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#1 2016-10-12 08:34:08

frankplow
Member
Registered: 2016-10-12
Posts: 10

Audio not playing through any devices although Pulse sees them

I had a working pulseaudio/ALSA setup leading to an external USB soundcard working on my computer for several months, but after I disconnected and reconnected the USB port leading to the soundcard, audio will not play.
Both ALSA and Pulse see the soundcard, and pavucontrol shows the audio that is supposedly playing through the card, but no sound is coming out of the speakers.
I've checked to make sure it isn't muted in ALSA or Pulse to no avail and reinstalled Pulse. I've tried switching the USB to other ports on the computer and bypassing the USB soundcard and connecting the amp directly to a 3.5mm out from the computer with no luck. I did notice through pavucontrol that Pulse did not correctly register that the line out being plugged in, claiming that line out was unplugged and headphones were plugged in, the same as when no devices are connected to any 3.5mm ports.

Output of aplay -l:

 **** List of PLAYBACK Hardware Devices ****
card 0: SB [HDA ATI SB], device 0: ALC892 Analog [ALC892 Analog]
  Subdevices: 0/1
  Subdevice #0: subdevice #0
card 0: SB [HDA ATI SB], device 1: ALC892 Digital [ALC892 Digital]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0]
  Subdevices: 0/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 7: HDMI 1 [HDMI 1]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 8: HDMI 2 [HDMI 2]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 9: HDMI 3 [HDMI 3]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 2: MP3 [Sound Blaster MP3+], device 0: USB Audio [USB Audio]
  Subdevices: 0/1
  Subdevice #0: subdevice #0

Output of pacmd list-sinks:

 3 sink(s) available.
    index: 0
	name: <alsa_output.pci-0000_01_00.1.hdmi-stereo>
	driver: <module-alsa-card.c>
	flags: HARDWARE DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
	state: IDLE
	suspend cause: 
	priority: 9050
	volume: front-left: 36503 /  56% / -15.25 dB,   front-right: 36503 /  56% / -15.25 dB
	        balance 0.00
	base volume: 65536 / 100% / 0.00 dB
	volume steps: 65537
	muted: no
	current latency: 37.30 ms
	max request: 6 KiB
	max rewind: 344 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 0"
		alsa.id = "HDMI 0"
		alsa.subdevice = "0"
		alsa.subdevice_name = "subdevice #0"
		alsa.device = "3"
		alsa.card = "1"
		alsa.card_name = "HDA NVidia"
		alsa.long_card_name = "HDA NVidia at 0xfe080000 irq 46"
		alsa.driver_name = "snd_hda_intel"
		device.bus_path = "pci-0000:01:00.1"
		sysfs.path = "/devices/pci0000:00/0000:00:02.0/0000:01:00.1/sound/card1"
		device.bus = "pci"
		device.vendor.id = "10de"
		device.vendor.name = "NVIDIA Corporation"
		device.product.id = "0e0a"
		device.product.name = "GK104 HDMI Audio Controller"
		device.string = "hdmi:1"
		device.buffering.buffer_size = "352768"
		device.buffering.fragment_size = "176384"
		device.access_mode = "mmap+timer"
		device.profile.name = "hdmi-stereo"
		device.profile.description = "Digital Stereo (HDMI)"
		device.description = "GK104 HDMI Audio Controller Digital Stereo (HDMI)"
		alsa.mixer_name = "Nvidia GPU 40 HDMI/DP"
		alsa.components = "HDA:10de0040,10b01183,00100100"
		module-udev-detect.discovered = "1"
		device.icon_name = "audio-card-pci"
	ports:
		hdmi-output-0: HDMI / DisplayPort (priority 5900, latency offset 0 usec, available: no)
			properties:
				device.icon_name = "video-display"
	active port: <hdmi-output-0>
    index: 2
	name: <alsa_output.pci-0000_00_14.2.analog-stereo>
	driver: <module-alsa-card.c>
	flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
	state: IDLE
	suspend cause: 
	priority: 9959
	volume: front-left: 15917 /  24% / -36.88 dB,   front-right: 15917 /  24% / -36.88 dB
	        balance 0.00
	base volume: 65536 / 100% / 0.00 dB
	volume steps: 65537
	muted: no
	current latency: 37.13 ms
	max request: 6 KiB
	max rewind: 344 KiB
	monitor source: 3
	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: 2 <alsa_card.pci-0000_00_14.2>
	module: 8
	properties:
		alsa.resolution_bits = "16"
		device.api = "alsa"
		device.class = "sound"
		alsa.class = "generic"
		alsa.subclass = "generic-mix"
		alsa.name = "ALC892 Analog"
		alsa.id = "ALC892 Analog"
		alsa.subdevice = "0"
		alsa.subdevice_name = "subdevice #0"
		alsa.device = "0"
		alsa.card = "0"
		alsa.card_name = "HDA ATI SB"
		alsa.long_card_name = "HDA ATI SB at 0xfe500000 irq 16"
		alsa.driver_name = "snd_hda_intel"
		device.bus_path = "pci-0000:00:14.2"
		sysfs.path = "/devices/pci0000:00/0000:00:14.2/sound/card0"
		device.bus = "pci"
		device.vendor.id = "1002"
		device.vendor.name = "Advanced Micro Devices, Inc. [AMD/ATI]"
		device.product.id = "4383"
		device.product.name = "SBx00 Azalia (Intel HDA)"
		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 ALC892"
		alsa.components = "HDA:10ec0892,104384fb,00100302"
		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-lineout>
  * index: 6
	name: <alsa_output.usb-041e_USB_Audio-00.analog-stereo>
	driver: <module-alsa-card.c>
	flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
	state: RUNNING
	suspend cause: 
	priority: 9049
	volume: front-left: 35724 /  55% / -15.81 dB,   front-right: 35724 /  55% / -15.81 dB
	        balance 0.00
	base volume: 65687 / 100% / 0.06 dB
	volume steps: 65537
	muted: no
	current latency: 44.31 ms
	max request: 7 KiB
	max rewind: 344 KiB
	monitor source: 10
	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 .. 1837.50 ms
	card: 4 <alsa_card.usb-041e_USB_Audio-00>
	module: 24
	properties:
		alsa.resolution_bits = "16"
		device.api = "alsa"
		device.class = "sound"
		alsa.class = "generic"
		alsa.subclass = "generic-mix"
		alsa.name = "USB Audio"
		alsa.id = "USB Audio"
		alsa.subdevice = "0"
		alsa.subdevice_name = "subdevice #0"
		alsa.device = "0"
		alsa.card = "2"
		alsa.card_name = "Sound Blaster MP3+"
		alsa.long_card_name = "Creative Labs Sound Blaster MP3+ at usb-0000:00:12.0-3, full speed"
		alsa.driver_name = "snd_usb_audio"
		device.bus_path = "pci-0000:00:12.0-usb-0:3:1.0"
		sysfs.path = "/devices/pci0000:00/0000:00:12.0/usb8/8-3/8-3:1.0/sound/card2"
		udev.id = "usb-041e_USB_Audio-00"
		device.bus = "usb"
		device.vendor.id = "041e"
		device.vendor.name = "Creative Technology, Ltd"
		device.product.id = "3010"
		device.product.name = "SoundBlaster MP3+"
		device.serial = "041e_USB_Audio"
		device.string = "front:2"
		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 = "SoundBlaster MP3+ Analog Stereo"
		alsa.mixer_name = "USB Mixer"
		alsa.components = "USB041e:3010"
		module-udev-detect.discovered = "1"
		device.icon_name = "audio-card-usb"
	ports:
		analog-output: Analog Output (priority 9900, latency offset 0 usec, available: unknown)
			properties:
				
	active port: <analog-output>

Last edited by frankplow (2016-10-12 08:39:05)

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#2 2016-10-12 08:44:22

V1del
Forum Moderator
Registered: 2012-10-16
Posts: 21,720

Re: Audio not playing through any devices although Pulse sees them

Can you post 

pacmd list-cards
pacmd list-sink-inputs #while playing something

as well?

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#3 2016-10-12 08:48:23

frankplow
Member
Registered: 2016-10-12
Posts: 10

Re: Audio not playing through any devices although Pulse sees them

All of the snippets are taken with speaker-test running on the Soundblaster card fyi.

Output of pacmd list-cards: 

3 card(s) available.
    index: 0
	name: <alsa_card.pci-0000_01_00.1>
	driver: <module-alsa-card.c>
	owner module: 6
	properties:
		alsa.card = "1"
		alsa.card_name = "HDA NVidia"
		alsa.long_card_name = "HDA NVidia at 0xfe080000 irq 46"
		alsa.driver_name = "snd_hda_intel"
		device.bus_path = "pci-0000:01:00.1"
		sysfs.path = "/devices/pci0000:00/0000:00:02.0/0000:01:00.1/sound/card1"
		device.bus = "pci"
		device.vendor.id = "10de"
		device.vendor.name = "NVIDIA Corporation"
		device.product.id = "0e0a"
		device.product.name = "GK104 HDMI Audio Controller"
		device.string = "1"
		device.description = "GK104 HDMI Audio Controller"
		module-udev-detect.discovered = "1"
		device.icon_name = "audio-card-pci"
	profiles:
		output:hdmi-stereo: Digital Stereo (HDMI) Output (priority 5400, available: unknown)
		output:hdmi-surround: Digital Surround 5.1 (HDMI) Output (priority 300, available: unknown)
		output:hdmi-surround71: Digital Surround 7.1 (HDMI) Output (priority 300, available: unknown)
		output:hdmi-stereo-extra1: Digital Stereo (HDMI 2) Output (priority 5200, available: unknown)
		output:hdmi-surround-extra1: Digital Surround 5.1 (HDMI 2) Output (priority 100, available: unknown)
		output:hdmi-surround71-extra1: Digital Surround 7.1 (HDMI 2) Output (priority 100, available: unknown)
		output:hdmi-stereo-extra2: Digital Stereo (HDMI 3) Output (priority 5200, available: unknown)
		output:hdmi-surround-extra2: Digital Surround 5.1 (HDMI 3) Output (priority 100, available: unknown)
		output:hdmi-surround71-extra2: Digital Surround 7.1 (HDMI 3) Output (priority 100, available: unknown)
		output:hdmi-stereo-extra3: Digital Stereo (HDMI 4) Output (priority 5200, available: unknown)
		output:hdmi-surround-extra3: Digital Surround 5.1 (HDMI 4) Output (priority 100, available: unknown)
		output:hdmi-surround71-extra3: Digital Surround 7.1 (HDMI 4) Output (priority 100, available: unknown)
		off: Off (priority 0, available: unknown)
	active profile: <output:hdmi-stereo>
	sinks:
		alsa_output.pci-0000_01_00.1.hdmi-stereo/#0: GK104 HDMI Audio Controller Digital Stereo (HDMI)
	sources:
		alsa_output.pci-0000_01_00.1.hdmi-stereo.monitor/#0: Monitor of GK104 HDMI Audio Controller Digital Stereo (HDMI)
	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"
    index: 2
	name: <alsa_card.pci-0000_00_14.2>
	driver: <module-alsa-card.c>
	owner module: 8
	properties:
		alsa.card = "0"
		alsa.card_name = "HDA ATI SB"
		alsa.long_card_name = "HDA ATI SB at 0xfe500000 irq 16"
		alsa.driver_name = "snd_hda_intel"
		device.bus_path = "pci-0000:00:14.2"
		sysfs.path = "/devices/pci0000:00/0000:00:14.2/sound/card0"
		device.bus = "pci"
		device.vendor.id = "1002"
		device.vendor.name = "Advanced Micro Devices, Inc. [AMD/ATI]"
		device.product.id = "4383"
		device.product.name = "SBx00 Azalia (Intel HDA)"
		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 60, available: unknown)
		output:analog-stereo: Analog Stereo Output (priority 6000, available: unknown)
		output:analog-stereo+input:analog-stereo: Analog Stereo Duplex (priority 6060, available: unknown)
		output:analog-surround-21: Analog Surround 2.1 Output (priority 800, available: unknown)
		output:analog-surround-21+input:analog-stereo: Analog Surround 2.1 Output + Analog Stereo Input (priority 860, available: unknown)
		output:analog-surround-40: Analog Surround 4.0 Output (priority 700, available: unknown)
		output:analog-surround-40+input:analog-stereo: Analog Surround 4.0 Output + Analog Stereo Input (priority 760, available: unknown)
		output:analog-surround-41: Analog Surround 4.1 Output (priority 800, available: unknown)
		output:analog-surround-41+input:analog-stereo: Analog Surround 4.1 Output + Analog Stereo Input (priority 860, available: unknown)
		output:analog-surround-50: Analog Surround 5.0 Output (priority 700, available: unknown)
		output:analog-surround-50+input:analog-stereo: Analog Surround 5.0 Output + Analog Stereo Input (priority 760, available: unknown)
		output:analog-surround-51: Analog Surround 5.1 Output (priority 800, available: unknown)
		output:analog-surround-51+input:analog-stereo: Analog Surround 5.1 Output + Analog Stereo Input (priority 860, available: unknown)
		output:analog-surround-71: Analog Surround 7.1 Output (priority 700, available: unknown)
		output:analog-surround-71+input:analog-stereo: Analog Surround 7.1 Output + Analog Stereo Input (priority 760, 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 5560, available: unknown)
		off: Off (priority 0, available: unknown)
	active profile: <output:analog-stereo+input:analog-stereo>
	sinks:
		alsa_output.pci-0000_00_14.2.analog-stereo/#2: Built-in Audio Analog Stereo
	sources:
		alsa_output.pci-0000_00_14.2.analog-stereo.monitor/#3: Monitor of Built-in Audio Analog Stereo
		alsa_input.pci-0000_00_14.2.analog-stereo/#4: 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: no)
			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:
				
    index: 4
	name: <alsa_card.usb-041e_USB_Audio-00>
	driver: <module-alsa-card.c>
	owner module: 24
	properties:
		alsa.card = "2"
		alsa.card_name = "Sound Blaster MP3+"
		alsa.long_card_name = "Creative Labs Sound Blaster MP3+ at usb-0000:00:12.0-3, full speed"
		alsa.driver_name = "snd_usb_audio"
		device.bus_path = "pci-0000:00:12.0-usb-0:3:1.0"
		sysfs.path = "/devices/pci0000:00/0000:00:12.0/usb8/8-3/8-3:1.0/sound/card2"
		udev.id = "usb-041e_USB_Audio-00"
		device.bus = "usb"
		device.vendor.id = "041e"
		device.vendor.name = "Creative Technology, Ltd"
		device.product.id = "3010"
		device.product.name = "SoundBlaster MP3+"
		device.serial = "041e_USB_Audio"
		device.string = "2"
		device.description = "SoundBlaster MP3+"
		module-udev-detect.discovered = "1"
		device.icon_name = "audio-card-usb"
	profiles:
		input:analog-stereo: Analog Stereo Input (priority 60, available: unknown)
		input:iec958-stereo: Digital Stereo (IEC958) Input (priority 55, available: unknown)
		output:analog-stereo: Analog Stereo Output (priority 6000, available: unknown)
		output:analog-stereo+input:analog-stereo: Analog Stereo Duplex (priority 6060, available: unknown)
		output:analog-stereo+input:iec958-stereo: Analog Stereo Output + Digital Stereo (IEC958) Input (priority 6055, 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 5560, available: unknown)
		output:iec958-stereo+input:iec958-stereo: Digital Stereo Duplex (IEC958) (priority 5555, available: unknown)
		off: Off (priority 0, available: unknown)
	active profile: <output:analog-stereo+input:analog-stereo>
	sinks:
		alsa_output.usb-041e_USB_Audio-00.analog-stereo/#6: SoundBlaster MP3+ Analog Stereo
	sources:
		alsa_output.usb-041e_USB_Audio-00.analog-stereo.monitor/#10: Monitor of SoundBlaster MP3+ Analog Stereo
		alsa_input.usb-041e_USB_Audio-00.analog-stereo/#11: SoundBlaster MP3+ Analog Stereo
	ports:
		analog-input: Analog Input (priority 10000, latency offset 0 usec, available: unknown)
			properties:
				
		iec958-stereo-input: Digital Input (S/PDIF) (priority 0, latency offset 0 usec, available: unknown)
			properties:
				
		analog-output: Analog Output (priority 9900, latency offset 0 usec, available: unknown)
			properties:
				
		iec958-stereo-output: Digital Output (S/PDIF) (priority 0, latency offset 0 usec, available: unknown)
			properties:

Output of pacmd list-sink-inputs:

1 sink input(s) available.
    index: 105
	driver: <protocol-native.c>
	flags: 
	state: RUNNING
	sink: 6 <alsa_output.usb-041e_USB_Audio-00.analog-stereo>
	volume: mono: 65536 / 100% / 0.00 dB
	        balance 0.00
	muted: no
	current latency: 670.00 ms
	requested latency: 1837.50 ms
	sample spec: s16le 1ch 48000Hz
	channel map: mono
	             Mono
	resample method: copy
	module: 10
	client: 262 <ALSA plug-in [speaker-test]>
	properties:
		media.name = "ALSA Playback"
		application.name = "ALSA plug-in [speaker-test]"
		native-protocol.peer = "UNIX socket client"
		native-protocol.version = "31"
		application.process.id = "4506"
		application.process.user = "frank"
		application.process.host = "Frank-Linux"
		application.process.binary = "speaker-test"
		application.language = "en_GB.UTF-8"
		window.x11.display = ":0.0"
		application.process.machine_id = "5fda94e045bd4a0190ef96cfc15128d3"
		application.process.session_id = "c1"
		module-stream-restore.id = "sink-input-by-application-name:ALSA plug-in [speaker-test]"

I noticed with Pulse that it plays speaker-test as mono whereas it is in fact a stereo card.

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#4 2016-10-12 11:16:35

V1del
Forum Moderator
Registered: 2012-10-16
Posts: 21,720

Re: Audio not playing through any devices although Pulse sees them

That all looks correct (run speaker-test with -c2 to create a stereo speaker-test) do you get any messages in dmesg, or the journal (use 

journalctl --user-unit=pulseaudio.service

regarding your soundcard? other sanity checks, do you have some external control that might mute the soundcard on a hardware level or are you sure that your amp isn't actually turned down via hardware knob or similar, the cords are plugged in correctly?

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#5 2016-10-12 13:48:55

frankplow
Member
Registered: 2016-10-12
Posts: 10

Re: Audio not playing through any devices although Pulse sees them

No external mute for the soundcard, I've tried plugging the USB soundcard into a laptop and audio works fine from there.
Dmesg looks fine, but I got this error in journalctl:

Oct 12 09:28:10 Frank-Linux pulseaudio[627]: W: [alsa-sink-USB Audio] alsa-util.c: Got POLLNVAL from ALSA
Oct 12 09:28:10 Frank-Linux pulseaudio[627]: W: [alsa-source-USB Audio] alsa-util.c: Got POLLNVAL from ALSA
Oct 12 09:28:10 Frank-Linux pulseaudio[627]: W: [alsa-sink-USB Audio] alsa-util.c: Could not recover from POLLERR|POLLNVAL|POLLHUP with snd_pcm_prepare(): No such device
Oct 12 09:28:10 Frank-Linux pulseaudio[627]: W: [alsa-source-USB Audio] alsa-util.c: Could not recover from POLLERR|POLLNVAL|POLLHUP with snd_pcm_prepare(): No such device

Occasionally but not at boot or shutdown time. Not quite sure whats triggering the errors though.

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#6 2016-10-12 15:18:53

V1del
Forum Moderator
Registered: 2012-10-16
Posts: 21,720

Re: Audio not playing through any devices although Pulse sees them

hmm.. POLLNVAL might stem from file descriptor issues, is anything else blocking your card? 

sudo fuser -v /dev/snd/*

should help out here. Only pulseaudio opened as your user should have your cards open. Another suggestion I have is to try and rule out a kernel regression by trying the lts kernel for example. Do you use any non standard pulse configuration? You might want to post your /etc/pulse/default.pa if that is the case.

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