[РЕШЕНО] Нет звука в колонках

Столкнулся с проблемой - не могу в arch linux настроить звук через line out (Realtek ALC1220) материнской платы - к ней подключены колонки. Если подключаю наушники в переднюю панель системного блока - звук есть. В windows 10 звук есть как в наушниках, так и в колонках.


00:1f.3 Audio device [0403]: Intel Corporation Cannon Lake PCH cAVS [8086:a348] (rev 10)
	DeviceName: Onboard - Sound
	Subsystem: Gigabyte Technology Co., Ltd Cannon Lake PCH cAVS [1458:a0cd]
	Flags: bus master, fast devsel, latency 32, IRQ 140
	Memory at 63630000 (64-bit, non-prefetchable) [size=16K]
	Memory at 63100000 (64-bit, non-prefetchable) [size=1M]
	Capabilities: <access denied>
	Kernel driver in use: snd_hda_intel
	Kernel modules: snd_hda_intel, snd_soc_skl

aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC1220 Analog [ALC1220 Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 1: ALC1220 Digital [ALC1220 Digital]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: HDMI [HDA ATI HDMI], device 3: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: HDMI [HDA ATI HDMI], device 7: HDMI 1 [HDMI 1]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: HDMI [HDA ATI HDMI], device 8: HDMI 2 [HDMI 2]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: HDMI [HDA ATI HDMI], device 9: HDMI 3 [HDMI 3]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: HDMI [HDA ATI HDMI], device 10: HDMI 4 [HDMI 4]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

amixer -c 0
Simple mixer control 'Master',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined
  Playback channels: Mono
  Limits: Playback 0 - 87
  Mono: Playback 80 [92%] [-5.25dB] [on]
Simple mixer control 'Headphone',0
  Capabilities: pvolume pswitch
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 87
  Mono:
  Front Left: Playback 87 [100%] [0.00dB] [on]
  Front Right: Playback 87 [100%] [0.00dB] [on]
Simple mixer control 'PCM',0
  Capabilities: pvolume
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 255
  Mono:
  Front Left: Playback 241 [95%] [-2.80dB]
  Front Right: Playback 241 [95%] [-2.80dB]
Simple mixer control 'Front',0
  Capabilities: pvolume pswitch
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 87
  Mono:
  Front Left: Playback 87 [100%] [0.00dB] [on]
  Front Right: Playback 87 [100%] [0.00dB] [on]
Simple mixer control 'Front Mic',0
  Capabilities: pvolume pswitch
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Mono:
  Front Left: Playback 0 [0%] [-34.50dB] [off]
  Front Right: Playback 0 [0%] [-34.50dB] [off]
Simple mixer control 'Front Mic Boost',0
  Capabilities: volume
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: 0 - 3
  Front Left: 0 [0%] [0.00dB]
  Front Right: 0 [0%] [0.00dB]
Simple mixer control 'Surround',0
  Capabilities: pvolume pswitch
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 87
  Mono:
  Front Left: Playback 0 [0%] [-65.25dB] [off]
  Front Right: Playback 0 [0%] [-65.25dB] [off]
Simple mixer control 'Center',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined
  Playback channels: Mono
  Limits: Playback 0 - 87
  Mono: Playback 0 [0%] [-65.25dB] [off]
Simple mixer control 'LFE',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined
  Playback channels: Mono
  Limits: Playback 0 - 87
  Mono: Playback 0 [0%] [-65.25dB] [off]
Simple mixer control 'Line',0
  Capabilities: pvolume pswitch
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Mono:
  Front Left: Playback 23 [74%] [0.00dB] [off]
  Front Right: Playback 23 [74%] [0.00dB] [off]
Simple mixer control 'Line Boost',0
  Capabilities: volume
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: 0 - 3
  Front Left: 0 [0%] [0.00dB]
  Front Right: 0 [0%] [0.00dB]
Simple mixer control 'IEC958',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'IEC958 Default PCM',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]
Simple mixer control 'Capture',0
  Capabilities: cvolume cswitch
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 63
  Front Left: Capture 39 [62%] [12.00dB] [on]
  Front Right: Capture 39 [62%] [12.00dB] [on]
Simple mixer control 'Capture',1
  Capabilities: cvolume cswitch
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 63
  Front Left: Capture 0 [0%] [-17.25dB] [off]
  Front Right: Capture 0 [0%] [-17.25dB] [off]
Simple mixer control 'Auto-Mute Mode',0
  Capabilities: enum
  Items: 'Disabled' 'Enabled'
  Item0: 'Enabled'
Simple mixer control 'Input Source',0
  Capabilities: cenum
  Items: 'Front Mic' 'Rear Mic' 'Line'
  Item0: 'Rear Mic'
Simple mixer control 'Input Source',1
  Capabilities: cenum
  Items: 'Front Mic' 'Rear Mic' 'Line'
  Item0: 'Front Mic'
Simple mixer control 'Loopback Mixing',0
  Capabilities: enum
  Items: 'Disabled' 'Enabled'
  Item0: 'Enabled'
Simple mixer control 'Rear Mic',0
  Capabilities: pvolume pswitch
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Mono:
  Front Left: Playback 0 [0%] [-34.50dB] [off]
  Front Right: Playback 0 [0%] [-34.50dB] [off]
Simple mixer control 'Rear Mic Boost',0
  Capabilities: volume
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: 0 - 3
  Front Left: 0 [0%] [0.00dB]
  Front Right: 0 [0%] [0.00dB]

pacmd list-cards
2 card(s) available.
    index: 0
	name: <alsa_card.pci-0000_03_00.1>
	driver: <module-alsa-card.c>
	owner module: 6
	properties:
		alsa.card = "1"
		alsa.card_name = "HDA ATI HDMI"
		alsa.long_card_name = "HDA ATI HDMI at 0x63460000 irq 141"
		alsa.driver_name = "snd_hda_intel"
		device.bus_path = "pci-0000:03:00.1"
		sysfs.path = "/devices/pci0000:00/0000:00:1b.4/0000:03:00.1/sound/card1"
		device.bus = "pci"
		device.vendor.id = "1002"
		device.vendor.name = "Advanced Micro Devices, Inc. [AMD/ATI]"
		device.product.id = "aae0"
		device.product.name = "Baffin HDMI/DP Audio [Radeon RX 550 640SP / RX 560/560X]"
		device.string = "1"
		device.description = "Baffin HDMI/DP Audio [Radeon RX 550 640SP / RX 560/560X]"
		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: unknown)
		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: yes)
			properties:
				device.icon_name = "video-display"
				device.product.name = "LG IPS FULLHD"
		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.pci-0000_00_1f.3>
	driver: <module-alsa-card.c>
	owner module: 7
	properties:
		alsa.card = "0"
		alsa.card_name = "HDA Intel PCH"
		alsa.long_card_name = "HDA Intel PCH at 0x63630000 irq 140"
		alsa.driver_name = "snd_hda_intel"
		device.bus_path = "pci-0000:00:1f.3"
		sysfs.path = "/devices/pci0000:00/0000:00:1f.3/sound/card0"
		device.bus = "pci"
		device.vendor.id = "8086"
		device.vendor.name = "Intel Corporation"
		device.product.id = "a348"
		device.product.name = "Cannon Lake PCH cAVS"
		device.form_factor = "internal"
		device.string = "0"
		device.description = "Built-in Audio"
		module-udev-detect.discovered = "1"
		device.icon_name = "audio-card-pci"
	profiles:
		input:analog-stereo: Analog Stereo Input (priority 65, available: unknown)
		output:analog-stereo: Analog Stereo Output (priority 6500, available: unknown)
		output:analog-stereo+input:analog-stereo: Analog Stereo Duplex (priority 6565, available: unknown)
		output:analog-surround-21: Analog Surround 2.1 Output (priority 1300, available: no)
		output:analog-surround-21+input:analog-stereo: Analog Surround 2.1 Output + Analog Stereo Input (priority 1365, available: unknown)
		output:analog-surround-40: Analog Surround 4.0 Output (priority 1200, available: no)
		output:analog-surround-40+input:analog-stereo: Analog Surround 4.0 Output + Analog Stereo Input (priority 1265, available: unknown)
		output:analog-surround-41: Analog Surround 4.1 Output (priority 1300, available: no)
		output:analog-surround-41+input:analog-stereo: Analog Surround 4.1 Output + Analog Stereo Input (priority 1365, available: unknown)
		output:analog-surround-50: Analog Surround 5.0 Output (priority 1200, available: no)
		output:analog-surround-50+input:analog-stereo: Analog Surround 5.0 Output + Analog Stereo Input (priority 1265, available: unknown)
		output:analog-surround-51: Analog Surround 5.1 Output (priority 1300, available: no)
		output:analog-surround-51+input:analog-stereo: Analog Surround 5.1 Output + Analog Stereo Input (priority 1365, available: unknown)
		output:iec958-stereo: Digital Stereo (IEC958) Output (priority 5500, available: unknown)
		output:iec958-stereo+input:analog-stereo: Digital Stereo (IEC958) Output + Analog Stereo Input (priority 5565, available: unknown)
		off: Off (priority 0, available: unknown)
	active profile: <output:analog-stereo>
	sinks:
		alsa_output.pci-0000_00_1f.3.analog-stereo/#44: Built-in Audio Analog Stereo
	sources:
		alsa_output.pci-0000_00_1f.3.analog-stereo.monitor/#53: Monitor of Built-in Audio Analog Stereo
	ports:
		analog-input-front-mic: Front Microphone (priority 8500, latency offset 0 usec, available: no)
			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 9900, latency offset 0 usec, available: no)
			properties:

		analog-output-headphones: Headphones (priority 9000, latency offset 0 usec, available: yes)
			properties:
				device.icon_name = "audio-headphones"
		iec958-stereo-output: Digital Output (S/PDIF) (priority 0, latency offset 0 usec, available: unknown)
			properties:

pacmd list-sinks
1 sink(s) available.
  * index: 44
	name: <alsa_output.pci-0000_00_1f.3.analog-stereo>
	driver: <module-alsa-card.c>
	flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
	state: SUSPENDED
	suspend cause: IDLE
	priority: 9039
	volume: front-left: 53577 /  82% / -5.25 dB,   front-right: 53577 /  82% / -5.25 dB
	        balance 0.00
	base volume: 65536 / 100% / 0.00 dB
	volume steps: 65537
	muted: no
	current latency: 0.00 ms
	max request: 0 KiB
	max rewind: 0 KiB
	monitor source: 53
	sample spec: s16le 2ch 48000Hz
	channel map: front-left,front-right
	             Stereo
	used by: 0
	linked by: 1
	configured latency: 0.00 ms; range is 0.50 .. 1837.50 ms
	card: 1 <alsa_card.pci-0000_00_1f.3>
	module: 7
	properties:
		alsa.resolution_bits = "16"
		device.api = "alsa"
		device.class = "sound"
		alsa.class = "generic"
		alsa.subclass = "generic-mix"
		alsa.name = "ALC1220 Analog"
		alsa.id = "ALC1220 Analog"
		alsa.subdevice = "0"
		alsa.subdevice_name = "subdevice #0"
		alsa.device = "0"
		alsa.card = "0"
		alsa.card_name = "HDA Intel PCH"
		alsa.long_card_name = "HDA Intel PCH at 0x63630000 irq 140"
		alsa.driver_name = "snd_hda_intel"
		device.bus_path = "pci-0000:00:1f.3"
		sysfs.path = "/devices/pci0000:00/0000:00:1f.3/sound/card0"
		device.bus = "pci"
		device.vendor.id = "8086"
		device.vendor.name = "Intel Corporation"
		device.product.id = "a348"
		device.product.name = "Cannon Lake PCH cAVS"
		device.form_factor = "internal"
		device.string = "front:0"
		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"
		alsa.mixer_name = "Realtek ALC1220"
		alsa.components = "HDA:10ec1220,1458a0cd,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-headphones: Headphones (priority 9000, latency offset 0 usec, available: yes)
			properties:
				device.icon_name = "audio-headphones"
	active port: <analog-output-headphones>

pacmd list-sink-inputs
1 sink input(s) available.
    index: 6
	driver: <protocol-native.c>
	flags: START_CORKED FIX_RATE
	state: RUNNING
	sink: 44 <alsa_output.pci-0000_00_1f.3.analog-stereo>
	volume: front-left: 65799 / 100% / 0.10 dB,   front-right: 65799 / 100% / 0.10 dB
	        balance 0.00
	muted: no
	current latency: 461.79 ms
	requested latency: 40.00 ms
	sample spec: float32le 2ch 48000Hz
	channel map: front-left,front-right
	             Stereo
	resample method: copy
	module: 10
	client: 14 <VLC media player (LibVLC 3.0.6)>
	properties:
		media.role = "video"
		media.name = "audio stream"
		application.name = "VLC media player (LibVLC 3.0.6)"
		native-protocol.peer = "UNIX socket client"
		native-protocol.version = "32"
		application.id = "org.VideoLAN.VLC"
		application.version = "3.0.6"
		application.icon_name = "vlc"
		application.language = "en_US.UTF-8"
		application.process.id = "2371"
		application.process.user = "user"
		application.process.host = "pc"
		application.process.binary = "vlc"
		window.x11.display = ":0"
		application.process.machine_id = "b29878b44fea450f93a44b7eaf976f5f"
		application.process.session_id = "2"
		module-stream-restore.id = "sink-input-by-media-role:video"

Установил pulseaudio volume control и пробывал различные конфигурации профиля устройства - безуспешно.

Надеюсь на вашу помощь.
$ pactl set-sink-port alsa_output.pci-0000_00_1f.3.analog-stereo analog-output-lineout
Ошибки в тексте-неповторимый стиль автора©
В pulseaudio volume control во вкладке Output Devices вижу что для Build-in Audio Analog Stereo - уже выбран порт - Line Out (plugged in).

Пробывал через команду выше - звук не появился.

pacmd list | grep "active port"
	active port: <analog-output-lineout>
	active port: <analog-input-rear-mic>
$ pacmd list-sources
Ошибки в тексте-неповторимый стиль автора©
$ pacmd list-sources
2 source(s) available.
    index: 53
	name: <alsa_output.pci-0000_00_1f.3.analog-stereo.monitor>
	driver: <module-alsa-card.c>
	flags: DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
	state: IDLE
	suspend cause: (none)
	priority: 1030
	volume: front-left: 63568 /  97% / -0.79 dB,   front-right: 63568 /  97% / -0.79 dB
	        balance 0.00
	base volume: 65536 / 100% / 0.00 dB
	volume steps: 65537
	muted: no
	current latency: 0.00 ms
	max rewind: 7 KiB
	sample spec: s16le 2ch 48000Hz
	channel map: front-left,front-right
	             Stereo
	used by: 0
	linked by: 2
	configured latency: 40.00 ms; range is 0.50 .. 1837.50 ms
	monitor_of: 44
	card: 1 <alsa_card.pci-0000_00_1f.3>
	module: 7
	properties:
		device.description = "Monitor of Built-in Audio Analog Stereo"
		device.class = "monitor"
		alsa.card = "0"
		alsa.card_name = "HDA Intel PCH"
		alsa.long_card_name = "HDA Intel PCH at 0x63630000 irq 140"
		alsa.driver_name = "snd_hda_intel"
		device.bus_path = "pci-0000:00:1f.3"
		sysfs.path = "/devices/pci0000:00/0000:00:1f.3/sound/card0"
		device.bus = "pci"
		device.vendor.id = "8086"
		device.vendor.name = "Intel Corporation"
		device.product.id = "a348"
		device.product.name = "Cannon Lake PCH cAVS"
		device.form_factor = "internal"
		device.string = "0"
		module-udev-detect.discovered = "1"
		device.icon_name = "audio-card-pci"
  * index: 54
	name: <alsa_input.pci-0000_00_1f.3.analog-stereo>
	driver: <module-alsa-card.c>
	flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
	state: SUSPENDED
	suspend cause: IDLE
	priority: 9039
	volume: front-left: 10387 /  16% / -48.00 dB,   front-right: 10387 /  16% / -48.00 dB
	        balance 0.00
	base volume: 6554 /  10% / -60.00 dB
	volume steps: 65537
	muted: no
	current latency: 0.00 ms
	max rewind: 0 KiB
	sample spec: s16le 2ch 44100Hz
	channel map: front-left,front-right
	             Stereo
	used by: 0
	linked by: 1
	configured latency: 0.00 ms; range is 0.50 .. 2000.00 ms
	card: 1 <alsa_card.pci-0000_00_1f.3>
	module: 7
	properties:
		alsa.resolution_bits = "16"
		device.api = "alsa"
		device.class = "sound"
		alsa.class = "generic"
		alsa.subclass = "generic-mix"
		alsa.name = "ALC1220 Analog"
		alsa.id = "ALC1220 Analog"
		alsa.subdevice = "0"
		alsa.subdevice_name = "subdevice #0"
		alsa.device = "0"
		alsa.card = "0"
		alsa.card_name = "HDA Intel PCH"
		alsa.long_card_name = "HDA Intel PCH at 0x63630000 irq 140"
		alsa.driver_name = "snd_hda_intel"
		device.bus_path = "pci-0000:00:1f.3"
		sysfs.path = "/devices/pci0000:00/0000:00:1f.3/sound/card0"
		device.bus = "pci"
		device.vendor.id = "8086"
		device.vendor.name = "Intel Corporation"
		device.product.id = "a348"
		device.product.name = "Cannon Lake PCH cAVS"
		device.form_factor = "internal"
		device.string = "front:0"
		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"
		alsa.mixer_name = "Realtek ALC1220"
		alsa.components = "HDA:10ec1220,1458a0cd,00100101"
		module-udev-detect.discovered = "1"
		device.icon_name = "audio-card-pci"
	ports:
		analog-input-front-mic: Front Microphone (priority 8500, latency offset 0 usec, available: no)
			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:

	active port: <analog-input-rear-mic>
Посмотри есть ли в выводе dmesg | grep snd какие то ошибки, может быть связанные с кодеками.
Если ошибки будут, то возможно нужен patch ALC1220 - подробности не помню, но с месяц назад встречалось похожее .... если найду у себя, скину ссылку.
Ошибки не исчезают с опытом - они просто умнеют
vasek
Посмотри есть ли в выводе dmesg | grep snd
дело конечно полезное, но у него вроде как есть звук, а значит какие-то ошибки на уровне модулей мало вероятны.
тут приоритеты, перенаправления, уровни громкости, тумблер на колонках, вилка в розетке...
Ошибки в тексте-неповторимый стиль автора©
indeviral
но у него вроде как есть звук
Не внимательно читал - да, в наушниках есть - виноват
Плюс к этому посмотрел исходники - патч наложен
Ошибки не исчезают с опытом - они просто умнеют
vOROn200
Simple mixer control 'IEC958 Default PCM',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [on]
А выключить не пробовали? На некоторых карточках цифра выводится на line out и при включенной аналогового выхода нет
Ошибок вроде нету:
[artem@arch-pc ~]$ dmesg | grep snd
[    8.345914] snd_hda_intel 0000:03:00.1: Handle vga_switcheroo audio client
[    8.345915] snd_hda_intel 0000:03:00.1: Force to non-snoop mode
[    8.372170] snd_hda_codec_realtek hdaudioC0D0: autoconfig for ALC1220: line_outs=3 (0x1b/0x15/0x16/0x0/0x0) type:line
[    8.372171] snd_hda_codec_realtek hdaudioC0D0:    speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
[    8.372172] snd_hda_codec_realtek hdaudioC0D0:    hp_outs=1 (0x14/0x0/0x0/0x0/0x0)
[    8.372173] snd_hda_codec_realtek hdaudioC0D0:    mono: mono_out=0x0
[    8.372174] snd_hda_codec_realtek hdaudioC0D0:    dig-out=0x1e/0x0
[    8.372174] snd_hda_codec_realtek hdaudioC0D0:    inputs:
[    8.372175] snd_hda_codec_realtek hdaudioC0D0:      Front Mic=0x19
[    8.372176] snd_hda_codec_realtek hdaudioC0D0:      Rear Mic=0x18
[    8.372177] snd_hda_codec_realtek hdaudioC0D0:      Line=0x1a
 
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