Ho notato un problema durante l'estate dopo l'aggiornamento da Debian 9 stabile a Debian 10 test: PulseAudio non ha più riconosciuto i miei dispositivi audio Intel HDA. Al momento sono stato in grado di passare all'audio del mio monitor collegato tramite nVidia HDMI, quindi ho evitato il problema sperando che un futuro aggiornamento lo avrebbe risolto. Non l'hanno fatto. Avanzamento veloce di alcuni mesi e ho riorganizzato il mio spazio di lavoro e ora ho bisogno di far funzionare nuovamente Intel HDA.
Ecco cosa ho visto finora ...
Test Debian 10
Il kernel lo vede:
# 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 lo vede:
# 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
il test dell'altoparlante riproduce l'audio normalmente come fa aplay -D predefinito: CARD = PCH /usr/share/sounds/alsa/Front_Left.wav
Tuttavia PulseAudio non vede affatto il 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 vado in Impostazioni audio, tutto ciò che vedo è il dispositivo Dummy Output. (I dispositivi nVidia non sono più elencati qui perché nel riordinare le cose, sto usando un monitor diverso senza audio, quindi non ci sono dispositivi audio HDMI attualmente collegati.)
Ho provato a cancellare la configurazione di PulseAudio pensando che potrei avere qualche legacy legft in giro tramite:
rm ~/.pulse/* ~/.config/pulse/*
Debian 9 Stable
Ho un'altra partizione su questa macchina che esegue ancora Debian 9 stabile, dove Intel HDA funziona con PulseAudio e sembrano esserci differenze nei driver ALSA rispetto a Debian 10, quindi di seguito sono le differenze che ho notato ...
# 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, naturalmente, Debian 9 vede Intel HDA in 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>
Quindi la domanda è ovviamente: come posso ripristinare l'audio Intel HDA in PulseAudio con Debian 10? È qualcosa che posso risolvere dal punto di vista della configurazione o è un problema del driver che deve essere risolto dai manutentori ALSA o PulseAudio?