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#1 2022-06-19 12:48:26

wichtel16
Member
Registered: 2015-01-27
Posts: 3

ALSA: HDMI Audio stops working after PulseAudio started/stopped

Hi,

I have been diagnosing an issue with HDMI Audio Out for a few weeks and I am stuck.
I would appreciate some help and/or pointers to other boards for more ALSA/PulseAudio questions (I am not even sure right now whether the issue is caused by ALSA or PA).

In short:

  • After booting, before PulseAudio has started, sound works when going through ALSA directly (through aplay -D plughw:0,3).

  • When starting PulseAudio (in the course of an X11 session, but the same happens when running PA in system-wide mode), HDMI output is visible in PA but no sound can be heard when playing.

  • When stopping PulseAudio again, and going through ALSA directly again (aplay as above), no sound is heard.

  • At this point, only a reboot helps.

I suspect that PA is re-configuring something within ALSA but my knowledge of ALSA is too limited to go on from here.
Eventually, I would like to get PA to work, of course, but it seems like PA is changing/breaking something in ALSA so I feel like I am tackling the root course by finding out why ALSA stops working.

In the last weeks, I tried several things to no avail. I am trying my best to reconstruct what I tried, please let me know if I can provide more info:

  • Hardware: Intel NUC NUC11PAHi5

  • HDA Intel PCH (this seems to be my sound card?)

  • ALC256 (this is the "codec"? not sure what that means though... the semantics of "codec" in ALSA do not seem to match my understanding of that word)

  • The HDMI port in question is connected to a Philips Smart TV (for testing, I am using both the built-in sound of the TV as well as a connected sound bar, both either work or don't work at the same time, so it's not the sound bar that's the issue)

  • When using plughw:0,3 as a device with aplay, I hear sound (as long as I haven't started PA yet), so that is the device I need (for some reason I have 11 HDMI ports visible by ALSA, so I had to track that down)

The commands I use to test audio through alsa are the following, and they all either work or not work at the same time:

  • speaker-test -D hw:0,3 -c 2

  • aplay -D plughw:0,3 /root/Noise.wav (that wave file is coming from /usr/share/sounds/alsa)

My alsa-info before starting PulseAudio, when audio works: http://alsa-project.org/db/?f=f264e3040 … 9bb4a9f49f
My alsa-info after starting PulseAudio, when audio stops working: http://alsa-project.org/db/?f=588cbee7e … 4380619f8f

The files seem to have no significant difference (except for timestamps and an audio log about the PA unit being started in between).

Any help would be appreciated. I am very happy to provide more info, test kernel options, module options, try a custom compiled kernel etc.
Thank you in advance!

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#2 2022-06-19 14:19:51

V1del
Forum Moderator
Registered: 2012-10-16
Posts: 16,406

Re: ALSA: HDMI Audio stops working after PulseAudio started/stopped

Post

sudo fuser -v /dev/snd/*
pactl list cards
pactl list sinks
pactl list sink-inputs

while trying to play from PA. in code tags

That these speaker-test invocations start to fail while the card is in active use by PA is normal and expected you'd usually route all playback via PA.

Last edited by V1del (2022-06-19 14:24:55)

Offline

#3 2022-06-19 14:37:50

wichtel16
Member
Registered: 2015-01-27
Posts: 3

Re: ALSA: HDMI Audio stops working after PulseAudio started/stopped

Sure:

# fuser -v /dev/snd/*                                                                                                                                                                                       
                     USER        PID ACCESS COMMAND
/dev/snd/controlC0:  pulse      1182 F.... pulseaudio
/dev/snd/pcmC0D3p:   pulse      1182 F...m pulseaudio
# pactl list cards                                                                                                                                                                                          
Card #0
	Name: alsa_card.pci-0000_00_1f.3
	Driver: module-alsa-card.c
	Owner Module: 4
	Properties:
		alsa.card = "0"
		alsa.card_name = "HDA Intel PCH"
		alsa.long_card_name = "HDA Intel PCH at 0x603d1a0000 irq 191"
		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 = "a0c8"
		device.product.name = "Tiger Lake-LP Smart Sound Technology 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:
		input:analog-stereo: Analog Stereo Input (sinks: 0, sources: 1, priority: 32833, available: yes)
		output:analog-stereo: Analog Stereo Output (sinks: 1, sources: 0, priority: 6500, available: no)
		output:analog-stereo+input:analog-stereo: Analog Stereo Duplex (sinks: 1, sources: 1, priority: 6565, available: yes)
		output:hdmi-stereo: Digital Stereo (HDMI) Output (sinks: 1, sources: 0, priority: 38668, available: yes)
		output:hdmi-stereo+input:analog-stereo: Digital Stereo (HDMI) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 38733, available: yes)
		output:hdmi-surround: Digital Surround 5.1 (HDMI) Output (sinks: 1, sources: 0, priority: 33568, available: yes)
		output:hdmi-surround+input:analog-stereo: Digital Surround 5.1 (HDMI) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 33633, available: yes)
		output:hdmi-surround71: Digital Surround 7.1 (HDMI) Output (sinks: 1, sources: 0, priority: 33568, available: yes)
		output:hdmi-surround71+input:analog-stereo: Digital Surround 7.1 (HDMI) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 33633, available: yes)
		output:hdmi-stereo-extra1: Digital Stereo (HDMI 2) Output (sinks: 1, sources: 0, priority: 5700, available: no)
		output:hdmi-stereo-extra1+input:analog-stereo: Digital Stereo (HDMI 2) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 5765, available: yes)
		output:hdmi-surround-extra1: Digital Surround 5.1 (HDMI 2) Output (sinks: 1, sources: 0, priority: 600, available: no)
		output:hdmi-surround-extra1+input:analog-stereo: Digital Surround 5.1 (HDMI 2) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 665, available: yes)
		output:hdmi-surround71-extra1: Digital Surround 7.1 (HDMI 2) Output (sinks: 1, sources: 0, priority: 600, available: no)
		output:hdmi-surround71-extra1+input:analog-stereo: Digital Surround 7.1 (HDMI 2) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 665, available: yes)
		output:hdmi-stereo-extra2: Digital Stereo (HDMI 3) Output (sinks: 1, sources: 0, priority: 5700, available: no)
		output:hdmi-stereo-extra2+input:analog-stereo: Digital Stereo (HDMI 3) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 5765, available: yes)
		output:hdmi-surround-extra2: Digital Surround 5.1 (HDMI 3) Output (sinks: 1, sources: 0, priority: 600, available: no)
		output:hdmi-surround-extra2+input:analog-stereo: Digital Surround 5.1 (HDMI 3) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 665, available: yes)
		output:hdmi-surround71-extra2: Digital Surround 7.1 (HDMI 3) Output (sinks: 1, sources: 0, priority: 600, available: no)
		output:hdmi-surround71-extra2+input:analog-stereo: Digital Surround 7.1 (HDMI 3) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 665, available: yes)
		output:hdmi-stereo-extra3: Digital Stereo (HDMI 4) Output (sinks: 1, sources: 0, priority: 5700, available: no)
		output:hdmi-stereo-extra3+input:analog-stereo: Digital Stereo (HDMI 4) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 5765, available: yes)
		output:hdmi-surround-extra3: Digital Surround 5.1 (HDMI 4) Output (sinks: 1, sources: 0, priority: 600, available: no)
		output:hdmi-surround-extra3+input:analog-stereo: Digital Surround 5.1 (HDMI 4) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 665, available: yes)
		output:hdmi-surround71-extra3: Digital Surround 7.1 (HDMI 4) Output (sinks: 1, sources: 0, priority: 600, available: no)
		output:hdmi-surround71-extra3+input:analog-stereo: Digital Surround 7.1 (HDMI 4) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 665, available: yes)
		output:hdmi-stereo-extra4: Digital Stereo (HDMI 5) Output (sinks: 1, sources: 0, priority: 5700, available: no)
		output:hdmi-stereo-extra4+input:analog-stereo: Digital Stereo (HDMI 5) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 5765, available: yes)
		output:hdmi-surround-extra4: Digital Surround 5.1 (HDMI 5) Output (sinks: 1, sources: 0, priority: 600, available: no)
		output:hdmi-surround-extra4+input:analog-stereo: Digital Surround 5.1 (HDMI 5) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 665, available: yes)
		output:hdmi-surround71-extra4: Digital Surround 7.1 (HDMI 5) Output (sinks: 1, sources: 0, priority: 600, available: no)
		output:hdmi-surround71-extra4+input:analog-stereo: Digital Surround 7.1 (HDMI 5) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 665, available: yes)
		output:hdmi-stereo-extra5: Digital Stereo (HDMI 6) Output (sinks: 1, sources: 0, priority: 5700, available: no)
		output:hdmi-stereo-extra5+input:analog-stereo: Digital Stereo (HDMI 6) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 5765, available: yes)
		output:hdmi-surround-extra5: Digital Surround 5.1 (HDMI 6) Output (sinks: 1, sources: 0, priority: 600, available: no)
		output:hdmi-surround-extra5+input:analog-stereo: Digital Surround 5.1 (HDMI 6) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 665, available: yes)
		output:hdmi-surround71-extra5: Digital Surround 7.1 (HDMI 6) Output (sinks: 1, sources: 0, priority: 600, available: no)
		output:hdmi-surround71-extra5+input:analog-stereo: Digital Surround 7.1 (HDMI 6) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 665, available: yes)
		output:hdmi-stereo-extra6: Digital Stereo (HDMI 7) Output (sinks: 1, sources: 0, priority: 5700, available: no)
		output:hdmi-stereo-extra6+input:analog-stereo: Digital Stereo (HDMI 7) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 5765, available: yes)
		output:hdmi-surround-extra6: Digital Surround 5.1 (HDMI 7) Output (sinks: 1, sources: 0, priority: 600, available: no)
		output:hdmi-surround-extra6+input:analog-stereo: Digital Surround 5.1 (HDMI 7) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 665, available: yes)
		output:hdmi-surround71-extra6: Digital Surround 7.1 (HDMI 7) Output (sinks: 1, sources: 0, priority: 600, available: no)
		output:hdmi-surround71-extra6+input:analog-stereo: Digital Surround 7.1 (HDMI 7) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 665, available: yes)
		output:hdmi-stereo-extra7: Digital Stereo (HDMI 8) Output (sinks: 1, sources: 0, priority: 5700, available: no)
		output:hdmi-stereo-extra7+input:analog-stereo: Digital Stereo (HDMI 8) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 5765, available: yes)
		output:hdmi-surround-extra7: Digital Surround 5.1 (HDMI 8) Output (sinks: 1, sources: 0, priority: 600, available: no)
		output:hdmi-surround-extra7+input:analog-stereo: Digital Surround 5.1 (HDMI 8) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 665, available: yes)
		output:hdmi-surround71-extra7: Digital Surround 7.1 (HDMI 8) Output (sinks: 1, sources: 0, priority: 600, available: no)
		output:hdmi-surround71-extra7+input:analog-stereo: Digital Surround 7.1 (HDMI 8) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 665, available: yes)
		output:hdmi-stereo-extra8: Digital Stereo (HDMI 9) Output (sinks: 1, sources: 0, priority: 5700, available: no)
		output:hdmi-stereo-extra8+input:analog-stereo: Digital Stereo (HDMI 9) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 5765, available: yes)
		output:hdmi-surround-extra8: Digital Surround 5.1 (HDMI 9) Output (sinks: 1, sources: 0, priority: 600, available: no)
		output:hdmi-surround-extra8+input:analog-stereo: Digital Surround 5.1 (HDMI 9) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 665, available: yes)
		output:hdmi-surround71-extra8: Digital Surround 7.1 (HDMI 9) Output (sinks: 1, sources: 0, priority: 600, available: no)
		output:hdmi-surround71-extra8+input:analog-stereo: Digital Surround 7.1 (HDMI 9) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 665, available: yes)
		output:hdmi-stereo-extra9: Digital Stereo (HDMI 10) Output (sinks: 1, sources: 0, priority: 5700, available: no)
		output:hdmi-stereo-extra9+input:analog-stereo: Digital Stereo (HDMI 10) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 5765, available: yes)
		output:hdmi-surround-extra9: Digital Surround 5.1 (HDMI 10) Output (sinks: 1, sources: 0, priority: 600, available: no)
		output:hdmi-surround-extra9+input:analog-stereo: Digital Surround 5.1 (HDMI 10) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 665, available: yes)
		output:hdmi-surround71-extra9: Digital Surround 7.1 (HDMI 10) Output (sinks: 1, sources: 0, priority: 600, available: no)
		output:hdmi-surround71-extra9+input:analog-stereo: Digital Surround 7.1 (HDMI 10) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 665, available: yes)
		output:hdmi-stereo-extra10: Digital Stereo (HDMI 11) Output (sinks: 1, sources: 0, priority: 5700, available: no)
		output:hdmi-stereo-extra10+input:analog-stereo: Digital Stereo (HDMI 11) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 5765, available: yes)
		output:hdmi-surround-extra10: Digital Surround 5.1 (HDMI 11) Output (sinks: 1, sources: 0, priority: 600, available: no)
		output:hdmi-surround-extra10+input:analog-stereo: Digital Surround 5.1 (HDMI 11) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 665, available: yes)
		output:hdmi-surround71-extra10: Digital Surround 7.1 (HDMI 11) Output (sinks: 1, sources: 0, priority: 600, available: no)
		output:hdmi-surround71-extra10+input:analog-stereo: Digital Surround 7.1 (HDMI 11) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 665, available: yes)
		off: Off (sinks: 0, sources: 0, priority: 0, available: yes)
	Active Profile: output:hdmi-stereo+input:analog-stereo
	Ports:
		analog-input-internal-mic: Internal Microphone (type: Mic, priority: 8900, latency offset: 0 usec, availability unknown)
			Properties:
				device.icon_name = "audio-input-microphone"
			Part of profile(s): input:analog-stereo, output:analog-stereo+input:analog-stereo, output:hdmi-stereo+input:analog-stereo, output:hdmi-surround+input:analog-stereo, output:hdmi-surround71+input:analog-stereo, output:hdmi-stereo-extra1+input:analog-stereo, output:hdmi-surround-extra1+input:analog-stereo, output:hdmi-surround71-extra1+input:analog-stereo, output:hdmi-stereo-extra2+input:analog-stereo, output:hdmi-surround-extra2+input:analog-stereo, output:hdmi-surround71-extra2+input:analog-stereo, output:hdmi-stereo-extra3+input:analog-stereo, output:hdmi-surround-extra3+input:analog-stereo, output:hdmi-surround71-extra3+input:analog-stereo, output:hdmi-stereo-extra4+input:analog-stereo, output:hdmi-surround-extra4+input:analog-stereo, output:hdmi-surround71-extra4+input:analog-stereo, output:hdmi-stereo-extra5+input:analog-stereo, output:hdmi-surround-extra5+input:analog-stereo, output:hdmi-surround71-extra5+input:analog-stereo, output:hdmi-stereo-extra6+input:analog-stereo, output:hdmi-surround-extra6+input:analog-stereo, output:hdmi-surround71-extra6+input:analog-stereo, output:hdmi-stereo-extra7+input:analog-stereo, output:hdmi-surround-extra7+input:analog-stereo, output:hdmi-surround71-extra7+input:analog-stereo, output:hdmi-stereo-extra8+input:analog-stereo, output:hdmi-surround-extra8+input:analog-stereo, output:hdmi-surround71-extra8+input:analog-stereo, output:hdmi-stereo-extra9+input:analog-stereo, output:hdmi-surround-extra9+input:analog-stereo, output:hdmi-surround71-extra9+input:analog-stereo, output:hdmi-stereo-extra10+input:analog-stereo, output:hdmi-surround-extra10+input:analog-stereo, output:hdmi-surround71-extra10+input:analog-stereo
		analog-output-headphones: Headphones (type: Headphones, priority: 9900, latency offset: 0 usec, not available)
			Properties:
				device.icon_name = "audio-headphones"
			Part of profile(s): output:analog-stereo, output:analog-stereo+input:analog-stereo
		hdmi-output-0: HDMI / DisplayPort (type: HDMI, priority: 5900, latency offset: 0 usec, available)
			Properties:
				device.icon_name = "video-display"
				device.product.name = "Philips FTV"
			Part of profile(s): output:hdmi-stereo, output:hdmi-stereo+input:analog-stereo, output:hdmi-surround, output:hdmi-surround+input:analog-stereo, output:hdmi-surround71, output:hdmi-surround71+input:analog-stereo
		hdmi-output-1: HDMI / DisplayPort 2 (type: HDMI, priority: 5800, latency offset: 0 usec, not available)
			Properties:
				device.icon_name = "video-display"
			Part of profile(s): output:hdmi-stereo-extra1, output:hdmi-stereo-extra1+input:analog-stereo, output:hdmi-surround-extra1, output:hdmi-surround-extra1+input:analog-stereo, output:hdmi-surround71-extra1, output:hdmi-surround71-extra1+input:analog-stereo
		hdmi-output-2: HDMI / DisplayPort 3 (type: HDMI, priority: 5700, latency offset: 0 usec, not available)
			Properties:
				device.icon_name = "video-display"
			Part of profile(s): output:hdmi-stereo-extra2, output:hdmi-stereo-extra2+input:analog-stereo, output:hdmi-surround-extra2, output:hdmi-surround-extra2+input:analog-stereo, output:hdmi-surround71-extra2, output:hdmi-surround71-extra2+input:analog-stereo
		hdmi-output-3: HDMI / DisplayPort 4 (type: HDMI, priority: 5600, latency offset: 0 usec, not available)
			Properties:
				device.icon_name = "video-display"
			Part of profile(s): output:hdmi-stereo-extra3, output:hdmi-stereo-extra3+input:analog-stereo, output:hdmi-surround-extra3, output:hdmi-surround-extra3+input:analog-stereo, output:hdmi-surround71-extra3, output:hdmi-surround71-extra3+input:analog-stereo
		hdmi-output-4: HDMI / DisplayPort 5 (type: HDMI, priority: 5500, latency offset: 0 usec, not available)
			Properties:
				device.icon_name = "video-display"
			Part of profile(s): output:hdmi-stereo-extra4, output:hdmi-stereo-extra4+input:analog-stereo, output:hdmi-surround-extra4, output:hdmi-surround-extra4+input:analog-stereo, output:hdmi-surround71-extra4, output:hdmi-surround71-extra4+input:analog-stereo
		hdmi-output-5: HDMI / DisplayPort 6 (type: HDMI, priority: 5400, latency offset: 0 usec, not available)
			Properties:
				device.icon_name = "video-display"
			Part of profile(s): output:hdmi-stereo-extra5, output:hdmi-stereo-extra5+input:analog-stereo, output:hdmi-surround-extra5, output:hdmi-surround-extra5+input:analog-stereo, output:hdmi-surround71-extra5, output:hdmi-surround71-extra5+input:analog-stereo
		hdmi-output-6: HDMI / DisplayPort 7 (type: HDMI, priority: 5300, latency offset: 0 usec, not available)
			Properties:
				device.icon_name = "video-display"
			Part of profile(s): output:hdmi-stereo-extra6, output:hdmi-stereo-extra6+input:analog-stereo, output:hdmi-surround-extra6, output:hdmi-surround-extra6+input:analog-stereo, output:hdmi-surround71-extra6, output:hdmi-surround71-extra6+input:analog-stereo
		hdmi-output-7: HDMI / DisplayPort 8 (type: HDMI, priority: 5200, latency offset: 0 usec, not available)
			Properties:
				device.icon_name = "video-display"
			Part of profile(s): output:hdmi-stereo-extra7, output:hdmi-stereo-extra7+input:analog-stereo, output:hdmi-surround-extra7, output:hdmi-surround-extra7+input:analog-stereo, output:hdmi-surround71-extra7, output:hdmi-surround71-extra7+input:analog-stereo
		hdmi-output-8: HDMI / DisplayPort 9 (type: HDMI, priority: 5100, latency offset: 0 usec, not available)
			Properties:
				device.icon_name = "video-display"
			Part of profile(s): output:hdmi-stereo-extra8, output:hdmi-stereo-extra8+input:analog-stereo, output:hdmi-surround-extra8, output:hdmi-surround-extra8+input:analog-stereo, output:hdmi-surround71-extra8, output:hdmi-surround71-extra8+input:analog-stereo
		hdmi-output-9: HDMI / DisplayPort 10 (type: HDMI, priority: 5000, latency offset: 0 usec, not available)
			Properties:
				device.icon_name = "video-display"
			Part of profile(s): output:hdmi-stereo-extra9, output:hdmi-stereo-extra9+input:analog-stereo, output:hdmi-surround-extra9, output:hdmi-surround-extra9+input:analog-stereo, output:hdmi-surround71-extra9, output:hdmi-surround71-extra9+input:analog-stereo
		hdmi-output-10: HDMI / DisplayPort 11 (type: HDMI, priority: 4900, latency offset: 0 usec, not available)
			Properties:
				device.icon_name = "video-display"
			Part of profile(s): output:hdmi-stereo-extra10, output:hdmi-stereo-extra10+input:analog-stereo, output:hdmi-surround-extra10, output:hdmi-surround-extra10+input:analog-stereo, output:hdmi-surround71-extra10, output:hdmi-surround71-extra10+input:analog-stereo
# pactl list sinks                                                                                                                                                                                          
Sink #0
	State: RUNNING
	Name: alsa_output.pci-0000_00_1f.3.hdmi-stereo
	Description: Built-in Audio Digital Stereo (HDMI)
	Driver: module-alsa-card.c
	Sample Specification: s16le 2ch 44100Hz
	Channel Map: front-left,front-right
	Owner Module: 4
	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.hdmi-stereo.monitor
	Latency: 19801 usec, configured 23220 usec
	Flags: HARDWARE DECIBEL_VOLUME LATENCY SET_FORMATS 
	Properties:
		alsa.resolution_bits = "16"
		device.api = "alsa"
		device.class = "sound"
		alsa.class = "generic"
		alsa.subclass = "generic-mix"
		alsa.name = "Philips FTV"
		alsa.id = "HDMI 0"
		alsa.subdevice = "0"
		alsa.subdevice_name = "subdevice #0"
		alsa.device = "3"
		alsa.card = "0"
		alsa.card_name = "HDA Intel PCH"
		alsa.long_card_name = "HDA Intel PCH at 0x603d1a0000 irq 191"
		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 = "a0c8"
		device.product.name = "Tiger Lake-LP Smart Sound Technology Audio Controller"
		device.form_factor = "internal"
		device.string = "hdmi:0"
		device.buffering.buffer_size = "352800"
		device.buffering.fragment_size = "176400"
		device.access_mode = "mmap+timer"
		device.profile.name = "hdmi-stereo"
		device.profile.description = "Digital Stereo (HDMI)"
		device.description = "Built-in Audio Digital Stereo (HDMI)"
		module-udev-detect.discovered = "1"
		device.icon_name = "audio-card-pci"
	Ports:
		hdmi-output-0: HDMI / DisplayPort (type: HDMI, priority: 5900, available)
	Active Port: hdmi-output-0
	Formats:
		pcm
# pactl list sink-inputs                                                                                                                                                                                    
Sink Input #1
	Driver: protocol-native.c
	Owner Module: 5
	Client: 9
	Sink: 0
	Sample Specification: float32le 2ch 44100Hz
	Channel Map: front-left,front-right
	Format: pcm, format.sample_format = "\"float32le\""  format.rate = "44100"  format.channels = "2"  format.channel_map = "\"front-left,front-right\""
	Corked: no
	Mute: no
	Volume: front-left: 65536 / 100% / 0.00 dB,   front-right: 65536 / 100% / 0.00 dB
	        balance 0.00
	Buffer Latency: 44988 usec
	Sink Latency: 19985 usec
	Resample method: copy
	Properties:
		application.icon_name = "google-chrome"
		media.name = "Playback"
		application.name = "Google Chrome"
		native-protocol.peer = "UNIX socket client"
		native-protocol.version = "35"
		application.process.id = "2175"
		application.process.user = "tv"
		application.process.host = "donal"
		application.process.binary = "chrome"
		application.language = "en_US.UTF-8"
		window.x11.display = ":0"
		application.process.machine_id = "3ffa98415a9e483e8334ed339c30bbf3"
		module-stream-restore.id = "sink-input-by-application-name:Google Chrome"

That's me playing a YouTube video through Google Chrome (but the application itself doesn't seem to be an issue - also no sound can be heard from VLC or the gnome settings dialog).

Just as a note, I understand that speaker-test shouldn't work while PA is active. The interesting thing is that even after stopping PA again, I hear no sound anymore through the same speaker-test command that works before PA is started.

Last edited by wichtel16 (2022-06-19 14:38:23)

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