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#1 2019-09-08 04:11:18

sergej139
Member
Registered: 2019-09-08
Posts: 2

BT Headset volume very low

I am using a Sony MDR 1000X headphone. Since month everything is fine, now, few days ago I connected them as always and now the sound is more or less gone, unless I put it up to 150% where I can hear the sound but just very low. It is using the a2dp sink.

There is no issue with the BT headphone, as with my phone its still working perfectly.

Now here are few system informations.

 > uname -a
Linux eris 5.2.13-arch1-1-ARCH #1 SMP PREEMPT Fri Sep 6 17:52:33 UTC 2019 x86_64 GNU/Linux
 > pacman -Q | grep alsa
alsa-lib 1.1.9-2
alsa-plugins 1.1.9-2
alsa-utils 1.1.9-1
bluez-alsa-git 1.4.0.r51.g4c32fc3-1
pulseaudio-alsa 2-5
zita-alsa-pcmi 0.3.2-1
 > sudo systemctl status bluetooth
● bluetooth.service - Bluetooth service
   Loaded: loaded (/etc/systemd/system/bluetooth.service; enabled; vendor preset: disabled)
   Active: active (running) since Sun 2019-09-08 12:02:55 CST; 1min 25s ago
     Docs: man:bluetoothd(8)
 Main PID: 3146 (bluetoothd)
   Status: "Running"
    Tasks: 1 (limit: 4915)
   Memory: 1.7M
   CGroup: /system.slice/bluetooth.service
           └─3146 /usr/lib/bluetooth/bluetoothd

Sep 08 12:02:55 eris systemd[1]: Starting Bluetooth service...
Sep 08 12:02:55 eris bluetoothd[3146]: Bluetooth daemon 5.50
Sep 08 12:02:55 eris systemd[1]: Started Bluetooth service.
Sep 08 12:02:55 eris bluetoothd[3146]: Starting SDP server
Sep 08 12:02:55 eris bluetoothd[3146]: Bluetooth management interface 1.14 initialized
Sep 08 12:02:55 eris bluetoothd[3146]: Endpoint registered: sender=:1.43 path=/MediaEndpoint/A2DPSource
Sep 08 12:02:55 eris bluetoothd[3146]: Endpoint registered: sender=:1.43 path=/MediaEndpoint/A2DPSink
Sep 08 12:03:18 eris bluetoothd[3146]: /org/bluez/hci0/dev_04_5D_4B_49_D1_43/fd0: fd(25) ready
 > pacmd list-cards
2 card(s) available.
    index: 0
	name: <alsa_card.pci-0000_00_1f.3>
	driver: <module-alsa-card.c>
	owner module: 6
	properties:
		alsa.card = "0"
		alsa.card_name = "HDA Intel PCH"
		alsa.long_card_name = "HDA Intel PCH at 0xf1140000 irq 130"
		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 = "9d70"
		device.product.name = "Sunrise Point-LP HD Audio"
		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:hdmi-stereo: Digital Stereo (HDMI) Output (priority 5900, available: no)
		output:hdmi-stereo+input:analog-stereo: Digital Stereo (HDMI) Output + Analog Stereo Input (priority 5965, available: unknown)
		output:hdmi-surround: Digital Surround 5.1 (HDMI) Output (priority 800, available: no)
		output:hdmi-surround+input:analog-stereo: Digital Surround 5.1 (HDMI) Output + Analog Stereo Input (priority 865, available: unknown)
		output:hdmi-surround71: Digital Surround 7.1 (HDMI) Output (priority 800, available: no)
		output:hdmi-surround71+input:analog-stereo: Digital Surround 7.1 (HDMI) Output + Analog Stereo Input (priority 865, available: unknown)
		output:hdmi-stereo-extra1: Digital Stereo (HDMI 2) Output (priority 5700, available: no)
		output:hdmi-stereo-extra1+input:analog-stereo: Digital Stereo (HDMI 2) Output + Analog Stereo Input (priority 5765, available: unknown)
		output:hdmi-surround-extra1: Digital Surround 5.1 (HDMI 2) Output (priority 600, available: no)
		output:hdmi-surround-extra1+input:analog-stereo: Digital Surround 5.1 (HDMI 2) Output + Analog Stereo Input (priority 665, available: unknown)
		output:hdmi-surround71-extra1: Digital Surround 7.1 (HDMI 2) Output (priority 600, available: no)
		output:hdmi-surround71-extra1+input:analog-stereo: Digital Surround 7.1 (HDMI 2) Output + Analog Stereo Input (priority 665, available: unknown)
		output:hdmi-stereo-extra2: Digital Stereo (HDMI 3) Output (priority 5700, available: no)
		output:hdmi-stereo-extra2+input:analog-stereo: Digital Stereo (HDMI 3) Output + Analog Stereo Input (priority 5765, available: unknown)
		output:hdmi-surround-extra2: Digital Surround 5.1 (HDMI 3) Output (priority 600, available: no)
		output:hdmi-surround-extra2+input:analog-stereo: Digital Surround 5.1 (HDMI 3) Output + Analog Stereo Input (priority 665, available: unknown)
		output:hdmi-surround71-extra2: Digital Surround 7.1 (HDMI 3) Output (priority 600, available: no)
		output:hdmi-surround71-extra2+input:analog-stereo: Digital Surround 7.1 (HDMI 3) Output + Analog Stereo Input (priority 665, available: unknown)
		output:hdmi-stereo-extra3: Digital Stereo (HDMI 4) Output (priority 5700, available: no)
		output:hdmi-stereo-extra3+input:analog-stereo: Digital Stereo (HDMI 4) Output + Analog Stereo Input (priority 5765, available: unknown)
		output:hdmi-surround-extra3: Digital Surround 5.1 (HDMI 4) Output (priority 600, available: no)
		output:hdmi-surround-extra3+input:analog-stereo: Digital Surround 5.1 (HDMI 4) Output + Analog Stereo Input (priority 665, available: unknown)
		output:hdmi-surround71-extra3: Digital Surround 7.1 (HDMI 4) Output (priority 600, available: no)
		output:hdmi-surround71-extra3+input:analog-stereo: Digital Surround 7.1 (HDMI 4) Output + Analog Stereo Input (priority 665, available: unknown)
		output:hdmi-stereo-extra4: Digital Stereo (HDMI 5) Output (priority 5700, available: no)
		output:hdmi-stereo-extra4+input:analog-stereo: Digital Stereo (HDMI 5) Output + Analog Stereo Input (priority 5765, available: unknown)
		output:hdmi-surround-extra4: Digital Surround 5.1 (HDMI 5) Output (priority 600, available: no)
		output:hdmi-surround-extra4+input:analog-stereo: Digital Surround 5.1 (HDMI 5) Output + Analog Stereo Input (priority 665, available: unknown)
		output:hdmi-surround71-extra4: Digital Surround 7.1 (HDMI 5) Output (priority 600, available: no)
		output:hdmi-surround71-extra4+input:analog-stereo: Digital Surround 7.1 (HDMI 5) Output + Analog Stereo Input (priority 665, available: unknown)
		off: Off (priority 0, available: unknown)
	active profile: <output:analog-stereo+input:analog-stereo>
	sinks:
		alsa_output.pci-0000_00_1f.3.analog-stereo/#0: Built-in Audio Analog Stereo
	sources:
		alsa_output.pci-0000_00_1f.3.analog-stereo.monitor/#0: Monitor of Built-in Audio Analog Stereo
		alsa_input.pci-0000_00_1f.3.analog-stereo/#1: Built-in Audio Analog Stereo
	ports:
		analog-input-internal-mic: Internal Microphone (priority 8900, latency offset 0 usec, available: unknown)
			properties:
				device.icon_name = "audio-input-microphone"
		analog-input-mic: Microphone (priority 8700, latency offset 0 usec, available: no)
			properties:
				device.icon_name = "audio-input-microphone"
		analog-output-speaker: Speakers (priority 10000, latency offset 0 usec, available: unknown)
			properties:
				device.icon_name = "audio-speakers"
		analog-output-headphones: Headphones (priority 9000, latency offset 0 usec, available: no)
			properties:
				device.icon_name = "audio-headphones"
		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"
		hdmi-output-4: HDMI / DisplayPort 5 (priority 5500, latency offset 0 usec, available: no)
			properties:
				device.icon_name = "video-display"
    index: 2
	name: <bluez_card.04_5D_4B_49_D1_43>
	driver: <module-bluez5-device.c>
	owner module: 28
	properties:
		device.description = "MDR-1000X"
		device.string = "04:5D:4B:49:D1:43"
		device.api = "bluez"
		device.class = "sound"
		device.bus = "bluetooth"
		device.form_factor = "headset"
		bluez.path = "/org/bluez/hci0/dev_04_5D_4B_49_D1_43"
		bluez.class = "0x240404"
		bluez.alias = "MDR-1000X"
		device.icon_name = "audio-headset-bluetooth"
		device.intended_roles = "phone"
	profiles:
		headset_head_unit: Headset Head Unit (HSP/HFP) (priority 30, available: unknown)
		a2dp_sink: High Fidelity Playback (A2DP Sink) (priority 40, available: unknown)
		off: Off (priority 0, available: yes)
	active profile: <a2dp_sink>
	sinks:
		bluez_sink.04_5D_4B_49_D1_43.a2dp_sink/#2: MDR-1000X
	sources:
		bluez_sink.04_5D_4B_49_D1_43.a2dp_sink.monitor/#3: Monitor of MDR-1000X
	ports:
		headset-output: Headset (priority 0, latency offset 0 usec, available: unknown)
			properties:
				
		headset-input: Headset (priority 0, latency offset 0 usec, available: unknown)
			properties:
 > pacmd list-sinks
2 sink(s) available.
    index: 0
	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: 26204 /  40% / -23.89 dB,   front-right: 26204 /  40% / -23.89 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: 0
	sample spec: s16le 2ch 44100Hz
	channel map: front-left,front-right
	             Stereo
	used by: 0
	linked by: 0
	configured latency: 0.00 ms; range is 0.50 .. 2000.00 ms
	card: 0 <alsa_card.pci-0000_00_1f.3>
	module: 6
	properties:
		alsa.resolution_bits = "16"
		device.api = "alsa"
		device.class = "sound"
		alsa.class = "generic"
		alsa.subclass = "generic-mix"
		alsa.name = "ALC293 Analog"
		alsa.id = "ALC293 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 0xf1140000 irq 130"
		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 = "9d70"
		device.product.name = "Sunrise Point-LP HD Audio"
		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 ALC293"
		alsa.components = "HDA:10ec0293,17aa5059,00100003 HDA:80862809,80860101,00100000"
		module-udev-detect.discovered = "1"
		device.icon_name = "audio-card-pci"
	ports:
		analog-output-speaker: Speakers (priority 10000, latency offset 0 usec, available: unknown)
			properties:
				device.icon_name = "audio-speakers"
		analog-output-headphones: Headphones (priority 9000, latency offset 0 usec, available: no)
			properties:
				device.icon_name = "audio-headphones"
	active port: <analog-output-speaker>
  * index: 2
	name: <bluez_sink.04_5D_4B_49_D1_43.a2dp_sink>
	driver: <module-bluez5-device.c>
	flags: HARDWARE DECIBEL_VOLUME LATENCY 
	state: SUSPENDED
	suspend cause: IDLE
	priority: 9050
	volume: front-left: 56502 /  86% / -3.86 dB,   front-right: 56502 /  86% / -3.86 dB
	        balance 0.00
	base volume: 65536 / 100% / 0.00 dB
	volume steps: 65537
	muted: no
	current latency: 0.00 ms
	max request: 3 KiB
	max rewind: 0 KiB
	monitor source: 3
	sample spec: s16le 2ch 44100Hz
	channel map: front-left,front-right
	             Stereo
	used by: 0
	linked by: 0
	fixed latency: 45.32 ms
	card: 2 <bluez_card.04_5D_4B_49_D1_43>
	module: 28
	properties:
		bluetooth.protocol = "a2dp_sink"
		device.description = "MDR-1000X"
		device.string = "04:5D:4B:49:D1:43"
		device.api = "bluez"
		device.class = "sound"
		device.bus = "bluetooth"
		device.form_factor = "headset"
		bluez.path = "/org/bluez/hci0/dev_04_5D_4B_49_D1_43"
		bluez.class = "0x240404"
		bluez.alias = "MDR-1000X"
		device.icon_name = "audio-headset-bluetooth"
		device.intended_roles = "phone"
	ports:
		headset-output: Headset (priority 0, latency offset 0 usec, available: unknown)
			properties:
				
	active port: <headset-output>

there was not alsa/bt related upgrades in the last 2-3 days on my machine.

Thanks for any input/help.

Last edited by sergej139 (2019-09-08 04:12:07)

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#2 2019-09-08 14:59:26

sergej139
Member
Registered: 2019-09-08
Posts: 2

Re: BT Headset volume very low

So i just came home now. Now its working again. No reboot. No service restart. No config changes. Just works. Weird.

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