The title is self-explanatory: after a fresh installation of Debian 11, there is no sound at all.
The computer went to service with a burnt power supply, it was discovered that the motherboard was burnt too, and when it returned it came back with a motherboard whose chip, it seems, is not recognized by Debian, nor by Ubuntu (which I also tried to install).
When I did a fresh install of Debian 11, the result is that there is no sound at all. No beep, no noise, no buzz, nothing, absolutely nothing. In the "Settings" I can see a "Dummy Output", and nothing else. When playing .mp3 files, the volume indicators in the equalizer move, but there is no sound.
The chip is the Realtek ALC887-VD. I saw that there are several solutions available on the internet dealing with this specific hardware, but none of them worked.
Due to character limitation, I will put in the comments the commands I ran, and their results.
What can I do to get the sound in Debian working again?
$ lspci -nnk | grep -A2 Audio
00:1b.0 Audio device [0403]: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller [8086:1c20] (rev 05)
Subsystem: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller [8086:1c20]
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel
$ 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
card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 7: HDMI 1 [HDMI 1]
Subdevices: 1/1
Subdevice #0: subdevice #0
$ lshw -c sound
*-multimedia
description: Audio device
product: 6 Series/C200 Series Chipset Family High Definition Audio Controller
vendor: Intel Corporation
physical id: 1b
bus info: pci@0000:00:1b.0
version: 05
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list
configuration: driver=snd_hda_intel latency=0
resources: irq:27 memory:f7c00000-f7c03fff
$ lsmod | grep 's(ou)?nd'
Module Size Used by
snd_seq 86016 0
snd_seq_device 16384 1 snd_seq
snd_hda_codec_hdmi 73728 1
snd_hda_codec_realtek 159744 1
snd_hda_codec_generic 98304 1 snd_hda_codec_realtek
ledtrig_audio 16384 1 snd_hda_codec_generic
snd_hda_intel 57344 4
snd_intel_dspcfg 28672 1 snd_hda_intel
soundwire_intel 45056 1 snd_intel_dspcfg
soundwire_generic_allocation 16384 1 soundwire_intel
snd_soc_core 315392 1 soundwire_intel
snd_compress 32768 1 snd_soc_core
soundwire_cadence 36864 1 soundwire_intel
snd_hda_codec 172032 4 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec_realtek
snd_hda_core 110592 5 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek
snd_hwdep 16384 1 snd_hda_codec
soundwire_bus 90112 3 soundwire_intel,soundwire_generic_allocation,soundwire_cadence
snd_pcm 135168 8 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,soundwire_intel,snd_compress,snd_soc_core,snd_hda_core
snd_timer 49152 2 snd_seq,snd_pcm
snd 110592 19 snd_hda_codec_generic,snd_seq,snd_seq_device,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek,snd_timer,snd_compress,snd_soc_core,snd_pcm
soundcore 16384 1 snd
$ speaker-test -c2 -t wave -D hw:1,0
speaker-test 1.2.4
Playback device is hw:1,0
Stream parameters are 48000Hz, S16_LE, 2 channels
WAV file(s)
ALSA lib pcm_hw.c:1829:(_snd_pcm_hw_open) Invalid value for card
Playback open error: -2,Arquivo ou diretório inexistente
$ pactl stat
Currently in use: 12 blocks containing 111,0 KiB bytes total.
Allocated during whole lifetime: 675722 blocks containing 1,0 GiB bytes total.
Tamanho do cache para amostragem: 24,0 KiB
$ pulseaudio -vvvv
I: [pulseaudio] main.c: setrlimit(RLIMIT_NICE, (31, 31)) failed: Operação não permitida
I: [pulseaudio] main.c: setrlimit(RLIMIT_RTPRIO, (9, 9)) failed: Operação não permitida
D: [pulseaudio] core-rtclock.c: Timer slack is set to 50 us.
D: [pulseaudio] core-util.c: RealtimeKit worked.
I: [pulseaudio] core-util.c: Successfully gained nice level -11.
I: [pulseaudio] main.c: This is PulseAudio 14.2
D: [pulseaudio] main.c: Compilation CFLAGS: -g -O2 -ffile-prefix-map=/build/pulseaudio-eJtUKc/pulseaudio-14.2=. -fstack-protector-strong -Wformat -Werror=format-security -Wall -W -Wextra -pipe -Wno-long-long -Wno-overlength-strings -Wunsafe-loop-optimizations -Wundef -Wformat=2 -Wlogical-op -Wsign-compare -Wformat-security -Wmissing-include-dirs -Wformat-nonliteral -Wpointer-arith -Winit-self -Wdeclaration-after-statement -Wfloat-equal -Wmissing-prototypes -Wredundant-decls -Wmissing-declarations -Wmissing-noreturn -Wshadow -Wendif-labels -Wcast-align -Wstrict-aliasing -Wwrite-strings -Wno-unused-parameter -fno-common -fdiagnostics-show-option -fdiagnostics-color=auto
D: [pulseaudio] main.c: Running on host: Linux x86_64 5.10.0-11-amd64 #1 SMP Debian 5.10.92-1 (2022-01-18)
D: [pulseaudio] main.c: Found 4 CPUs.
I: [pulseaudio] main.c: Page size is 4096 bytes
D: [pulseaudio] main.c: Compiled with Valgrind support: no
D: [pulseaudio] main.c: Running in valgrind mode: no
D: [pulseaudio] main.c: Running in VM: no
D: [pulseaudio] main.c: Running from build tree: no
D: [pulseaudio] main.c: Optimized build: yes
D: [pulseaudio] main.c: FASTPATH defined, only fast path asserts disabled.
I: [pulseaudio] main.c: Machine ID is c2b85c79587e4109a5887f6571d1d2b1.
I: [pulseaudio] main.c: Using runtime directory /run/user/1000/pulse.
I: [pulseaudio] main.c: Using state directory /home/fernanda/.config/pulse.
I: [pulseaudio] main.c: Using modules directory /usr/lib/pulse-14.2/modules.
I: [pulseaudio] main.c: Running in system mode: no
E: [pulseaudio] pid.c: Daemon already running.
E: [pulseaudio] main.c: pa_pid_file_create() falhou.
$ fuser -v -u /dev/snd/*
USUÁRIO PID ACESSO COMANDO
/dev/snd/controlC0: fernanda 10038 F.... (fernanda)pulseaudio
/dev/snd/pcmC0D1p: fernanda 10038 F...m (fernanda)pulseaudio
$ alsa-info
http://alsa-project.org/db/?f=0fcdb88ddbb6177a4ba074c5d38628a493bf0de6
$ pulseaudio
E: [pulseaudio] pid.c: Daemon already running.
E: [pulseaudio] main.c: pa_pid_file_create() falhou.
$ rm ~/.config/pulse/* && reboot
No results
$ echo "options snd-hda-intel dmic_detect=0" | sudo tee -a /etc/modprobe.d/alsa-base.conf
No results
$ echo "blacklist snd_soc_skl" | sudo tee -a /etc/modprobe.d/blacklist.conf
No results
$ sudo usermod -a -G audio USERNAME
No results (yes, I've changed USERNAME for my real username before running the command)
I can get sound working by running:
$ pulseaudio --kill
$ pulseaudio --start
I made a startup script with these two commands, so I wouldn't have to remember them at each new reboot.
But that doesn't say anything about the causes of the problem. The Debian 11 installation was new, fresh. There was no reason, at least in theory, for pulseaudio not to work.
What is the cause of the problem? Does anyone have any guidance to give?
