[LE10|RPi3B] Bluetooth audio device changer not returning to default audio

the_third_pi · July 8, 2022 at 3:32 AM

Pulse audio is not returning to default source after turning off Bluetooth headphones until manually browsing to settings/system/audio. Once on that window it will switch the input back to default as expected. If I just leave the settings/system/audio window open when I switch it becomes blank and doesn't switch until I reload the window. Is this a known problem or is there a workaround or have I totally done something wrong?

I wasn't sure what to put in the 'Audio Device' setting for Bluetooth Audio Device Changer so I set it to "ALSA:@". If there is something else I should be setting this to, let me know. Debug log can be provided, if needed.

RPi3B LE 10.0.2 Bluetooth Audio Device Changer 10.0.0.102

**mglae** · July 8, 2022 at 11:44 PM

Quote from the_third_pi

I wasn't sure what to put in the 'Audio Device' setting for Bluetooth Audio Device Changer so I set it to "ALSA:@"

Best practice to set the correct device in Bluetooth Changer:

Deinstall Bluetooth Changer Addon and it's configuration
Configure correct audio device via kodi settings.
Install Bluetooth Changer again. It will use the kodi setting as default.

If still failing debug log may tell more.

the_third_pi · July 9, 2022 at 1:29 AM

Sorry to say it remains to be a problem for me. I have tried doing the steps you mentioned and have produced a debug log with the problem. This problem only occurs when switching back to default it doesn't occur when switching to Pulse, which always works instantly instead of having to go into settings/system/audio.

http://ix.io/420l

**mglae** · July 9, 2022 at 3:57 PM Best Answer

The issue is visible in the log. The default audio device returned by kodi is "Default" but when trying to set the value again it is interpreted as "PULSE:Default".

Your alsa devices are:

Code

2022-07-08 18:11:15.669 T:984      INFO <general>: Enumerated ALSA devices:
2022-07-08 18:11:15.669 T:984      INFO <general>:     Device 1
2022-07-08 18:11:15.670 T:984      INFO <general>:         m_deviceName      : @
2022-07-08 18:11:15.670 T:984      INFO <general>:         m_displayName     : Default (vc4-hdmi MAI PCM i2s-hifi-0) ()
2022-07-08 18:11:15.670 T:984      INFO <general>:         m_displayNameExtra: 
2022-07-08 18:11:15.670 T:984      INFO <general>:         m_deviceType      : AE_DEVTYPE_PCM
2022-07-08 18:11:15.670 T:984      INFO <general>:         m_channels        : FL, FR
2022-07-08 18:11:15.670 T:984      INFO <general>:         m_sampleRates     : 32000,44100,48000,96000
2022-07-08 18:11:15.670 T:984      INFO <general>:         m_dataFormats     : AE_FMT_S24NE3,AE_FMT_S24NE4,AE_FMT_S32NE,AE_FMT_S16NE,AE_FMT_S16LE,AE_FMT_S16BE
2022-07-08 18:11:15.670 T:984      INFO <general>:         m_streamTypes     : No passthrough capabilities
2022-07-08 18:11:15.670 T:984      INFO <general>:     Device 2
2022-07-08 18:11:15.670 T:984      INFO <general>:         m_deviceName      : sysdefault
2022-07-08 18:11:15.670 T:984      INFO <general>:         m_displayName     : vc4-hdmi ()
2022-07-08 18:11:15.670 T:984      INFO <general>:         m_displayNameExtra: MAI PCM i2s-hifi-0
2022-07-08 18:11:15.670 T:984      INFO <general>:         m_deviceType      : AE_DEVTYPE_PCM
2022-07-08 18:11:15.670 T:984      INFO <general>:         m_channels        : FL, FR
2022-07-08 18:11:15.670 T:984      INFO <general>:         m_sampleRates     : 32000,44100,48000,96000
2022-07-08 18:11:15.670 T:984      INFO <general>:         m_dataFormats     : AE_FMT_S24NE3,AE_FMT_S24NE4,AE_FMT_S32NE,AE_FMT_S16NE,AE_FMT_S16LE,AE_FMT_S16BE
2022-07-08 18:11:15.670 T:984      INFO <general>:         m_streamTypes     : No passthrough capabilities
2022-07-08 18:11:15.670 T:984      INFO <general>:     Device 3
2022-07-08 18:11:15.670 T:984      INFO <general>:         m_deviceName      : sysdefault:CARD=vc4hdmi
2022-07-08 18:11:15.670 T:984      INFO <general>:         m_displayName     : vc4-hdmi (vc4hdmi)
2022-07-08 18:11:15.670 T:984      INFO <general>:         m_displayNameExtra: MAI PCM i2s-hifi-0
2022-07-08 18:11:15.670 T:984      INFO <general>:         m_deviceType      : AE_DEVTYPE_PCM
2022-07-08 18:11:15.670 T:984      INFO <general>:         m_channels        : FL, FR
2022-07-08 18:11:15.670 T:984      INFO <general>:         m_sampleRates     : 32000,44100,48000,96000
2022-07-08 18:11:15.670 T:984      INFO <general>:         m_dataFormats     : AE_FMT_S24NE3,AE_FMT_S24NE4,AE_FMT_S32NE,AE_FMT_S16NE,AE_FMT_S16LE,AE_FMT_S16BE
2022-07-08 18:11:15.670 T:984      INFO <general>:         m_streamTypes     : No passthrough capabilities
2022-07-08 18:11:15.670 T:984      INFO <general>:     Device 4
2022-07-08 18:11:15.670 T:984      INFO <general>:         m_deviceName      : hdmi:CARD=vc4hdmi,DEV=0
2022-07-08 18:11:15.670 T:984      INFO <general>:         m_displayName     : vc4-hdmi (vc4hdmi)
2022-07-08 18:11:15.670 T:984      INFO <general>:         m_displayNameExtra: ACI ASUS VP247 on HDMI
2022-07-08 18:11:15.670 T:984      INFO <general>:         m_deviceType      : AE_DEVTYPE_HDMI
2022-07-08 18:11:15.670 T:984      INFO <general>:         m_channels        : FL, FR
2022-07-08 18:11:15.670 T:984      INFO <general>:         m_sampleRates     : 32000,44100,48000,96000
2022-07-08 18:11:15.670 T:984      INFO <general>:         m_dataFormats     : AE_FMT_RAW,AE_FMT_S24NE3,AE_FMT_S24NE4,AE_FMT_S32NE,AE_FMT_S16NE,AE_FMT_S16LE,AE_FMT_S16BE,AE_FMT_U8,AE_FMT_RAW
2022-07-08 18:11:15.670 T:984      INFO <general>:         m_streamTypes     : STREAM_TYPE_AC3,STREAM_TYPE_DTSHD,STREAM_TYPE_DTSHD_MA,STREAM_TYPE_DTSHD_CORE,STREAM_TYPE_DTS_1024,STREAM_TYPE_DTS_2048,STREAM_TYPE_DTS_512,STREAM_TYPE_EAC3,STREAM_TYPE_TRUEHD

Display More

To avoid any guessing try all possible devices:

"ALSA:Default"

"ALSA:@" (already tested by you with failure)
"ALSA:sysdefault"
"ALSA:sysdefault:CARD=vc4hdmi"
"ALSA:hdmi:CARD=vc4hdmi,DEV=0"

the_third_pi · July 9, 2022 at 6:47 PM

Works as intended with ALSA:Default, thank you very much.