Posts by harrouet

harrouet

Hi there,

I am using the official Libreelec 8.2.5 on a Raspberry Pi 3B+ and admiring the work that devs put on this marvel.

However, I am having trouble with the bluetooth connection to my audio setup (an SMSL AD18, if that's of any help). The device is seen as a headset, and has been working flawlessly with my phone and computer before.

I am able to pair the device. It works for some time, sometimes with a choppy sound (buffer issue?) but then the bluetooth connection drops. It usually takes 10 min or so before dropping.

Actually, I found that the bluetooth controller stops being powered on altogether. FYI, I am using a 3A power adapter, and there is nothing else running other than playing mp3 from my NAS, so it should be enough power for the Pi.

Here is what I get in bluetoothclt when this happens:

diagnose:

Code

[bluetooth]# show
Controller B8:27:EB:DC:7A:75
    Name: BlueZ 5.43
    Alias: HopMedia
    Class: 0x000000
    Powered: no
    Discoverable: no
    Pairable: yes
    UUID: Audio Sink                (0000110b-0000-1000-8000-00805f9b34fb)
    UUID: Generic Attribute Profile (00001801-0000-1000-8000-00805f9b34fb)
    UUID: Audio Source              (0000110a-0000-1000-8000-00805f9b34fb)
    UUID: A/V Remote Control        (0000110e-0000-1000-8000-00805f9b34fb)
    UUID: PnP Information           (00001200-0000-1000-8000-00805f9b34fb)
    UUID: Generic Access Profile    (00001800-0000-1000-8000-00805f9b34fb)
    UUID: A/V Remote Control Target (0000110c-0000-1000-8000-00805f9b34fb)
    Modalias: usb:v1D6Bp0246d052B
    Discovering: no

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trying to power back on:

Code

[bluetooth]# power on
Failed to set power on: org.bluez.Error.Failed

Trying to power off, then on:

Code

[bluetooth]# power off
Changing power off succeeded
[bluetooth]# power on
Failed to set power on: org.bluez.Error.Failed

Only a reboot seems to be able to restore the controller in a good state.

Before you ask, WiFi is disabled, so this is really a Bluetooth issue (I read about issues on BT with sharing frequencies).

Any idea about what is happening?