Unable to get sound from Hifiberry Digi+ via Bluetooth

Tagged: bluetooth, DAC, HiFiBerry;

This topic has 2 replies, 2 voices, and was last updated 1 year, 8 months ago by Kops premium.

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Posted in: Max2Play on Raspberry PI
Kops premium

14. März 2023 at 20:04 #52722

Hello, I have three Raspberry PI 3b+ running M2P version Version 2.56.
On one of these that has Hifiberry Digi+ with Tosslink (optical out) I cannot get any sound over Bluetooth. Phone connected, BT plugin installed and running, Stream directly to soundcard enabled, soundcard selected, everything seems OK, Tidal playing song, but no sound. Squeeze lite and all other things work OK. I have tried different BT devices, no luck, tried enabling-disabling „Enable I2S-MMAP“, …
On the other two RPI with Hifiberry AMP+ everything works fine, including BT streaming.
Any clue what else to try? Isn’t somewhere mixer that would put the input to 0 or something? Thank you for any ideas.

Debug info:
#### Bluetooth Installation ####

#### Bluetooth Dongle ####
hci0: Type: Primary Bus: UART
BD Address: B8:27:EB:8D:BF:7C ACL MTU: 1021:8 SCO MTU: 64:1
UP RUNNING PSCAN
RX bytes:367013 acl:802 sco:0 events:152 errors:0
TX bytes:4542 acl:69 sco:0 commands:98 errors:0

#### DEVICE HUAWEI P30 Pro ####
spawn /usr/bin/bluetoothctl
Waiting to connect to bluetoothd…
[0;94m[bluetooth][0m#

[[0;92mNEW[0m] Controller B8:27:EB:8D:BF:7C ObyvakHiFi [default]
[0;94m[bluetooth][0m#

[[0;92mNEW[0m] Device 94:E9:EE:B8:43:B7 HUAWEI P30 Pro
[0;94m[bluetooth][0m#

[[0;92mNEW[0m] Device 50:E7:B7:A3:A6:4B vivo X80 Pro
[0;94m[bluetooth][0m#
[0;94m[vivo X80 Pro][0m# info 94:E9:EE:B8:43:B7
Device 94:E9:EE:B8:43:B7
Name: HUAWEI P30 Pro
Alias: HUAWEI P30 Pro
Class: 0x5a020c
Icon: phone
Paired: yes
Trusted: no
Blocked: no
Connected: no
LegacyPairing: no

#### DEVICE vivo X80 Pro ####
spawn /usr/bin/bluetoothctl
Waiting to connect to bluetoothd…
[0;94m[bluetooth][0m#

[[0;92mNEW[0m] Controller B8:27:EB:8D:BF:7C ObyvakHiFi [default]
[0;94m[bluetooth][0m#

[[0;92mNEW[0m] Device 94:E9:EE:B8:43:B7 HUAWEI P30 Pro
[0;94m[bluetooth][0m#

[[0;92mNEW[0m] Device 50:E7:B7:A3:A6:4B vivo X80 Pro
[0;94m[bluetooth][0m#
[0;94m[vivo X80 Pro][0m# info 50:E7:B7:A3:A6:4B
Device 50:E7:B7:A3:A6:4B
Name: vivo X80 Pro
Alias: vivo X80 Pro
Class: 0x5a020c
Icon: phone
Paired: yes
Trusted: yes
Blocked: no
Connected: yes
LegacyPairing: no

#### BLUEALSA RUNNING ####
2

MarioM Moderator

16. März 2023 at 13:58 #52734

Hi Kops,

You somehow have two Bluealsa instances running, which could possibly interfere. Maybe try uninstalling Bluetooth on the device (inside the Bluetooth plugin), then update your Max2Play version (under Settings/Reboot) and then reinstall Bluetooth. Try connecting only the smartphone, set the audio player to the correct output and test the direct stream to the sound card again.

You could otherwise check the volume by accessing the Pi via SSH (or with our remote control plugin) and typing alsamixer. There you can set the output via F6.

Kops premium

16. März 2023 at 18:10 #52738

Hi Mario,
thank you for detailed steps. I did follow these but it ended up the same. The fact of having two Bluealsa happens once I install BT plugin and then (the second) when I enable the BT speaker below in the plugin.
However, I managed to make it work, however it is a bit weird. When I stop Squeezelite service, the BT starts playing flawlessly. It is interesting, because on the other RPI I do not have to unload Squeezelite to be able to play over Bluetooth.

Thank you anyway for your help.
Prokop

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