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Hi,
I've previously had a working audio setup, but now am just getting quiet noise through my outputs.
In pavucontrol I can see that apps are successfully outputting to the output devices.
I can see the level bar moving for both headphone and Line out outputs when I select between them.
Muting the headphone output mutes the quiet background noise and reenabling it restarts the background noise. The level control has no effect on the noise.
pacmd list-sinks
1 sink(s) available.
* index: 0
name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
state: RUNNING
suspend cause: (none)
priority: 9039
volume: front-left: 65863 / 100% / 0.13 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: 39.91 ms
max request: 6 KiB
max rewind: 6 KiB
monitor source: 1
sample spec: s16le 2ch 44100Hz
channel map: front-left,front-right
Stereo
used by: 1
linked by: 3
configured latency: 40.00 ms; range is 0.50 .. 2000.00 ms
card: 2 <alsa_card.pci-0000_00_1b.0>
module: 8
properties:
alsa.resolution_bits = "16"
device.api = "alsa"
device.class = "sound"
alsa.class = "generic"
alsa.subclass = "generic-mix"
alsa.name = "ALC887-VD Analog"
alsa.id = "ALC887-VD Analog"
alsa.subdevice = "0"
alsa.subdevice_name = "subdevice #0"
alsa.device = "0"
alsa.card = "1"
alsa.card_name = "HDA Intel PCH"
alsa.long_card_name = "HDA Intel PCH at 0xf7c10000 irq 48"
alsa.driver_name = "snd_hda_intel"
device.bus_path = "pci-0000:00:1b.0"
sysfs.path = "/devices/pci0000:00/0000:00:1b.0/sound/card1"
device.bus = "pci"
device.vendor.id = "8086"
device.vendor.name = "Intel Corporation"
device.product.id = "8c20"
device.product.name = "8 Series/C220 Series Chipset High Definition Audio Controller"
device.form_factor = "internal"
device.string = "front:1"
device.buffering.buffer_size = "352800"
device.buffering.fragment_size = "176400"
device.access_mode = "mmap+timer"
device.profile.name = "analog-stereo"
device.profile.description = "Analog Stereo"
device.description = "Built-in Audio Analog Stereo"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-pci"
ports:
analog-output-lineout: Line Out (priority 9000, latency offset 0 usec, available: yes)
properties:
analog-output-headphones: Headphones (priority 9900, latency offset 0 usec, available: unknown)
properties:
device.icon_name = "audio-headphones"
active port: <analog-output-headphones>
cat /proc/asound/cards
0 [HDMI ]: HDA-Intel - HDA Intel HDMI
HDA Intel HDMI at 0xf7c14000 irq 50
1 [PCH ]: HDA-Intel - HDA Intel PCH
HDA Intel PCH at 0xf7c10000 irq 48
2 [HDMI_1 ]: HDA-Intel - HDA ATI HDMI
HDA ATI HDMI at 0xf7840000 irq 49
3 [Camera ]: USB-Audio - USB 2.0 Camera
Sonix Technology Co., Ltd. USB 2.0 Camera at usb-0000:00:14.0-1, high speed
EDIT - add
pacmd list-cards
4 card(s) available.
index: 0
name: <alsa_card.pci-0000_00_03.0>
driver: <module-alsa-card.c>
owner module: 6
properties:
alsa.card = "0"
alsa.card_name = "HDA Intel HDMI"
alsa.long_card_name = "HDA Intel HDMI at 0xf7c14000 irq 50"
alsa.driver_name = "snd_hda_intel"
device.bus_path = "pci-0000:00:03.0"
sysfs.path = "/devices/pci0000:00/0000:00:03.0/sound/card0"
device.bus = "pci"
device.vendor.id = "8086"
device.vendor.name = "Intel Corporation"
device.product.id = "0c0c"
device.product.name = "Xeon E3-1200 v3/4th Gen Core Processor HD Audio Controller"
device.form_factor = "internal"
device.string = "0"
device.description = "Built-in Audio"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-pci"
profiles:
output:hdmi-stereo: Digital Stereo (HDMI) Output (priority 5900, available: no)
output:hdmi-surround: Digital Surround 5.1 (HDMI) Output (priority 800, available: no)
output:hdmi-surround71: Digital Surround 7.1 (HDMI) Output (priority 800, available: no)
output:hdmi-stereo-extra1: Digital Stereo (HDMI 2) Output (priority 5700, available: no)
output:hdmi-surround-extra1: Digital Surround 5.1 (HDMI 2) Output (priority 600, available: no)
output:hdmi-surround71-extra1: Digital Surround 7.1 (HDMI 2) Output (priority 600, available: no)
output:hdmi-stereo-extra2: Digital Stereo (HDMI 3) Output (priority 5700, available: no)
output:hdmi-surround-extra2: Digital Surround 5.1 (HDMI 3) Output (priority 600, available: no)
output:hdmi-surround71-extra2: Digital Surround 7.1 (HDMI 3) Output (priority 600, available: no)
output:hdmi-stereo-extra3: Digital Stereo (HDMI 4) Output (priority 5700, available: no)
output:hdmi-surround-extra3: Digital Surround 5.1 (HDMI 4) Output (priority 600, available: no)
output:hdmi-surround71-extra3: Digital Surround 7.1 (HDMI 4) Output (priority 600, available: no)
output:hdmi-stereo-extra4: Digital Stereo (HDMI 5) Output (priority 5700, available: no)
output:hdmi-surround-extra4: Digital Surround 5.1 (HDMI 5) Output (priority 600, available: no)
output:hdmi-surround71-extra4: Digital Surround 7.1 (HDMI 5) Output (priority 600, available: no)
off: Off (priority 0, available: unknown)
active profile: <off>
ports:
hdmi-output-0: HDMI / DisplayPort (priority 5900, latency offset 0 usec, available: no)
properties:
device.icon_name = "video-display"
hdmi-output-1: HDMI / DisplayPort 2 (priority 5800, latency offset 0 usec, available: no)
properties:
device.icon_name = "video-display"
hdmi-output-2: HDMI / DisplayPort 3 (priority 5700, latency offset 0 usec, available: no)
properties:
device.icon_name = "video-display"
hdmi-output-3: HDMI / DisplayPort 4 (priority 5600, latency offset 0 usec, available: no)
properties:
device.icon_name = "video-display"
hdmi-output-4: HDMI / DisplayPort 5 (priority 5500, latency offset 0 usec, available: no)
properties:
device.icon_name = "video-display"
index: 1
name: <alsa_card.usb-Sonix_Technology_Co.__Ltd._USB_2.0_Camera-02>
driver: <module-alsa-card.c>
owner module: 7
properties:
alsa.card = "3"
alsa.card_name = "USB 2.0 Camera"
alsa.long_card_name = "Sonix Technology Co., Ltd. USB 2.0 Camera at usb-0000:00:14.0-1, high speed"
alsa.driver_name = "snd_usb_audio"
device.bus_path = "pci-0000:00:14.0-usb-0:1:1.2"
sysfs.path = "/devices/pci0000:00/0000:00:14.0/usb3/3-1/3-1:1.2/sound/card3"
udev.id = "usb-Sonix_Technology_Co.__Ltd._USB_2.0_Camera-02"
device.bus = "usb"
device.vendor.id = "0c45"
device.vendor.name = "Microdia"
device.product.id = "6340"
device.product.name = "Camera"
device.serial = "Sonix_Technology_Co.__Ltd._USB_2.0_Camera"
device.form_factor = "webcam"
device.string = "3"
device.description = "Camera"
module-udev-detect.discovered = "1"
device.icon_name = "camera-web-usb"
profiles:
input:mono-fallback: Mono Input (priority 1, available: unknown)
off: Off (priority 0, available: unknown)
active profile: <input:mono-fallback>
sources:
alsa_input.usb-Sonix_Technology_Co.__Ltd._USB_2.0_Camera-02.mono-fallback/#0: Camera Mono
ports:
analog-input-mic: Microphone (priority 8700, latency offset 0 usec, available: unknown)
properties:
device.icon_name = "audio-input-microphone"
index: 2
name: <alsa_card.pci-0000_00_1b.0>
driver: <module-alsa-card.c>
owner module: 8
properties:
alsa.card = "1"
alsa.card_name = "HDA Intel PCH"
alsa.long_card_name = "HDA Intel PCH at 0xf7c10000 irq 48"
alsa.driver_name = "snd_hda_intel"
device.bus_path = "pci-0000:00:1b.0"
sysfs.path = "/devices/pci0000:00/0000:00:1b.0/sound/card1"
device.bus = "pci"
device.vendor.id = "8086"
device.vendor.name = "Intel Corporation"
device.product.id = "8c20"
device.product.name = "8 Series/C220 Series Chipset High Definition Audio Controller"
device.form_factor = "internal"
device.string = "1"
device.description = "Built-in Audio"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-pci"
profiles:
input:analog-stereo: Analog Stereo Input (priority 32833, available: unknown)
output:analog-stereo: Analog Stereo Output (priority 39268, available: unknown)
output:analog-stereo+input:analog-stereo: Analog Stereo Duplex (priority 39333, available: unknown)
off: Off (priority 0, available: unknown)
active profile: <output:analog-stereo+input:analog-stereo>
sinks:
alsa_output.pci-0000_00_1b.0.analog-stereo/#0: Built-in Audio Analog Stereo
sources:
alsa_output.pci-0000_00_1b.0.analog-stereo.monitor/#1: Monitor of Built-in Audio Analog Stereo
alsa_input.pci-0000_00_1b.0.analog-stereo/#2: Built-in Audio Analog Stereo
ports:
analog-input-front-mic: Front Microphone (priority 8500, latency offset 0 usec, available: yes)
properties:
device.icon_name = "audio-input-microphone"
analog-input-rear-mic: Rear Microphone (priority 8200, latency offset 0 usec, available: yes)
properties:
device.icon_name = "audio-input-microphone"
analog-input-linein: Line In (priority 8100, latency offset 0 usec, available: no)
properties:
analog-output-lineout: Line Out (priority 9000, latency offset 0 usec, available: yes)
properties:
analog-output-headphones: Headphones (priority 9900, latency offset 0 usec, available: unknown)
properties:
device.icon_name = "audio-headphones"
index: 3
name: <alsa_card.pci-0000_05_00.1>
driver: <module-alsa-card.c>
owner module: 9
properties:
alsa.card = "2"
alsa.card_name = "HDA ATI HDMI"
alsa.long_card_name = "HDA ATI HDMI at 0xf7840000 irq 49"
alsa.driver_name = "snd_hda_intel"
device.bus_path = "pci-0000:05:00.1"
sysfs.path = "/devices/pci0000:00/0000:00:1c.5/0000:05:00.1/sound/card2"
device.bus = "pci"
device.vendor.id = "1002"
device.vendor.name = "Advanced Micro Devices, Inc. [AMD/ATI]"
device.product.id = "aa68"
device.product.name = "Cedar HDMI Audio [Radeon HD 5400/6300/7300 Series]"
device.string = "2"
device.description = "Cedar HDMI Audio [Radeon HD 5400/6300/7300 Series]"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-pci"
profiles:
output:hdmi-stereo: Digital Stereo (HDMI) Output (priority 5900, available: no)
output:hdmi-surround: Digital Surround 5.1 (HDMI) Output (priority 800, available: no)
output:hdmi-surround71: Digital Surround 7.1 (HDMI) Output (priority 800, available: no)
off: Off (priority 0, available: unknown)
active profile: <off>
ports:
hdmi-output-0: HDMI / DisplayPort (priority 5900, latency offset 0 usec, available: no)
properties:
device.icon_name = "video-display"
I have absolutely no idea where to go with this - can anyone help?
Thanks!
Last edited by ja203 (2021-12-17 23:45:31)
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Rule out a HW issue, do you have headphones/different speakers to test? Did you double check and ensure they are properly plugged in? Does
speaker-test -Dhw:1 -c2
work? If it doesn't the problem is lower level, either the alsamixer -c1 mixers are off or weird, or you have a kernel or alsa-lib regression.
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Thanks for your help
speaker-test 1.2.6
Playback device is hw:1
Stream parameters are 48000Hz, S16_LE, 2 channels
Using 16 octaves of pink noise
Rate set to 48000Hz (requested 48000Hz)
Buffer size range from 64 to 1048576
Period size range from 32 to 524288
Using max buffer size 1048576
Periods = 4
was set period_size = 262144
was set buffer_size = 1048576
0 - Front Left
1 - Front Right
Time per period = 10.931360
0 - Front Left
1 - Front Right
Time per period = 10.936031
0 - Front Left
1 - Front Right
Time per period = 10.941600
0 - Front Left
1 - Front Right
etc etc until ^c
alsamixer -c1 did show some muted channels including master and headphone but unmuting these hasn't done anything.
You mention kernel or alsa-lib... any further digging I could do into this?
Thanks!
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Did you hear noise from that speaker-test or was it silent? If it was silent then pulse is irrelevant and you either have a HW issue or something lower level.
if speaker-test did not give you output you can try the LTS kernel or so or downgrading alsa-lib,alsa-ucm-conf,alsa-plugins to 1.2.5 or find out under which kernel it last worked. And again because it happens often enough, if your speakers/headphone has some external volume knob make sure that isn't muted.
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Thanks I'll try some downgrades.
Speaker-test silent, so suggests low level issue then. Headphones fine, 2 pairs both working.
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