Eu notei um problema durante o verão após a atualização do Debian 9 estável para o teste Debian 10: o PulseAudio não mais reconhecia meus dispositivos de áudio Intel HDA. Na época, eu era capaz de mudar para o áudio do meu monitor conectado via nVidia HDMI, então eu contornei o problema na esperança de que uma atualização futura pudesse consertá-lo. Eles não têm. Avanço rápido de alguns meses e eu reorganizei meu espaço de trabalho e agora preciso fazer com que o Intel HDA funcione novamente.
Aqui está o que eu vi até agora ...
Debian 10 Testing
O kernel vê isso:
# dmesg | grep HDA
[ +0.005509] input: HDA Intel PCH Front Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input17
[ +0.000073] input: HDA Intel PCH Rear Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input18
[ +0.000057] input: HDA Intel PCH Line as /devices/pci0000:00/0000:00:1b.0/sound/card0/input19
[ +0.000054] input: HDA Intel PCH Line Out Front as /devices/pci0000:00/0000:00:1b.0/sound/card0/input20
[ +0.000052] input: HDA Intel PCH Line Out Surround as /devices/pci0000:00/0000:00:1b.0/sound/card0/input21
[ +0.000051] input: HDA Intel PCH Line Out CLFE as /devices/pci0000:00/0000:00:1b.0/sound/card0/input22
[ +0.000053] input: HDA Intel PCH Line Out Side as /devices/pci0000:00/0000:00:1b.0/sound/card0/input23
[ +0.000058] input: HDA Intel PCH Front Headphone as /devices/pci0000:00/0000:00:1b.0/sound/card0/input24
[followed by NVidia HDMI audio devices that are recognized]
# lspci -nnk | grep -A2 Audio
00:1b.0 Audio device [0403]: Intel Corporation 7 Series/C216 Chipset Family High Definition Audio Controller [8086:1e20] (rev 04)
Subsystem: Gigabyte Technology Co., Ltd 7 Series/C216 Chipset Family High Definition Audio Controller [1458:a002]
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel
[followed by NVidia HDMI audio devices that are recognized]
ALSA vê:
# aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: Generic Analog [Generic Analog]
Subdevices: 0/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 1: Generic Digital [Generic Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
[followed by NVidia HDMI audio devices that are recognized]
# aplay -L | grep PCH
default:CARD=PCH
HDA Intel PCH, Generic Analog
sysdefault:CARD=PCH
HDA Intel PCH, Generic Analog
front:CARD=PCH,DEV=0
HDA Intel PCH, Generic Analog
surround21:CARD=PCH,DEV=0
HDA Intel PCH, Generic Analog
surround40:CARD=PCH,DEV=0
HDA Intel PCH, Generic Analog
surround41:CARD=PCH,DEV=0
HDA Intel PCH, Generic Analog
surround50:CARD=PCH,DEV=0
HDA Intel PCH, Generic Analog
surround51:CARD=PCH,DEV=0
HDA Intel PCH, Generic Analog
surround71:CARD=PCH,DEV=0
HDA Intel PCH, Generic Analog
iec958:CARD=PCH,DEV=0
HDA Intel PCH, Generic Digital
dmix:CARD=PCH,DEV=0
HDA Intel PCH, Generic Analog
dmix:CARD=PCH,DEV=1
HDA Intel PCH, Generic Digital
dsnoop:CARD=PCH,DEV=0
HDA Intel PCH, Generic Analog
dsnoop:CARD=PCH,DEV=1
HDA Intel PCH, Generic Digital
hw:CARD=PCH,DEV=0
HDA Intel PCH, Generic Analog
hw:CARD=PCH,DEV=1
HDA Intel PCH, Generic Digital
plughw:CARD=PCH,DEV=0
HDA Intel PCH, Generic Analog
plughw:CARD=PCH,DEV=1
HDA Intel PCH, Generic Digital
speaker-test reproduz áudio normalmente como aplay -D padrão: CARD = PCH /usr/share/sounds/alsa/Front_Left.wav
No entanto, o PulseAudio não vê o dispositivo:
$ pacmd list-sinks
1 sink(s) available.
* index: 0
name: <auto_null>
driver: <module-null-sink.c>
flags: DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
state: SUSPENDED
suspend cause: IDLE
priority: 1000
volume: front-left: 55705 / 85% / -4.24 dB, front-right: 55705 / 85% / -4.24 dB
balance 0.00
base volume: 65536 / 100% / 0.00 dB
volume steps: 65537
muted: no
current latency: 0.00 ms
max request: 344 KiB
max rewind: 344 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 .. 2000.00 ms
module: 16
properties:
device.description = "Dummy Output"
device.class = "abstract"
device.icon_name = "audio-card"
Quando vou para Configurações de som, tudo o que vejo é o dispositivo de saída fictício. (Os dispositivos da nVidia não estão mais listados aqui porque, ao reorganizar as coisas, estou usando um monitor diferente sem áudio, por isso não há nenhum dispositivo de áudio HDMI conectado atualmente.)
Eu tentei limpar a configuração do PulseAudio pensando que poderia ter algum legado perdido por meio de:
rm ~/.pulse/* ~/.config/pulse/*
Debian 9 Stable
Eu tenho outra partição nesta máquina que ainda está rodando Debian 9 stable, onde o Intel HDA trabalha com o PulseAudio, e parece haver diferenças nos drivers ALSA vs. Debian 10, então abaixo estão as diferenças que eu notei .. .
# aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC887-VD Analog [ALC887-VD Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 1: ALC887-VD Digital [ALC887-VD Digital]
Subdevices: 0/1
Subdevice #0: subdevice #0
# aplay -L | grep PCH
sysdefault:CARD=PCH
HDA Intel PCH, ALC887-VD Analog
front:CARD=PCH,DEV=0
HDA Intel PCH, ALC887-VD Analog
surround21:CARD=PCH,DEV=0
HDA Intel PCH, ALC887-VD Analog
surround40:CARD=PCH,DEV=0
HDA Intel PCH, ALC887-VD Analog
surround41:CARD=PCH,DEV=0
HDA Intel PCH, ALC887-VD Analog
surround50:CARD=PCH,DEV=0
HDA Intel PCH, ALC887-VD Analog
surround51:CARD=PCH,DEV=0
HDA Intel PCH, ALC887-VD Analog
surround71:CARD=PCH,DEV=0
HDA Intel PCH, ALC887-VD Analog
iec958:CARD=PCH,DEV=0
HDA Intel PCH, ALC887-VD Digital
dmix:CARD=PCH,DEV=0
HDA Intel PCH, ALC887-VD Analog
dmix:CARD=PCH,DEV=1
HDA Intel PCH, ALC887-VD Digital
dsnoop:CARD=PCH,DEV=0
HDA Intel PCH, ALC887-VD Analog
dsnoop:CARD=PCH,DEV=1
HDA Intel PCH, ALC887-VD Digital
hw:CARD=PCH,DEV=0
HDA Intel PCH, ALC887-VD Analog
hw:CARD=PCH,DEV=1
HDA Intel PCH, ALC887-VD Digital
plughw:CARD=PCH,DEV=0
HDA Intel PCH, ALC887-VD Analog
plughw:CARD=PCH,DEV=1
HDA Intel PCH, ALC887-VD Digital
E, é claro, o Debian 9 vê o Intel HDA no PulseAudio:
$ pacmd list-sinks
1 sink(s) available.
* index: 2
name: <alsa_output.pci-0000_00_1b.0.iec958-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL DECIBEL_VOLUME LATENCY FLAT_VOLUME DYNAMIC_LATENCY
state: RUNNING
suspend cause:
priority: 9958
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: 24.26 ms
max request: 4 KiB
max rewind: 344 KiB
monitor source: 3
sample spec: s16le 2ch 48000Hz
channel map: front-left,front-right
Stereo
used by: 1
linked by: 1
configured latency: 25.00 ms; range is 0.50 .. 1837.50 ms
card: 1 <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 = "ALC887-VD Digital"
alsa.id = "ALC887-VD Digital"
alsa.subdevice = "0"
alsa.subdevice_name = "subdevice #0"
alsa.device = "1"
alsa.card = "0"
alsa.card_name = "HDA Intel PCH"
alsa.long_card_name = "HDA Intel PCH at 0xf5130000 irq 30"
alsa.driver_name = "snd_hda_intel"
device.bus_path = "pci-0000:00:1b.0"
sysfs.path = "/devices/pci0000:00/0000:00:1b.0/sound/card0"
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 = "iec958:0"
device.buffering.buffer_size = "352800"
device.buffering.fragment_size = "176400"
device.access_mode = "mmap+timer"
device.profile.name = "iec958-stereo"
device.profile.description = "Digital Stereo (IEC958)"
device.description = "Built-in Audio Digital Stereo (IEC958)"
alsa.mixer_name = "Realtek ALC887-VD"
alsa.components = "HDA:10ec0887,1458a002,00100302"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-pci"
ports:
iec958-stereo-output: Digital Output (S/PDIF) (priority 0, latency offset 0 usec, available: unknown)
properties:
active port: <iec958-stereo-output>
Portanto, a pergunta é óbvia: como faço para que o áudio Intel HDA funcione novamente no PulseAudio com o Debian 10? Isso é algo que eu posso corrigir do ponto de vista da configuração ou isso é um problema de driver que precisa ser corrigido pelos mantenedores do ALSA ou do PulseAudio?