[pulseaudio] sink volume item state pemanently resets to 0

[bondarmih]

My pulseaudio server configured with number of virtual sinks for multiroom routing. Pulseaudio thing is configured in PaperUI. It is possible to change any sink volume with REST interface or in HABPanel widget, and Pulseaudio server respectively changes it's sink state. But after some delay (15-30 sec) item state resets to 0 itself, at than Pulseaudio sink volume stays invariable. As a result, all volume widgets displays 0 instead of actual values.

2017-02-24 23:47:25.603 [ItemCommandEvent ] - Item 'S3_combined_Volume' received command 83 2017-02-24 23:47:25.607 [ItemStateChangedEvent ] - S3_combined_Volume changed from 0 to 83 2017-02-24 23:47:46.373 [ItemStateChangedEvent ] - S3_combined_Volume changed from 83 to 0

[bondarmih]

My sinks are single-channel. But pattern matcher requires a stereo sink

[peuter]

Can you provide the output of the pactl list sinks command for the volume entry for a single channel sink.
e,g, for stereo channel sinks it looks like this:

Volume: front-left: 52429 /  80% / -5,81 dB,   front-right: 52429 /  80% / -5,81 dB
	        balance 0,00

[bondarmih]

In my case Volume entry has no named channels.

pactl list sinks output:

Sink #1
	State: SUSPENDED
	Name: alsa_output.0.analog-surround-51
	Description: SB Audigy Analog Surround 5.1
	Driver: module-alsa-card.c
	Sample Specification: s16le 6ch 48000Hz
	Channel Map: front-left,front-right,rear-left,rear-right,front-center,lfe
	Owner Module: 1
	Mute: no
	Volume: 0: 100% 1: 100% 2: 100% 3: 100% 4: 100% 5: 100%
	        0: 0,00 dB 1: 0,00 dB 2: 0,00 dB 3: 0,00 dB 4: 0,00 dB 5: 0,00 dB
	        balance 0,00
	Base Volume: 100%
	             0,00 dB
	Monitor Source: alsa_output.0.analog-surround-51.monitor
	Latency: 0 usec, configured 0 usec
	Flags: HARDWARE HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY 
	Properties:
		alsa.resolution_bits = "16"
		device.api = "alsa"
		device.class = "sound"
		alsa.class = "generic"
		alsa.subclass = "generic-mix"
		alsa.name = "ADC Capture/Standard PCM Playback"
		alsa.id = "emu10k1"
		alsa.subdevice = "0"
		alsa.subdevice_name = "subdevice #0"
		alsa.device = "0"
		alsa.card = "0"
		alsa.card_name = "SB Audigy 1 [SB0092]"
		alsa.long_card_name = "SB Audigy 1 [SB0092] (rev.3, serial:0x531102) at 0xd000, irq 18"
		alsa.driver_name = "snd_emu10k1"
		device.bus_path = "pci-0000:04:02.0"
		sysfs.path = "/devices/pci0000:00/0000:00:1e.0/0000:04:02.0/sound/card0"
		device.bus = "pci"
		device.vendor.id = "1102"
		device.vendor.name = "Creative Labs"
		device.product.name = "SB Audigy"
		device.string = "surround51:0"
		device.buffering.buffer_size = "46080"
		device.buffering.fragment_size = "5760"
		device.access_mode = "serial"
		device.profile.name = "analog-surround-51"
		device.profile.description = "Analog Surround 5.1"
		device.description = "SB Audigy Analog Surround 5.1"
		alsa.mixer_name = "SigmaTel STAC9721,23"
		alsa.components = "AC97a:83847609"
		device.icon_name = "audio-card-pci"
	Ports:
		analog-output;output-amplifier-on: Analog Output / Amplifier (priority: 9910)
		analog-output;output-amplifier-off: Analog Output / No Amplifier (priority: 9900)
	Active Port: analog-output;output-amplifier-on
	Formats:
		pcm

Sink #2
	State: SUSPENDED
	Name: s1_room1
	Description: s1_room1
	Driver: module-remap-sink.c
	Sample Specification: s16le 1ch 48000Hz
	Channel Map: mono
	Owner Module: 2
	Mute: no
	Volume: 0: 100%
	        0: 0,00 dB
	        balance 0,00
	Base Volume: 100%
	             0,00 dB
	Monitor Source: s1_room1.monitor
	Latency: 0 usec, configured 0 usec
	Flags: DECIBEL_VOLUME LATENCY 
	Properties:
		device.master_device = "alsa_output.0.analog-surround-51"
		device.class = "filter"
		device.description = "s1_room1"
		device.icon_name = "audio-card"
	Formats:
		pcm

system.pa:
load-module module-remap-sink sink_name=s1_room1 master=alsa_output.0.analog-surround-51 channels=1 master_channel_map=front-left channel_map=mono remix=no sink_properties=device.description="s1_room1"

pactl info output:
Server String: /var/run/pulse/native Library Protocol Version: 26 Server Protocol Version: 26 Is Local: yes Client Index: 37938 Tile Size: 65472 User Name: pulse Host Name: bhome01 Server Name: pulseaudio Server Version: 1.1 Default Sample Specification: s16le 1ch 44100Hz Default Channel Map: mono Default Sink: alsa_output.0.analog-surround-51 Default Source: alsa_output.0.analog-surround-51.monitor Cookie: 222d:aac7
Pulseaudio version is 1.1, latest in Ubuntu 12.04.1 repo. Should I update it?

My previous installation of Openhab 1.7.1 works well with this Pulseaudio instance.

[peuter]

I don't know if an update can help but as Pulseaudio 1.1 is rather old, it is worth a try.

[jimduchek]

I am having these exact same symptoms, although I have found the problem and I'm afraid it will not solve bondarmih's issue, but it is a simple fix for mine. The regex does not support a decimal point in the dB reading (i.e. in this locale, the US and I believe the UK as well?) it shows as 1.23 dB, not 1,23 dB. Changing the two dB bits from ([0-9\-, dB]+) to ([0-9\-., dB]+) fixes this.

[peuter]

@jimduchek Can you create a pull request with that fix?

[jimduchek]

@peuter Sure, it'll take me a bit though. I have been meaning to get a build environment setup anyway... sigh sometimes I do miss the days of './configure ; make ; make install' :)

[jimduchek]

#2297

[peuter]

As #2297 has been merged I guess we can close this issue?