I found other questions similar to mine but without a working answer. On RPi3 with Raspbian Stretch I'm trying to connect to a Bluetooth speaker. It connects but I have no audio output.
pi@rpi(rw):~$ systemctl status bluetooth
● bluetooth.service - Bluetooth service
Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset
Active: active (running) since Sun 2017-09-17 12:32:38 CEST; 1h 4min ago
Docs: man:bluetoothd(8)
Main PID: 2769 (bluetoothd)
Status: "Running"
CGroup: /system.slice/bluetooth.service
└─2769 /usr/lib/bluetooth/bluetoothd
pi@rpi(rw):~$ systemctl status hciuart
● hciuart.service - Configure Bluetooth Modems connected by UART
Loaded: loaded (/lib/systemd/system/hciuart.service; enabled; vendor preset:
Active: active (running) since Sun 2017-09-17 12:35:15 CEST; 1h 2min ago
Main PID: 2923 (hciattach)
CGroup: /system.slice/hciuart.service
└─2923 /usr/bin/hciattach /dev/serial1 bcm43xx 921600 noflow - b8:27:
Sep 17 12:35:10 rpi systemd[1]: Starting Configure Bluetooth Modems connecte
Sep 17 12:35:15 rpi btuart[2893]: bcm43xx_init
Sep 17 12:35:15 rpi btuart[2893]: Flash firmware /lib/firmware/BCM43430A1.hc
Sep 17 12:35:15 rpi btuart[2893]: Set BDADDR UART: b8:27:eb:83:f6:a2
Sep 17 12:35:15 rpi btuart[2893]: Set Controller UART speed to 921600 bit/s
Sep 17 12:35:15 rpi btuart[2893]: Device setup complete
Sep 17 12:35:15 rpi systemd[1]: Started Configure Bluetooth Modems connected
Then I connected to my device using bluetoothctl:
$ bluetoothctl
[NEW] Controller B8:27:EB:83:F6:A2 BlueZ 5.43 [default]
[NEW] Device 8C:DE:52:16:4F:51 SRS-BTV5
[SRS-BTV5]# connect 8C:DE:52:16:4F:51
Attempting to connect to 8C:DE:52:16:4F:51
Connection successful
[SRS-BTV5]# info 8C:DE:52:16:4F:51
Device 8C:DE:52:16:4F:51
Name: SRS-BTV5
Alias: SRS-BTV5
Class: 0x240414
Icon: audio-card
Paired: yes
Trusted: yes
Blocked: no
Connected: yes
LegacyPairing: no
UUID: Headset (00001108-0000-1000-8000-00805f9b34fb)
UUID: Audio Sink (0000110b-0000-1000-8000-00805f9b34fb)
UUID: A/V Remote Control Target (0000110c-0000-1000-8000-00805f9b34fb)
UUID: A/V Remote Control (0000110e-0000-1000-8000-00805f9b34fb)
UUID: Handsfree (0000111e-0000-1000-8000-00805f9b34fb)
UUID: PnP Information (00001200-0000-1000-8000-00805f9b34fb)
Modalias: bluetooth:v0039p13A4d2207
ManufacturerData Key: 0x5349
ManufacturerData Value: 0x53
ManufacturerData Value: 0x43
here the available sinks:
$ pacmd list-sinks short
2 sink(s) available.
index: 0
name: <alsa_output.platform-soc_audio.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY FLAT_VOLUME DYNAMIC_LATENCY
state: SUSPENDED
suspend cause: IDLE
priority: 9009
volume: front-left: 65500 / 100% / -0.01 dB, front-right: 65500 / 100% / -0.01 dB
balance 0.00
base volume: 56210 / 86% / -4.00 dB
volume steps: 65537
muted: no
current latency: 0.00 ms
max request: 0 KiB
max rewind: 0 KiB
monitor source: 1
sample spec: s16le 2ch 48000Hz
channel map: front-left,front-right
Stereo
used by: 0
linked by: 0
configured latency: 0.00 ms; range is 0.50 .. 682.67 ms
card: 1 <alsa_card.platform-soc_audio>
module: 7
properties:
alsa.resolution_bits = "16"
device.api = "alsa"
device.class = "sound"
alsa.class = "generic"
alsa.subclass = "generic-mix"
alsa.name = "bcm2835 ALSA"
alsa.id = "bcm2835 ALSA"
alsa.subdevice = "0"
alsa.subdevice_name = "subdevice #0"
alsa.device = "0"
alsa.card = "0"
alsa.card_name = "bcm2835 ALSA"
alsa.long_card_name = "bcm2835 ALSA"
alsa.driver_name = "snd_bcm2835"
device.bus_path = "platform-soc:audio"
sysfs.path = "/devices/platform/soc/soc:audio/sound/card0"
device.string = "hw:0"
device.buffering.buffer_size = "131072"
device.buffering.fragment_size = "131072"
device.access_mode = "mmap+timer"
device.profile.name = "analog-stereo"
device.profile.description = "Analog Stereo"
device.description = "bcm2835 ALSA Analog Stereo"
alsa.mixer_name = "Broadcom Mixer"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card"
ports:
analog-output: Analog Output (priority 9900, latency offset 0 usec, available: unknown)
properties:
active port: <analog-output>
* index: 1
name: <bluez_sink.8C_DE_52_16_4F_51.headset_head_unit>
driver: <module-bluez5-device.c>
flags: HARDWARE HW_VOLUME_CTRL LATENCY
state: SUSPENDED
suspend cause: IDLE
priority: 9530
volume: mono: 65536 / 100%
balance 0.00
base volume: 65536 / 100%
volume steps: 16
muted: no
current latency: 0.00 ms
max request: 0 KiB
max rewind: 0 KiB
monitor source: 2
sample spec: s16le 1ch 8000Hz
channel map: mono
Mono
used by: 0
linked by: 0
fixed latency: 128.00 ms
card: 2 <bluez_card.8C_DE_52_16_4F_51>
module: 24
properties:
bluetooth.protocol = "headset_head_unit"
device.intended_roles = "phone"
device.description = "SRS-BTV5"
device.string = "8C:DE:52:16:4F:51"
device.api = "bluez"
device.class = "sound"
device.bus = "bluetooth"
device.form_factor = "speaker"
bluez.path = "/org/bluez/hci0/dev_8C_DE_52_16_4F_51"
bluez.class = "0x240414"
bluez.alias = "SRS-BTV5"
device.icon_name = "audio-speakers-bluetooth"
ports:
speaker-output: Speaker (priority 0, latency offset 0 usec, available: unknown)
properties:
active port: <speaker-output>
Volume is at 100% as you can see. Now I set up the default sink:
$pacmd set-default-sink bluez_sink.8C_DE_52_16_4F_51.headset_head_unit
and try to play:
$paplay test.ogg
and the previous command shows:
...
active port: <analog-output>
* index: 1
name: <bluez_sink.8C_DE_52_16_4F_51.headset_head_unit>
driver: <module-bluez5-device.c>
flags: HARDWARE HW_VOLUME_CTRL LATENCY
state: RUNNING
...
but no sound comes from the BT speaker. Other things I checked:
- the same audio file is played correctly on the HDMI output
- the same BT speaker works fine if connected to another device (i.e. smartphone)
- the hardware volume of the BT speaker is set to maximum value
Why it doesn't work? What should I check also?
