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#1 2023-03-18 05:53:04

gniuxiao
Member
Registered: 2023-03-18
Posts: 4

No audio driver (only Dummy Output), LG gram laptop 2023

As title, I also tried Ubuntu 22 and Debian 11, no distro can load correct audio driver. I've asked laptop seller about the audio output device, it's from ESTEC, all hardware info are listed below:

Laptop: LG gram 17Z90R-G.CD7BC
Audio Output Device Provider: ESTEC
Audio Output Device Model: P46-781144 and P46-774234

Looks like Linux couldn't detect this audio output device:

$ lspci | grep -i audio
00:1f.3 Multimedia audio controller: Intel Corporation Device 51ca (rev 01)
$ sudo dmesg | grep -E 'error|warn|audio'
[    3.127946] ACPI Error: Aborting method \_SB.PC00.LPCB.LGEC.SEN1._TMP due to previous error (AE_NOT_EXIST) (20221020/psparse-529)
[    3.136259] ACPI Error: Aborting method \_SB.PC00.LPCB.LGEC.SEN1._TMP due to previous error (AE_NOT_EXIST) (20221020/psparse-529)
[    3.140350] ACPI Error: Aborting method \_SB.PC00.LPCB.LGEC.SEN2._TMP due to previous error (AE_NOT_EXIST) (20221020/psparse-529)
[    3.144821] ACPI Error: Aborting method \_SB.PC00.LPCB.LGEC.SEN2._TMP due to previous error (AE_NOT_EXIST) (20221020/psparse-529)
[    3.276092] platform regulatory.0: Direct firmware load for regulatory.db failed with error -2
[    4.018686] sof-audio-pci-intel-tgl 0000:00:1f.3: DSP detected with PCI class/subclass/prog-if info 0x040100
[    4.018895] sof-audio-pci-intel-tgl 0000:00:1f.3: Digital mics found on Skylake+ platform, using SOF driver
[    4.018903] sof-audio-pci-intel-tgl 0000:00:1f.3: enabling device (0000 -> 0002)
[    4.019192] sof-audio-pci-intel-tgl 0000:00:1f.3: DSP detected with PCI class/subclass/prog-if 0x040100
[    5.239769] sof-audio-pci-intel-tgl 0000:00:1f.3: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915])
[    5.304412] sof-audio-pci-intel-tgl 0000:00:1f.3: use msi interrupt mode
[    5.330454] sof-audio-pci-intel-tgl 0000:00:1f.3: hda codecs found, mask 5
[    5.330458] sof-audio-pci-intel-tgl 0000:00:1f.3: using HDA machine driver skl_hda_dsp_generic now
[    5.330460] sof-audio-pci-intel-tgl 0000:00:1f.3: DMICs detected in NHLT tables: 2
[    5.330480] sof-audio-pci-intel-tgl 0000:00:1f.3: Direct firmware load for intel/sof/sof-rpl.ri failed with error -2
[    5.330482] sof-audio-pci-intel-tgl 0000:00:1f.3: error: sof firmware file is missing, you might need to
[    5.330539] sof-audio-pci-intel-tgl 0000:00:1f.3:        download it from https://github.com/thesofproject/sof-bin/
[    5.330599] sof-audio-pci-intel-tgl 0000:00:1f.3: error: failed to load DSP firmware -2
[    5.330943] sof-audio-pci-intel-tgl 0000:00:1f.3: error: sof_probe_work failed err: -2

Open desktop Settings/Sound or alsa/pulse command line controller, there is "Dummy Output" only, the kernel is 6.2.6-arch1-1
I have no idea what to do next, any suggestions? Thanks.

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#2 2023-03-18 10:23:30

gniuxiao
Member
Registered: 2023-03-18
Posts: 4

Re: No audio driver (only Dummy Output), LG gram laptop 2023

Installed Windows, then found more info:

Audio Adapter: Intel Raptor Lake-P/U/H PCH - cAVS (Audio, Voice, Speech)
Audio Controller Hardware ID: PCI\VEN\8086&DEV_51CA&SUBSYS_048A1854&REV_01

High Definition Audio Codec: RealTek ALC298
Audio Codec Hardware ID: INTELAUDIO\FUNC_01&VEN_10EC&DEV_0298&SUBSYS_1854048A&REV_1001

audio.png

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#3 2023-03-18 11:31:41

V1del
Forum Moderator
Registered: 2012-10-16
Posts: 18,728

Re: No audio driver (only Dummy Output), LG gram laptop 2023

Install sof-firmware and reboot

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#4 2023-03-18 13:08:03

gniuxiao
Member
Registered: 2023-03-18
Posts: 4

Re: No audio driver (only Dummy Output), LG gram laptop 2023

V1del wrote:

Install sof-firmware and reboot

Many thanks!

That's a good one, the situation looks improved, now I have "Speaker - sof-hda-dsp", but still no sound.

Now we can get

~ inxi -A
Audio:
  Device-1: Intel driver: sof-audio-pci-intel-tgl
  Sound API: ALSA v: k6.2.6-arch1-1 running: yes
  Sound Server-1: PipeWire v: 0.3.67 running: yes

Everything looking good, except no sound.

Last edited by gniuxiao (2023-03-18 13:18:40)

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#5 2023-03-18 13:47:01

V1del
Forum Moderator
Registered: 2012-10-16
Posts: 18,728

Re: No audio driver (only Dummy Output), LG gram laptop 2023

What's your 

aplay -lL
pactl list cards
pactl list sinks

now?

Online

#6 2023-03-19 00:49:57

gniuxiao
Member
Registered: 2023-03-18
Posts: 4

Re: No audio driver (only Dummy Output), LG gram laptop 2023

aplay -lL

null
    Discard all samples (playback) or generate zero samples (capture)
pipewire
    PipeWire Sound Server
default
    Default ALSA Output (currently PipeWire Media Server)
sysdefault:CARD=sofhdadsp
    sof-hda-dsp, 
    Default Audio Device
**** List of PLAYBACK Hardware Devices ****
card 0: sofhdadsp [sof-hda-dsp], device 0: HDA Analog (*) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: sofhdadsp [sof-hda-dsp], device 3: HDMI1 (*) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: sofhdadsp [sof-hda-dsp], device 4: HDMI2 (*) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: sofhdadsp [sof-hda-dsp], device 5: HDMI3 (*) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: sofhdadsp [sof-hda-dsp], device 31: HDA Analog Deep Buffer (*) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0

pactl list cards

Card #176
	Name: alsa_card.pci-0000_00_1f.3-platform-skl_hda_dsp_generic.3
	Driver: alsa
	Owner Module: n/a
	Properties:
		api.acp.auto-port = "false"
		api.acp.auto-profile = "false"
		api.alsa.card = "0"
		api.alsa.card.longname = "LGElectronics-17Z90R_G.CD7BC-0.1-17Z90R"
		api.alsa.card.name = "sof-hda-dsp"
		api.alsa.path = "hw:0"
		api.alsa.use-acp = "true"
		api.dbus.ReserveDevice1 = "Audio0"
		device.api = "alsa"
		device.bus = "pci"
		device.bus_path = "pci-0000:00:1f.3-platform-skl_hda_dsp_generic"
		device.description = "sof-hda-dsp"
		device.enum.api = "udev"
		device.icon_name = "audio-card-analog-pci"
		device.name = "alsa_card.pci-0000_00_1f.3-platform-skl_hda_dsp_generic.3"
		device.nick = "sof-hda-dsp"
		device.plugged.usec = "5483055"
		device.product.id = "0x51ca"
		device.subsystem = "sound"
		sysfs.path = "/devices/pci0000:00/0000:00:1f.3/skl_hda_dsp_generic/sound/card0"
		device.vendor.id = "0x8086"
		device.vendor.name = "Intel Corporation"
		media.class = "Audio/Device"
		factory.id = "14"
		client.id = "33"
		object.id = "78"
		object.serial = "176"
		object.path = "alsa:pcm:0"
		alsa.card = "0"
		alsa.card_name = "sof-hda-dsp"
		alsa.long_card_name = "LGElectronics-17Z90R_G.CD7BC-0.1-17Z90R"
		alsa.driver_name = "snd_soc_skl_hda_dsp"
		device.string = "0"
	Profiles:
		off: Off (sinks: 0, sources: 0, priority: 0, available: yes)
		HiFi: Play HiFi quality Music (sinks: 4, sources: 2, priority: 8000, available: yes)
		pro-audio: Pro Audio (sinks: 5, sources: 3, priority: 1, available: yes)
	Active Profile: HiFi
	Ports:
		[Out] HDMI3: HDMI / DisplayPort 3 Output (type: HDMI, priority: 700, latency offset: 0 usec, availability group: HDMI/DP,pcm=5, not available)
			Properties:
				port.type = "hdmi"
				port.availability-group = "HDMI/DP,pcm=5"
				card.profile.port = "0"
			Part of profile(s): HiFi
		[Out] HDMI2: HDMI / DisplayPort 2 Output (type: HDMI, priority: 600, latency offset: 0 usec, availability group: HDMI/DP,pcm=4, not available)
			Properties:
				port.type = "hdmi"
				port.availability-group = "HDMI/DP,pcm=4"
				card.profile.port = "1"
			Part of profile(s): HiFi
		[Out] HDMI1: HDMI / DisplayPort 1 Output (type: HDMI, priority: 500, latency offset: 0 usec, availability group: HDMI/DP,pcm=3, not available)
			Properties:
				port.type = "hdmi"
				port.availability-group = "HDMI/DP,pcm=3"
				card.profile.port = "2"
			Part of profile(s): HiFi
		[Out] Speaker: Speaker (type: Speaker, priority: 100, latency offset: 0 usec, availability unknown)
			Properties:
				port.type = "speaker"
				card.profile.port = "3"
			Part of profile(s): HiFi
		[Out] Headphones: Headphones (type: Headphones, priority: 200, latency offset: 0 usec, availability group: Headphone, not available)
			Properties:
				port.type = "headphones"
				port.availability-group = "Headphone"
				card.profile.port = "4"
			Part of profile(s): HiFi
		[In] Mic2: Headphones Stereo Microphone (type: Mic, priority: 200, latency offset: 0 usec, availability group: Mic, not available)
			Properties:
				port.type = "mic"
				port.availability-group = "Mic"
				card.profile.port = "5"
			Part of profile(s): HiFi
		[In] Mic1: Digital Microphone (type: Mic, priority: 100, latency offset: 0 usec, availability unknown)
			Properties:
				port.type = "mic"
				card.profile.port = "6"
			Part of profile(s): HiFi

pactl list sinks

Sink #181
	State: SUSPENDED
	Name: alsa_output.pci-0000_00_1f.3-platform-skl_hda_dsp_generic.3.HiFi__hw_sofhdadsp_5__sink
	Description: sof-hda-dsp HDMI / DisplayPort 3 Output
	Driver: PipeWire
	Sample Specification: s24-32le 2ch 48000Hz
	Channel Map: front-left,front-right
	Owner Module: 4294967295
	Mute: no
	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
	Monitor Source: alsa_output.pci-0000_00_1f.3-platform-skl_hda_dsp_generic.3.HiFi__hw_sofhdadsp_5__sink.monitor
	Latency: 0 usec, configured 0 usec
	Flags: HARDWARE DECIBEL_VOLUME LATENCY 
	Properties:
		alsa.card = "0"
		alsa.card_name = "sof-hda-dsp"
		alsa.class = "generic"
		alsa.device = "5"
		alsa.driver_name = "snd_soc_skl_hda_dsp"
		alsa.id = "HDMI3 (*)"
		alsa.long_card_name = "LGElectronics-17Z90R_G.CD7BC-0.1-17Z90R"
		alsa.mixer_device = "_ucm0003.hw:sofhdadsp"
		alsa.name = ""
		alsa.resolution_bits = "16"
		alsa.subclass = "generic-mix"
		alsa.subdevice = "0"
		alsa.subdevice_name = "subdevice #0"
		api.alsa.card.longname = "LGElectronics-17Z90R_G.CD7BC-0.1-17Z90R"
		api.alsa.card.name = "sof-hda-dsp"
		api.alsa.open.ucm = "true"
		api.alsa.path = "hw:sofhdadsp,5"
		api.alsa.pcm.card = "0"
		api.alsa.pcm.stream = "playback"
		audio.channels = "2"
		audio.position = "FL,FR"
		card.profile.device = "0"
		device.api = "alsa"
		device.class = "sound"
		device.id = "78"
		device.profile.description = "HDMI / DisplayPort 3 Output"
		device.profile.name = "HiFi: hw:sofhdadsp,5: sink"
		device.routes = "1"
		factory.name = "api.alsa.pcm.sink"
		media.class = "Audio/Sink"
		device.description = "sof-hda-dsp"
		node.name = "alsa_output.pci-0000_00_1f.3-platform-skl_hda_dsp_generic.3.HiFi__hw_sofhdadsp_5__sink"
		node.nick = "HDMI / DisplayPort 3 Output"
		node.pause-on-idle = "false"
		object.path = "alsa:pcm:0:hw:sofhdadsp,5:playback"
		priority.driver = "664"
		priority.session = "664"
		factory.id = "18"
		clock.quantum-limit = "8192"
		client.id = "33"
		node.driver = "true"
		factory.mode = "merge"
		audio.adapt.follower = ""
		library.name = "audioconvert/libspa-audioconvert"
		object.id = "64"
		object.serial = "181"
		api.acp.auto-port = "false"
		api.acp.auto-profile = "false"
		api.alsa.card = "0"
		api.alsa.use-acp = "true"
		api.dbus.ReserveDevice1 = "Audio0"
		device.bus = "pci"
		device.bus_path = "pci-0000:00:1f.3-platform-skl_hda_dsp_generic"
		device.enum.api = "udev"
		device.icon_name = "audio-card-analog-pci"
		device.name = "alsa_card.pci-0000_00_1f.3-platform-skl_hda_dsp_generic.3"
		device.nick = "sof-hda-dsp"
		device.plugged.usec = "5483055"
		device.product.id = "0x51ca"
		device.subsystem = "sound"
		sysfs.path = "/devices/pci0000:00/0000:00:1f.3/skl_hda_dsp_generic/sound/card0"
		device.vendor.id = "0x8086"
		device.vendor.name = "Intel Corporation"
		device.string = "0"
	Ports:
		[Out] HDMI3: HDMI / DisplayPort 3 Output (type: HDMI, priority: 700, availability group: HDMI/DP,pcm=5, not available)
	Active Port: [Out] HDMI3
	Formats:
		pcm

Sink #182
	State: SUSPENDED
	Name: alsa_output.pci-0000_00_1f.3-platform-skl_hda_dsp_generic.3.HiFi__hw_sofhdadsp_4__sink
	Description: sof-hda-dsp HDMI / DisplayPort 2 Output
	Driver: PipeWire
	Sample Specification: s24-32le 2ch 48000Hz
	Channel Map: front-left,front-right
	Owner Module: 4294967295
	Mute: no
	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
	Monitor Source: alsa_output.pci-0000_00_1f.3-platform-skl_hda_dsp_generic.3.HiFi__hw_sofhdadsp_4__sink.monitor
	Latency: 0 usec, configured 0 usec
	Flags: HARDWARE DECIBEL_VOLUME LATENCY 
	Properties:
		alsa.card = "0"
		alsa.card_name = "sof-hda-dsp"
		alsa.class = "generic"
		alsa.device = "4"
		alsa.driver_name = "snd_soc_skl_hda_dsp"
		alsa.id = "HDMI2 (*)"
		alsa.long_card_name = "LGElectronics-17Z90R_G.CD7BC-0.1-17Z90R"
		alsa.mixer_device = "_ucm0003.hw:sofhdadsp"
		alsa.name = ""
		alsa.resolution_bits = "16"
		alsa.subclass = "generic-mix"
		alsa.subdevice = "0"
		alsa.subdevice_name = "subdevice #0"
		api.alsa.card.longname = "LGElectronics-17Z90R_G.CD7BC-0.1-17Z90R"
		api.alsa.card.name = "sof-hda-dsp"
		api.alsa.open.ucm = "true"
		api.alsa.path = "hw:sofhdadsp,4"
		api.alsa.pcm.card = "0"
		api.alsa.pcm.stream = "playback"
		audio.channels = "2"
		audio.position = "FL,FR"
		card.profile.device = "1"
		device.api = "alsa"
		device.class = "sound"
		device.id = "78"
		device.profile.description = "HDMI / DisplayPort 2 Output"
		device.profile.name = "HiFi: hw:sofhdadsp,4: sink"
		device.routes = "1"
		factory.name = "api.alsa.pcm.sink"
		media.class = "Audio/Sink"
		device.description = "sof-hda-dsp"
		node.name = "alsa_output.pci-0000_00_1f.3-platform-skl_hda_dsp_generic.3.HiFi__hw_sofhdadsp_4__sink"
		node.nick = "HDMI / DisplayPort 2 Output"
		node.pause-on-idle = "false"
		object.path = "alsa:pcm:0:hw:sofhdadsp,4:playback"
		priority.driver = "680"
		priority.session = "680"
		factory.id = "18"
		clock.quantum-limit = "8192"
		client.id = "33"
		node.driver = "true"
		factory.mode = "merge"
		audio.adapt.follower = ""
		library.name = "audioconvert/libspa-audioconvert"
		object.id = "75"
		object.serial = "182"
		api.acp.auto-port = "false"
		api.acp.auto-profile = "false"
		api.alsa.card = "0"
		api.alsa.use-acp = "true"
		api.dbus.ReserveDevice1 = "Audio0"
		device.bus = "pci"
		device.bus_path = "pci-0000:00:1f.3-platform-skl_hda_dsp_generic"
		device.enum.api = "udev"
		device.icon_name = "audio-card-analog-pci"
		device.name = "alsa_card.pci-0000_00_1f.3-platform-skl_hda_dsp_generic.3"
		device.nick = "sof-hda-dsp"
		device.plugged.usec = "5483055"
		device.product.id = "0x51ca"
		device.subsystem = "sound"
		sysfs.path = "/devices/pci0000:00/0000:00:1f.3/skl_hda_dsp_generic/sound/card0"
		device.vendor.id = "0x8086"
		device.vendor.name = "Intel Corporation"
		device.string = "0"
	Ports:
		[Out] HDMI2: HDMI / DisplayPort 2 Output (type: HDMI, priority: 600, availability group: HDMI/DP,pcm=4, not available)
	Active Port: [Out] HDMI2
	Formats:
		pcm

Sink #183
	State: SUSPENDED
	Name: alsa_output.pci-0000_00_1f.3-platform-skl_hda_dsp_generic.3.HiFi__hw_sofhdadsp_3__sink
	Description: sof-hda-dsp HDMI / DisplayPort 1 Output
	Driver: PipeWire
	Sample Specification: s24-32le 2ch 48000Hz
	Channel Map: front-left,front-right
	Owner Module: 4294967295
	Mute: no
	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
	Monitor Source: alsa_output.pci-0000_00_1f.3-platform-skl_hda_dsp_generic.3.HiFi__hw_sofhdadsp_3__sink.monitor
	Latency: 0 usec, configured 0 usec
	Flags: HARDWARE DECIBEL_VOLUME LATENCY 
	Properties:
		alsa.card = "0"
		alsa.card_name = "sof-hda-dsp"
		alsa.class = "generic"
		alsa.device = "3"
		alsa.driver_name = "snd_soc_skl_hda_dsp"
		alsa.id = "HDMI1 (*)"
		alsa.long_card_name = "LGElectronics-17Z90R_G.CD7BC-0.1-17Z90R"
		alsa.mixer_device = "_ucm0003.hw:sofhdadsp"
		alsa.name = ""
		alsa.resolution_bits = "16"
		alsa.subclass = "generic-mix"
		alsa.subdevice = "0"
		alsa.subdevice_name = "subdevice #0"
		api.alsa.card.longname = "LGElectronics-17Z90R_G.CD7BC-0.1-17Z90R"
		api.alsa.card.name = "sof-hda-dsp"
		api.alsa.open.ucm = "true"
		api.alsa.path = "hw:sofhdadsp,3"
		api.alsa.pcm.card = "0"
		api.alsa.pcm.stream = "playback"
		audio.channels = "2"
		audio.position = "FL,FR"
		card.profile.device = "2"
		device.api = "alsa"
		device.class = "sound"
		device.id = "78"
		device.profile.description = "HDMI / DisplayPort 1 Output"
		device.profile.name = "HiFi: hw:sofhdadsp,3: sink"
		device.routes = "1"
		factory.name = "api.alsa.pcm.sink"
		media.class = "Audio/Sink"
		device.description = "sof-hda-dsp"
		node.name = "alsa_output.pci-0000_00_1f.3-platform-skl_hda_dsp_generic.3.HiFi__hw_sofhdadsp_3__sink"
		node.nick = "HDMI / DisplayPort 1 Output"
		node.pause-on-idle = "false"
		object.path = "alsa:pcm:0:hw:sofhdadsp,3:playback"
		priority.driver = "696"
		priority.session = "696"
		factory.id = "18"
		clock.quantum-limit = "8192"
		client.id = "33"
		node.driver = "true"
		factory.mode = "merge"
		audio.adapt.follower = ""
		library.name = "audioconvert/libspa-audioconvert"
		object.id = "73"
		object.serial = "183"
		api.acp.auto-port = "false"
		api.acp.auto-profile = "false"
		api.alsa.card = "0"
		api.alsa.use-acp = "true"
		api.dbus.ReserveDevice1 = "Audio0"
		device.bus = "pci"
		device.bus_path = "pci-0000:00:1f.3-platform-skl_hda_dsp_generic"
		device.enum.api = "udev"
		device.icon_name = "audio-card-analog-pci"
		device.name = "alsa_card.pci-0000_00_1f.3-platform-skl_hda_dsp_generic.3"
		device.nick = "sof-hda-dsp"
		device.plugged.usec = "5483055"
		device.product.id = "0x51ca"
		device.subsystem = "sound"
		sysfs.path = "/devices/pci0000:00/0000:00:1f.3/skl_hda_dsp_generic/sound/card0"
		device.vendor.id = "0x8086"
		device.vendor.name = "Intel Corporation"
		device.string = "0"
	Ports:
		[Out] HDMI1: HDMI / DisplayPort 1 Output (type: HDMI, priority: 500, availability group: HDMI/DP,pcm=3, not available)
	Active Port: [Out] HDMI1
	Formats:
		pcm

Sink #184
	State: SUSPENDED
	Name: alsa_output.pci-0000_00_1f.3-platform-skl_hda_dsp_generic.3.HiFi__hw_sofhdadsp__sink
	Description: sof-hda-dsp Speaker + Headphones
	Driver: PipeWire
	Sample Specification: s32le 2ch 48000Hz
	Channel Map: front-left,front-right
	Owner Module: 4294967295
	Mute: no
	Volume: front-left: 26214 /  40% / -23.88 dB,   front-right: 26214 /  40% / -23.88 dB
	        balance 0.00
	Base Volume: 65536 / 100% / 0.00 dB
	Monitor Source: alsa_output.pci-0000_00_1f.3-platform-skl_hda_dsp_generic.3.HiFi__hw_sofhdadsp__sink.monitor
	Latency: 0 usec, configured 0 usec
	Flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY 
	Properties:
		alsa.card = "0"
		alsa.card_name = "sof-hda-dsp"
		alsa.class = "generic"
		alsa.device = "0"
		alsa.driver_name = "snd_soc_skl_hda_dsp"
		alsa.id = "HDA Analog (*)"
		alsa.long_card_name = "LGElectronics-17Z90R_G.CD7BC-0.1-17Z90R"
		alsa.mixer_device = "_ucm0003.hw:sofhdadsp"
		alsa.name = ""
		alsa.resolution_bits = "16"
		alsa.subclass = "generic-mix"
		alsa.subdevice = "0"
		alsa.subdevice_name = "subdevice #0"
		api.alsa.card.longname = "LGElectronics-17Z90R_G.CD7BC-0.1-17Z90R"
		api.alsa.card.name = "sof-hda-dsp"
		api.alsa.open.ucm = "true"
		api.alsa.path = "hw:sofhdadsp"
		api.alsa.pcm.card = "0"
		api.alsa.pcm.stream = "playback"
		audio.channels = "2"
		audio.position = "FL,FR"
		card.profile.device = "3"
		device.api = "alsa"
		device.class = "sound"
		device.id = "78"
		device.profile.description = "Speaker + Headphones"
		device.profile.name = "HiFi: hw:sofhdadsp: sink"
		device.routes = "2"
		factory.name = "api.alsa.pcm.sink"
		media.class = "Audio/Sink"
		device.description = "sof-hda-dsp"
		node.name = "alsa_output.pci-0000_00_1f.3-platform-skl_hda_dsp_generic.3.HiFi__hw_sofhdadsp__sink"
		node.nick = "Speaker + Headphones"
		node.pause-on-idle = "false"
		object.path = "alsa:pcm:0:hw:sofhdadsp:playback"
		priority.driver = "1000"
		priority.session = "1000"
		factory.id = "18"
		clock.quantum-limit = "8192"
		client.id = "33"
		node.driver = "true"
		factory.mode = "merge"
		audio.adapt.follower = ""
		library.name = "audioconvert/libspa-audioconvert"
		object.id = "62"
		object.serial = "184"
		node.max-latency = "4096/48000"
		api.alsa.period-size = "1024"
		api.alsa.period-num = "8"
		api.alsa.headroom = "0"
		api.acp.auto-port = "false"
		api.acp.auto-profile = "false"
		api.alsa.card = "0"
		api.alsa.use-acp = "true"
		api.dbus.ReserveDevice1 = "Audio0"
		device.bus = "pci"
		device.bus_path = "pci-0000:00:1f.3-platform-skl_hda_dsp_generic"
		device.enum.api = "udev"
		device.icon_name = "audio-card-analog-pci"
		device.name = "alsa_card.pci-0000_00_1f.3-platform-skl_hda_dsp_generic.3"
		device.nick = "sof-hda-dsp"
		device.plugged.usec = "5483055"
		device.product.id = "0x51ca"
		device.subsystem = "sound"
		sysfs.path = "/devices/pci0000:00/0000:00:1f.3/skl_hda_dsp_generic/sound/card0"
		device.vendor.id = "0x8086"
		device.vendor.name = "Intel Corporation"
		device.string = "0"
	Ports:
		[Out] Speaker: Speaker (type: Speaker, priority: 100, availability unknown)
		[Out] Headphones: Headphones (type: Headphones, priority: 200, availability group: Headphone, not available)
	Active Port: [Out] Speaker
	Formats:
		pcm

Last edited by gniuxiao (2023-03-19 00:55:59)

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