Trixie help wanted to get sound to work
Sound works when I boot from the live CD/memory-stick - debian-live-13.0.0-amd64-mate.iso
It does not work on the installed system.
My speakers are plugged in by a 3.5mm green audio plug (ie not HDMI).
I have compared /proc/asound/ in the live & installed environments, they look
the same (eyeball checking).
Searching journal for audio I find:
Aug 15 00:00:01 mint.phcomp.co.uk systemd[41427]: pulseaudio.service: Main process exited, code=exited, status=1/FAILURE
Aug 15 00:00:01 mint.phcomp.co.uk systemd[41427]: pulseaudio.service: Failed with result 'exit-code'.
Aug 15 00:00:01 mint.phcomp.co.uk systemd[41427]: Failed to start pulseaudio.service - Sound Service.
Aug 15 00:00:01 mint.phcomp.co.uk systemd[41427]: pulseaudio.service: Scheduled restart job, restart counter is at 1.
Aug 15 00:00:01 mint.phcomp.co.uk systemd[41427]: Starting pulseaudio.service - Sound Service...
But systemctl claims to not know about pulse audio:
# systemctl status pulseaudio
Unit pulseaudio.service could not be found.
But it is running as me:
$ ps -fp 1965
UID PID PPID C STIME TTY TIME CMD
addw 1965 1948 0 Aug14 ? 00:01:13 /usr/bin/pulseaudio --daemonize=no --log-target=journal
$ systemctl --user status pulseaudio
● pulseaudio.service - Sound Service
Loaded: loaded (/usr/lib/systemd/user/pulseaudio.service; enabled; preset: enabled)
Active: active (running) since Thu 2025-08-14 14:36:11 BST; 9h ago
Invocation: b2fe66f9baa64215af459bc2d238fbb3
TriggeredBy: ● pulseaudio.socket
Main PID: 1965 (pulseaudio)
Tasks: 2 (limit: 38364)
Memory: 8.6M (peak: 9.9M)
CPU: 53.077s
CGroup: /user.slice/user-1000.slice/user@1000.service/session.slice/pulseaudio.service
└─1965 /usr/bin/pulseaudio --daemonize=no --log-target=journal
Aug 14 14:36:11 mint.phcomp.co.uk systemd[1948]: Starting pulseaudio.service - Sound Service...
Aug 14 14:36:11 mint.phcomp.co.uk systemd[1948]: Started pulseaudio.service - Sound Service.
Any clues please, thanks in advance.
Lots of, prolly irrelevant, information below:
lspci|grep -i audio produces:
00:14.2 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 Azalia (Intel HDA) (rev 40)
01:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Oland/Hainan/Cape Verde/Pitcairn HDMI Audio [Radeon HD 7000 Series]
systemctl |grep -i sound produces:
sys-devices-pci0000:00-0000:00:02.0-0000:01:00.1-sound-card1-controlC1.device loaded active plugged /sys/devices/pci0000:00/0000:00:02.0/0000:01:00.1/sound/card1/controlC1
sys-devices-pci0000:00-0000:00:14.2-sound-card0-controlC0.device loaded active plugged /sys/devices/pci0000:00/0000:00:14.2/sound/card0/controlC0
alsa-restore.service loaded active exited Save/Restore Sound Card State
sound.target loaded active active Sound Card
>From lshw:
*-multimedia
description: Audio device
product: SBx00 Azalia (Intel HDA)
vendor: Advanced Micro Devices, Inc. [AMD/ATI]
physical id: 14.2
bus info: pci@0000:00:14.2
logical name: card0
logical name: /dev/snd/controlC0
logical name: /dev/snd/hwC0D0
logical name: /dev/snd/pcmC0D0c
logical name: /dev/snd/pcmC0D0p
logical name: /dev/snd/pcmC0D1p
logical name: /dev/snd/pcmC0D2c
version: 40
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list
configuration: driver=snd_hda_intel latency=32
resources: irq:16 memory:fdff4000-fdff7fff
lsmod | grep snd produces:
snd_hda_codec_realtek 217088 1
snd_hda_codec_hdmi 98304 1
snd_hda_codec_generic 114688 1 snd_hda_codec_realtek
snd_hda_scodec_component 20480 1 snd_hda_codec_realtek
snd_hda_intel 61440 5
snd_intel_dspcfg 40960 1 snd_hda_intel
snd_intel_sdw_acpi 16384 1 snd_intel_dspcfg
snd_hda_codec 217088 4 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec_realtek
snd_hda_core 143360 5 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek
snd_hwdep 20480 1 snd_hda_codec
snd_pcm 188416 5 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_core
snd_timer 53248 1 snd_pcm
snd 151552 17 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek,snd_timer,snd_pcm
soundcore 16384 1 snd
--
Alain Williams
Linux/GNU Consultant - Mail systems, Web sites, Networking, Programmer, IT Lecturer.
+44 (0) 787 668 0256 https://www.phcomp.co.uk/
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