properties:
alsa.card = "0"
alsa.card_name = "HDA NVidia"
alsa.long_card_name = "HDA NVidia at 0xd3280000 irq 23"
alsa.driver_name = "snd_hda_intel"
device.bus_path = "pci-0000:00:08.0"
sysfs.path = "/devices/pci0000:00/0000:00:08.0/sound/card0"
device.bus = "pci"
device.vendor.id = "10de"
device.vendor.name = "NVIDIA Corporation"
device.product.id = "0d94"
device.product.name = "MCP89 High Definition Audio"
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 (priority 65, available: unknown)
output:analog-stereo: Analog Stereo Output (priority 6500, available: unknown)
output:analog-stereo+input:analog-stereo: Analog Stereo Duplex (priority 6565, available: unknown)
output:analog-surround-21: Analog Surround 2.1 Output (priority 1300, available: unknown)
output:analog-surround-21+input:analog-stereo: Analog Surround 2.1 Output + Analog Stereo Input (priority 1365, available: unknown)
output:analog-surround-40: Analog Surround 4.0 Output (priority 1200, available: unknown)
output:analog-surround-40+input:analog-stereo: Analog Surround 4.0 Output + Analog Stereo Input (priority 1265, available: unknown)
output:iec958-stereo: Digital Stereo (IEC958) Output (priority 5500, available: unknown)
output:iec958-stereo+input:analog-stereo: Digital Stereo (IEC958) Output + Analog Stereo Input (priority 5565, available: unknown)
output:hdmi-stereo: Digital Stereo (HDMI) Output (priority 5900, available: no)
output:hdmi-stereo+input:analog-stereo: Digital Stereo (HDMI) Output + Analog Stereo Input (priority 5965, available: no)
output:hdmi-surround: Digital Surround 5.1 (HDMI) Output (priority 800, available: no)
output:hdmi-surround+input:analog-stereo: Digital Surround 5.1 (HDMI) Output + Analog Stereo Input (priority 865, available: no)
output:hdmi-surround71: Digital Surround 7.1 (HDMI) Output (priority 800, available: no)
output:hdmi-surround71+input:analog-stereo: Digital Surround 7.1 (HDMI) Output + Analog Stereo Input (priority 865, available: no)
output:hdmi-stereo-extra1: Digital Stereo (HDMI 2) Output (priority 5700, available: no)
output:hdmi-stereo-extra1+input:analog-stereo: Digital Stereo (HDMI 2) Output + Analog Stereo Input (priority 5765, available: no)
output:hdmi-surround-extra1: Digital Surround 5.1 (HDMI 2) Output (priority 600, available: no)
output:hdmi-surround-extra1+input:analog-stereo: Digital Surround 5.1 (HDMI 2) Output + Analog Stereo Input (priority 665, available: no)
output:hdmi-surround71-extra1: Digital Surround 7.1 (HDMI 2) Output (priority 600, available: no)
output:hdmi-surround71-extra1+input:analog-stereo: Digital Surround 7.1 (HDMI 2) Output + Analog Stereo Input (priority 665, available: no)
output:hdmi-stereo-extra2: Digital Stereo (HDMI 3) Output (priority 5700, available: no)
output:hdmi-stereo-extra2+input:analog-stereo: Digital Stereo (HDMI 3) Output + Analog Stereo Input (priority 5765, available: no)
output:hdmi-surround-extra2: Digital Surround 5.1 (HDMI 3) Output (priority 600, available: no)
output:hdmi-surround-extra2+input:analog-stereo: Digital Surround 5.1 (HDMI 3) Output + Analog Stereo Input (priority 665, available: no)
output:hdmi-surround71-extra2: Digital Surround 7.1 (HDMI 3) Output (priority 600, available: no)
output:hdmi-surround71-extra2+input:analog-stereo: Digital Surround 7.1 (HDMI 3) Output + Analog Stereo Input (priority 665, available: no)
off: Off (priority 0, available: unknown)
active profile: <output:analog-stereo>
sinks:
alsa_output.pci-0000_00_08.0.analog-stereo/#0: Built-in Audio Analog Stereo
sources:
alsa_output.pci-0000_00_08.0.analog-stereo.monitor/#0: Monitor of Built-in Audio Analog Stereo
ports:
analog-input-mic: Microphone (priority 8700, latency offset 0 usec, available: unknown)
properties:
device.icon_name = "audio-input-microphone"
analog-output-speaker: Speakers (priority 10000, latency offset 0 usec, available: unknown)
properties:
device.icon_name = "audio-speakers"
analog-output-headphones: Headphones (priority 9900, latency offset 0 usec, available: no)
properties:
device.icon_name = "audio-headphones"
iec958-stereo-output: Digital Output (S/PDIF) (priority 0, latency offset 0 usec, available: unknown)
properties:
hdmi-output-0: HDMI / DisplayPort (priority 5900, latency offset 0 usec, available: no)
properties:
device.icon_name = "video-display"
hdmi-output-1: HDMI / DisplayPort 2 (priority 5800, latency offset 0 usec, available: no)
properties:
device.icon_name = "video-display"
hdmi-output-2: HDMI / DisplayPort 3 (priority 5700, latency offset 0 usec, available: no)
properties:
device.icon_name = "video-display"
0 sink input(s) available.
0 source output(s) available.
1 cache entrie(s) available.
name: <bell-window-system>
index: 0
sample spec: s16le 2ch 44100Hz
channel map: front-left,front-right
Stereo
length: 51048
duration: 0,3 s
volume: n/a
balance 0,00
lazy: no
filename: <n/a>
properties:
media.role = "event"
event.description = "Bell event"
event.id = "bell-window-system"
media.name = "bell-window-system"
media.filename = "/usr/share//sounds/Yaru/stereo/bell.oga"
application.name = "Mutter"
native-protocol.peer = "UNIX socket client"
native-protocol.version = "33"
application.process.id = "1171"
application.process.user = "Macbook"
application.process.host = "MacBook"
application.process.binary = "gnome-shell"
application.language = "en_US.UTF-8"
window.x11.display = ":0"
application.process.machine_id = "3510375181dd40a892dccb932abb57ce"