Pavucontrol shows that audio is playing but no output heard

overclock351 · 03-09-2021, 12:53 AM

Hi linuxquestions users i have a problem that has been bothering me for a week now:
I have installed debian 10 (buster)(32-bit) on an acer aspire 1610 and i am having problems with the audio card:
essentially pavucontrol tells me that sound is playing but no sound can be heard from the sink in question (my rear green jack)
The machine mounts a SIS966 audio card and an NVidia graphics card that has also audio card features (hdmi)
I couldn't care less about the NVidia card i just want the SIS card to be working
---System Information---
OS: Debian 10 buster
Desktop manager: LXDE

Code:

pacmd list-sinks
2 sink(s) available.
    index: 0
	name: <alsa_output.pci-0000_01_00.1.hdmi-stereo-extra1>
	driver: <module-alsa-card.c>
	flags: HARDWARE DECIBEL_VOLUME LATENCY FLAT_VOLUME DYNAMIC_LATENCY
	state: IDLE
	suspend cause: (none)
	priority: 9030
	volume: front-left: 200 /   0% / -150.93 dB,   front-right: 200 /   0% / -150.93 dB
	        balance 0.00
	base volume: 65536 / 100% / 0.00 dB
	volume steps: 65537
	muted: yes
	current latency: 30.57 ms
	max request: 6 KiB
	max rewind: 6 KiB
	monitor source: 0
	sample spec: s16le 2ch 44100Hz
	channel map: front-left,front-right
	             Stereo
	used by: 0
	linked by: 1
	configured latency: 40.00 ms; range is 0.50 .. 1999.82 ms
	card: 0 <alsa_card.pci-0000_01_00.1>
	module: 6
	properties:
		alsa.resolution_bits = "16"
		device.api = "alsa"
		device.class = "sound"
		alsa.class = "generic"
		alsa.subclass = "generic-mix"
		alsa.name = "HDMI 1"
		alsa.id = "HDMI 1"
		alsa.subdevice = "0"
		alsa.subdevice_name = "subdevice #0"
		alsa.device = "7"
		alsa.card = "1"
		alsa.card_name = "HDA NVidia"
		alsa.long_card_name = "HDA NVidia at 0xfcffc000 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 = "0e0f"
		device.product.name = "GK208 HDMI/DP Audio Controller"
		device.string = "hdmi:1,1"
		device.buffering.buffer_size = "352768"
		device.buffering.fragment_size = "176384"
		device.access_mode = "mmap+timer"
		device.profile.name = "hdmi-stereo-extra1"
		device.profile.description = "Digital Stereo (HDMI 2)"
		device.description = "GK208 HDMI/DP Audio Controller Digital Stereo (HDMI 2)"
		alsa.mixer_name = "Nvidia GPU 51 HDMI/DP"
		alsa.components = "HDA:10de0051,145836f9,00100100"
		module-udev-detect.discovered = "1"
		device.icon_name = "audio-card-pci"
	ports:
		hdmi-output-1: HDMI / DisplayPort 2 (priority 5800, latency offset 0 usec, available: yes)
			properties:
				device.icon_name = "video-display"
				device.product.name = "CVTE TV
     "
	active port: <hdmi-output-1>
  * index: 3
	name: <alsa_output.pci-0000_00_0f.0.analog-stereo>
	driver: <module-alsa-card.c>
	flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY FLAT_VOLUME DYNAMIC_LATENCY
	state: RUNNING
	suspend cause: (none)
	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: yes
	current latency: 39.98 ms
	max request: 7 KiB
	max rewind: 7 KiB
	monitor source: 4
	sample spec: s16le 2ch 48000Hz
	channel map: front-left,front-right
	             Stereo
	used by: 1
	linked by: 3
	configured latency: 40.00 ms; range is 0.50 .. 1837.33 ms
	card: 1 <alsa_card.pci-0000_00_0f.0>
	module: 7
	properties:
		alsa.resolution_bits = "16"
		device.api = "alsa"
		device.class = "sound"
		alsa.class = "generic"
		alsa.subclass = "generic-mix"
		alsa.name = "ALC1200 Analog"
		alsa.id = "ALC1200 Analog"
		alsa.subdevice = "0"
		alsa.subdevice_name = "subdevice #0"
		alsa.device = "0"
		alsa.card = "0"
		alsa.card_name = "HDA SIS966"
		alsa.long_card_name = "HDA SIS966 at 0xfdff0000 irq 18"
		alsa.driver_name = "snd_hda_intel"
		device.bus_path = "pci-0000:00:0f.0"
		sysfs.path = "/devices/pci0000:00/0000:00:0f.0/sound/card0"
		device.bus = "pci"
		device.vendor.id = "1039"
		device.vendor.name = "Silicon Integrated Systems [SiS]"
		device.product.id = "7502"
		device.product.name = "Azalia Audio Controller"
		device.form_factor = "internal"
		device.string = "front:0"
		device.buffering.buffer_size = "352768"
		device.buffering.fragment_size = "176384"
		device.access_mode = "mmap+timer"
		device.profile.name = "analog-stereo"
		device.profile.description = "Analog Stereo"
		device.description = "Built-in Audio Analog Stereo"
		alsa.mixer_name = "Realtek ALC1200"
		alsa.components = "HDA:10ec0888,105b0c9e,00100101"
		module-udev-detect.discovered = "1"
		device.icon_name = "audio-card-pci"
	ports:
		analog-output-lineout: Line Out (priority 9900, latency offset 0 usec, available: no)
			properties:
				
		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>

Code:

 cat /proc/asound/cards
 0 [SIS966         ]: HDA-Intel - HDA SIS966
                      HDA SIS966 at 0xfdff0000 irq 18
 1 [NVidia         ]: HDA-Intel - HDA NVidia
                      HDA NVidia at 0xfcffc000 irq 17

Code:

 uname -r 5.10.13

things that i know and that i've tried

Things that i know:

The user is in the audio group
The behaviour is present even with sudo
The tests that i've done where done with speaker-test and mpv (none working)

Things that i've tried:

Unmuted anything unmutable in the alsamixer
Changed default soundcard systemwide
Updated kernel
Uninstalled pulseaudio (and reinstalled afterwards)
Tried same tests from various live cds (manjaro/linux mint/puppy linux fossapup)

Any guesses? thanks

frankbell · 03-09-2021, 07:02 PM

I see that that machine is a "mini-tower." Does it also have a front audio output and, if so, is it working?

Have you opened the case and checked the wiring to the rear output?

overclock351 · 03-10-2021, 05:42 AM

The card itself is detected. I think it is a module issue:
from journalctl

Code:

    Mar 07 20:14:16 debian systemd-modules-load[204]: Inserted module 'snd_hda_intel'
    Mar 07 20:14:16 debian systemd-modules-load[204]: Inserted module 'snd_intel8x0'
    Mar 07 20:14:16 debian systemd-modules-load[204]: Failed to find module 'snd-intel8x0in'

systemd blocks itself on this module (166 instances)

frankbell · 03-10-2021, 07:34 PM

Thanks for the update.

This is well outside my experience, but I a web search for "snd-intel8x0in" turned up a number of links. This one looks like a good place to start.

Sorry I can't help more.

Brains · 03-11-2021, 12:21 AM

Of the two specs pages I viewed regarding Acer Aspire 1610, both say it has REALTEK ALC655 Audio controller. In which case installing firmware-realtek may be all that is required.

Brains · 03-11-2021, 12:29 AM

Disregard the my previous message, did a search and ACL655 didn't show up in the firmware package