さて、似たような質問があることを知っていますが、その答えのどれも実際に私の問題を解決できませんでした。私はDebian 10（uname -a: Linux msi-debian 4.19.0-6-amd64 #1 SMP Debian 4.19.67-2 (2019-08-28) x86_64 GNU/Linux）を実行しています。
問題は、マイクとヘッドフォンが動作してもスピーカーでは音が出ないということです。
一方、スピーカーがミュートされると、システムはそれを検出します。私のコンピュータ情報は次のとおりです。
$ inxi -Fx
System: Host: msi-debian Kernel: 4.19.0-6-amd64 x86_64 bits: 64 compiler: gcc v: 8.3.0 Desktop: Gnome 3.30.2
Distro: Debian GNU/Linux 10 (buster)
Machine: Type: Laptop System: Micro-Star product: GL63 8SE v: REV:1.0 serial: <root required>
Mobo: Micro-Star model: MS-16P7 v: REV:1.0 serial: <root required> UEFI: American Megatrends v: E16P7IMS.105
date: 11/26/2018
Battery: ID-1: BAT1 charge: 34.1 Wh condition: 49.6/53.4 Wh (93%) model: MSI BIF0_9 status: Discharging
CPU: Topology: 6-Core model: Intel Core i7-8750H bits: 64 type: MT MCP arch: Kaby Lake rev: A L2 cache: 9216 KiB
flags: lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 52992
Speed: 800 MHz min/max: 800/4100 MHz Core speeds (MHz): 1: 800 2: 800 3: 801 4: 800 5: 800 6: 800 7: 800 8: 800
9: 800 10: 800 11: 800 12: 800
Graphics: Device-1: Intel UHD Graphics 630 vendor: Micro-Star MSI driver: i915 v: kernel bus ID: 00:02.0
Device-2: NVIDIA TU106M [GeForce RTX 2060 Mobile] vendor: Micro-Star MSI driver: nvidia v: 418.74 bus ID: 01:00.0
Display: x11 server: X.Org 1.20.4 driver: modesetting,nouveau,nvidia unloaded: fbdev,vesa
resolution: 1920x1080~120Hz
OpenGL: renderer: Mesa DRI Intel UHD Graphics 630 (Coffeelake 3x8 GT2) v: 4.5 Mesa 18.3.6 direct render: Yes
Audio: Device-1: Intel Cannon Lake PCH cAVS vendor: Micro-Star MSI driver: snd_hda_intel v: kernel bus ID: 00:1f.3
Device-2: NVIDIA TU106 High Definition Audio vendor: Micro-Star MSI driver: snd_hda_intel v: kernel bus ID: 01:00.1
Sound Server: ALSA v: k4.19.0-6-amd64
Network: Device-1: Intel Wireless-AC 9560 [Jefferson Peak] driver: iwlwifi v: kernel port: 6000 bus ID: 00:14.3
IF: wlo1 state: up mac: 48:a4:72:bd:e7:b4
Device-2: Qualcomm Atheros Killer E2400 Gigabit Ethernet vendor: Micro-Star MSI driver: alx v: kernel port: 3000
bus ID: 03:00.0
IF: enp3s0 state: down mac: 00:d8:61:05:39:c3
IF-ID-1: docker0 state: down mac: 02:42:fc:9c:14:12
Drives: Local Storage: total: 1.14 TiB used: 6.68 GiB (0.6%)
ID-1: /dev/nvme0n1 vendor: Kingston model: RBUSNS8154P3256GJ size: 238.47 GiB
ID-2: /dev/sda vendor: Seagate model: ST1000LM049-2GH172 size: 931.51 GiB
Partition: ID-1: / size: 91.17 GiB used: 5.95 GiB (6.5%) fs: ext4 dev: /dev/sda4
ID-2: /home size: 137.24 GiB used: 749.6 MiB (0.5%) fs: ext4 dev: /dev/sda5
ID-3: swap-1 size: 15.82 GiB used: 0 KiB (0.0%) fs: swap dev: /dev/sda6
Sensors: System Temperatures: cpu: 49.0 C mobo: N/A
Fan Speeds (RPM): N/A
Info: Processes: 297 Uptime: 1h 58m Memory: 15.51 GiB used: 3.01 GiB (19.4%) Init: systemd runlevel: 5 Compilers:
gcc: 8.3.0 Shell: bash v: 5.0.3 inxi: 3.0.32
パルスオーディオの情報は次のとおりです。
$ pacmd list-cards
2 card(s) available.
index: 0
name: <alsa_card.pci-0000_01_00.1>
driver: <module-alsa-card.c>
owner module: 6
properties:
alsa.card = "1"
alsa.card_name = "HDA NVidia"
alsa.long_card_name = "HDA NVidia at 0xa5080000 irq 17"
alsa.driver_name = "snd_hda_intel"
device.bus_path = "pci-0000:01:00.1"
sysfs.path = "/devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1"
device.bus = "pci"
device.vendor.id = "10de"
device.vendor.name = "NVIDIA Corporation"
device.product.id = "10f9"
device.product.name = "TU106 High Definition Audio Controller"
device.string = "1"
device.description = "TU106 High Definition Audio Controller"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-pci"
profiles:
output:hdmi-stereo: Digital Stereo (HDMI) Output (priority 5900, available: no)
output:hdmi-surround: Digital Surround 5.1 (HDMI) Output (priority 800, available: no)
output:hdmi-surround71: Digital Surround 7.1 (HDMI) Output (priority 800, available: no)
output:hdmi-stereo-extra1: Digital Stereo (HDMI 2) Output (priority 5700, available: no)
output:hdmi-surround-extra1: Digital Surround 5.1 (HDMI 2) Output (priority 600, available: no)
output:hdmi-surround71-extra1: Digital Surround 7.1 (HDMI 2) Output (priority 600, available: no)
off: Inactiu (priority 0, available: unknown)
active profile: <off>
ports:
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"
index: 1
name: <alsa_card.pci-0000_00_1f.3>
driver: <module-alsa-card.c>
owner module: 7
properties:
alsa.card = "0"
alsa.card_name = "HDA Intel PCH"
alsa.long_card_name = "HDA Intel PCH at 0xa5410000 irq 154"
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 = "a348"
device.product.name = "Cannon Lake PCH cAVS"
device.form_factor = "internal"
device.string = "0"
device.description = "Audio intern"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-pci"
profiles:
input:analog-stereo: Estèreo analògic Input (priority 65, available: unknown)
output:analog-stereo: Estèreo analògic Output (priority 6500, available: unknown)
output:analog-stereo+input:analog-stereo: Analog Stereo Duplex (priority 6565, available: unknown)
output:iec958-stereo: Estèreo digital (IEC958) Output (priority 5500, available: unknown)
output:iec958-stereo+input:analog-stereo: Estèreo digital (IEC958) Output + Estèreo analògic Input (priority 5565, available: unknown)
output:iec958-ac3-surround-51: Envolvent digital 5.1 (IEC958/AC3) Output (priority 300, available: no)
output:iec958-ac3-surround-51+input:analog-stereo: Envolvent digital 5.1 (IEC958/AC3) Output + Estèreo analògic Input (priority 365, available: unknown)
output:hdmi-stereo: Digital Stereo (HDMI) Output (priority 5900, available: no)
output:hdmi-stereo+input:analog-stereo: Digital Stereo (HDMI) Output + Estèreo analògic Input (priority 5965, available: unknown)
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 + Estèreo analògic Input (priority 865, available: unknown)
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 + Estèreo analògic Input (priority 865, available: unknown)
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 + Estèreo analògic Input (priority 5765, available: unknown)
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 + Estèreo analògic Input (priority 665, available: unknown)
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 + Estèreo analògic Input (priority 665, available: unknown)
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 + Estèreo analògic Input (priority 5765, available: unknown)
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 + Estèreo analògic Input (priority 665, available: unknown)
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 + Estèreo analògic Input (priority 665, available: unknown)
output:hdmi-stereo-extra3: Digital Stereo (HDMI 4) Output (priority 5700, available: no)
output:hdmi-stereo-extra3+input:analog-stereo: Digital Stereo (HDMI 4) Output + Estèreo analògic Input (priority 5765, available: unknown)
output:hdmi-surround-extra3: Digital Surround 5.1 (HDMI 4) Output (priority 600, available: no)
output:hdmi-surround-extra3+input:analog-stereo: Digital Surround 5.1 (HDMI 4) Output + Estèreo analògic Input (priority 665, available: unknown)
output:hdmi-surround71-extra3: Digital Surround 7.1 (HDMI 4) Output (priority 600, available: no)
output:hdmi-surround71-extra3+input:analog-stereo: Digital Surround 7.1 (HDMI 4) Output + Estèreo analògic Input (priority 665, available: unknown)
output:hdmi-stereo-extra4: Digital Stereo (HDMI 5) Output (priority 5700, available: no)
output:hdmi-stereo-extra4+input:analog-stereo: Digital Stereo (HDMI 5) Output + Estèreo analògic Input (priority 5765, available: unknown)
output:hdmi-surround-extra4: Digital Surround 5.1 (HDMI 5) Output (priority 600, available: no)
output:hdmi-surround-extra4+input:analog-stereo: Digital Surround 5.1 (HDMI 5) Output + Estèreo analògic Input (priority 665, available: unknown)
output:hdmi-surround71-extra4: Digital Surround 7.1 (HDMI 5) Output (priority 600, available: no)
output:hdmi-surround71-extra4+input:analog-stereo: Digital Surround 7.1 (HDMI 5) Output + Estèreo analògic Input (priority 665, available: unknown)
off: Inactiu (priority 0, available: unknown)
active profile: <output:analog-stereo+input:analog-stereo>
sinks:
alsa_output.pci-0000_00_1f.3.analog-stereo/#35: Audio intern Estèreo analògic
sources:
alsa_output.pci-0000_00_1f.3.analog-stereo.monitor/#43: Monitor of Audio intern Estèreo analògic
alsa_input.pci-0000_00_1f.3.analog-stereo/#44: Audio intern Estèreo analògic
ports:
analog-input-internal-mic: Internal Microphone (priority 8900, latency offset 0 usec, available: unknown)
properties:
device.icon_name = "audio-input-microphone"
analog-input-mic: Microphone (priority 8700, latency offset 0 usec, available: no)
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 9000, 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"
hdmi-output-3: HDMI / DisplayPort 4 (priority 5600, latency offset 0 usec, available: no)
properties:
device.icon_name = "video-display"
hdmi-output-4: HDMI / DisplayPort 5 (priority 5500, latency offset 0 usec, available: no)
properties:
device.icon_name = "video-display"
可能なすべての構成ファイルの組み合わせを試しましたが、pacmd set-profile-cardどうすればよいかわかりません。また、alsamixer確認の結果、スピーカーのどれもミュートされていません（またはどちらもミュートされていないと仮定します）。
修正する:
$ pacmd list-sinks
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 FLAT_VOLUME 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
Estèreo
used by: 0
linked by: 0
configured latency: 0,00 ms; range is 0,50 .. 2000,00 ms
card: 1 <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 = "ALC1220 Analog"
alsa.id = "ALC1220 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 0xa5410000 irq 154"
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 = "a348"
device.product.name = "Cannon Lake PCH cAVS"
device.form_factor = "internal"
device.string = "front:0"
device.buffering.buffer_size = "352800"
device.buffering.fragment_size = "176400"
device.access_mode = "mmap+timer"
device.profile.name = "analog-stereo"
device.profile.description = "Estèreo analògic"
device.description = "Audio intern Estèreo analògic"
alsa.mixer_name = "Realtek ALC1220"
alsa.components = "HDA:10ec1220,14621275,00100101 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: 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>
アップデート2：出力alsamixer -c 0
ベストアンサー1
これはUbuntuでも知られているものと同じバグです。
https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1812693
Wikiには回避策の提案があります。
https://blog.kafaiworks.com/posts/arch-linux-audio-setup-on-msi-gp63/
/usr/share/pulseaudio/alsa-mixer/paths/analog-output-speaker.conf解決策は、次のようにファイルを編集することです。
[Element Headphone]
switch = off
volume = merge
override-map.1 = all
override-map.2 = all-left,all-right
[Element Speaker]
required-any = any
switch = mute
volume = off
その後、pulseaudioを再起動します（Debian 10ではsystemdユーザー固有のサービスとして実装されます）。
systemctl --user restart pulseaudio.service
解決策を正しく理解すると、フロントスピーカーとヘッドフォンの音量/ミュートコントロールが何らかの方法で誤って配線/クロス接続されている可能性があります。
hdajackretaskパッケージに含まれているツールalsa-tools-guiも役に立ちます。ノートブックモデルの作業カバレッジ設定が見つかった場合は、おそらくLinuxオーディオドライバ開発者に連絡してください。特定のシステムモデルに適用範囲が自動的に適用されるように結果を報告します。
MSI GL73は明らかに同じALC1220サウンドコーデックを使用し、Clevo P950と同じサウンドルーティング修正が必要です。おおよそ、次のよう/etc/modprobe.d/sound-fixup.confな名前のファイルを追加してみることができます。
options snd-hda-intel model=clevo-p950
その後、update-initramfs -uroot として実行して、初期ブートでも変更が機能していることを確認し、再起動して改善になることを確認します。 MSIがGL73と同じ方法でモデルを接続すると、問題が解決する可能性があります。それ以外の場合は、/etc/modprobe.d/sound-fixup.confファイルを削除して再度実行してupdate-initramfs -uオプションを完全に削除してください。