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[PROBLEM] Bluetooth Audio output (Transmitter)
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Problem: Bluetooth Audio output (Transmitter)
5th Jun, 2021, 12:06 AM
Post: #69
ppianigiani Offline
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Posts: 9
Joined: May 2021
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RE: Bluetooth Audio output (Transmitter)
(3rd Jun, 2021 04:16 AM)Nachteule Wrote:  Anyway if you delete the 00-disable-autospawn.conf or set autospawn=yes pulseaudio starts automatically when Kodi is started

OK, I was able to have pulseaudio started automatically with Kodi, but in this case I was never able to have my BT HPs working fine.

From all the testing I've made, in order to have Kodi's GUI and videos&addons sounds on my BT HPs, it seems there are 2 strict conditions that must be met:
  1. pulseaudio MUST be already running when kodi starts
  2. 'bluetoothctl connect <dev>' command MUST be executed when pulseaudio is already running

I guess I can sort of explain the second point (I suspect that a 'pulseaudio' sink MUST already exist in order to successfully connect a BT output device) and I easily tested it on my 'rc.local approach': swapping the execution order, with "bluetooth connect <dev>" command before "pulseaudio --start", no way I can get sounds from my HPs, while the other way around always works fine.

I'm not sure of the second point, but I've tested it in 2 different ways:
  • running kodi service with autostart and pulseaudio with autospawn=yes, while executing "bluetoothctl connect" from /etc/rc.local => doesn't work, no sound from HPs, neither the "connection active" prompt
  • running kodi service with autostart and pulseaudio with autospawn=yes, while executing "bluetoothctl connect" from USERRUN script, with option "xbmc start" =>doesn't work either, no sound from HPs, neither the "connection active" prompt

The point is that when pulseaudio is automatically started with kodi, it's actually started AFTER kodi (pulseaudio pid always higher than kodi pid) and that's why I'm supposing pulseaudio MUST be already running when kodi starts to have it working fine, even if I can't explain why. Does this make any sense to you?

Many thanks!

EDIT
I've added one more test:
  • pulseaudio and kodi service started from /etc/rc.local
  • "bluetoothctl connect <dev>" executed from USERRUN script, with option "xbmc start"

In this case, my HPs never get connected, Kodi crashes immediately and I never see the GUI...
This seems quite a confirmation of the first condition, but once more I can't explain why.
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Messages In This Thread
Bluetooth Audio output (Transmitter) - IriDium - 30th Apr, 2016, 12:12 AM
RE: Bluetooth Audio output (Transmitter) - Nachteule - 30th Apr, 2016, 04:11 AM
RE: Bluetooth Audio output (Transmitter) - BreadPit - 7th Feb, 2019, 08:17 PM
RE: Bluetooth Audio output (Transmitter) - Nachteule - 8th Feb, 2019, 06:29 AM
RE: Bluetooth Audio output (Transmitter) - IriDium - 30th Apr, 2016, 05:10 AM
RE: Bluetooth Audio output (Transmitter) - schiway - 10th May, 2016, 03:35 PM
RE: Bluetooth Audio output (Transmitter) - Nachteule - 12th May, 2016, 11:02 PM
RE: Bluetooth Audio output (Transmitter) - IriDium - 10th May, 2016, 07:54 PM
RE: Bluetooth Audio output (Transmitter) - schiway - 12th May, 2016, 06:42 PM
RE: Bluetooth Audio output (Transmitter) - IriDium - 12th May, 2016, 07:38 PM
RE: Bluetooth Audio output (Transmitter) - schiway - 12th May, 2016, 08:32 PM
RE: Bluetooth Audio output (Transmitter) - IriDium - 13th May, 2016, 12:05 AM
RE: Bluetooth Audio output (Transmitter) - Nachteule - 13th May, 2016, 12:23 AM
RE: Bluetooth Audio output (Transmitter) - Nachteule - 13th May, 2016, 12:31 AM
RE: Bluetooth Audio output (Transmitter) - IriDium - 13th May, 2016, 12:48 AM
RE: Bluetooth Audio output (Transmitter) - Nachteule - 13th May, 2016, 01:11 AM
RE: Bluetooth Audio output (Transmitter) - IriDium - 13th May, 2016, 03:16 AM
RE: Bluetooth Audio output (Transmitter) - schiway - 13th May, 2016, 04:18 AM
RE: Bluetooth Audio output (Transmitter) - IriDium - 13th May, 2016, 04:43 AM
RE: Bluetooth Audio output (Transmitter) - schiway - 14th May, 2016, 03:25 AM
RE: Bluetooth Audio output (Transmitter) - IriDium - 15th May, 2016, 01:12 AM
RE: Bluetooth Audio output (Transmitter) - schiway - 15th May, 2016, 04:53 AM
RE: Bluetooth Audio output (Transmitter) - IriDium - 15th May, 2016, 05:52 AM
RE: Bluetooth Audio output (Transmitter) - schiway - 15th May, 2016, 11:56 PM
RE: Bluetooth Audio output (Transmitter) - IriDium - 16th May, 2016, 02:58 AM
RE: Bluetooth Audio output (Transmitter) - Nachteule - 16th May, 2016, 03:20 AM
RE: Bluetooth Audio output (Transmitter) - IriDium - 16th May, 2016, 09:36 PM
RE: Bluetooth Audio output (Transmitter) - IriDium - 16th May, 2016, 11:56 PM
RE: Bluetooth Audio output (Transmitter) - schiway - 18th May, 2016, 02:35 AM
RE: Bluetooth Audio output (Transmitter) - IriDium - 18th May, 2016, 02:57 AM
RE: Bluetooth Audio output (Transmitter) - IriDium - 20th May, 2016, 11:20 PM
RE: Bluetooth Audio output (Transmitter) - Nachteule - 21st May, 2016, 12:07 AM
RE: Bluetooth Audio output (Transmitter) - IriDium - 21st May, 2016, 12:30 AM
RE: Bluetooth Audio output (Transmitter) - schiway - 21st May, 2016, 02:10 AM
RE: Bluetooth Audio output (Transmitter) - f1vefour - 21st May, 2016, 06:26 AM
RE: Bluetooth Audio output (Transmitter) - IriDium - 1st Jun, 2016, 10:53 PM
RE: Bluetooth Audio output (Transmitter) - Nachteule - 2nd Jun, 2016, 02:06 AM
RE: Bluetooth Audio output (Transmitter) - IriDium - 2nd Jun, 2016, 03:43 AM
RE: Bluetooth Audio output (Transmitter) - Nachteule - 2nd Jun, 2016, 04:03 AM
RE: Bluetooth Audio output (Transmitter) - IriDium - 2nd Jun, 2016, 04:10 AM
RE: Bluetooth Audio output (Transmitter) - IriDium - 4th Jun, 2016, 07:36 PM
RE: Bluetooth Audio output (Transmitter) - Nachteule - 4th Jun, 2016, 09:52 PM
RE: Bluetooth Audio output (Transmitter) - IriDium - 4th Jun, 2016, 10:16 PM
RE: Bluetooth Audio output (Transmitter) - Nachteule - 5th Jun, 2016, 01:28 AM
RE: Bluetooth Audio output (Transmitter) - Nachteule - 5th Jun, 2016, 10:29 PM
RE: Bluetooth Audio output (Transmitter) - IriDium - 6th Jun, 2016, 03:33 AM
RE: Bluetooth Audio output (Transmitter) - IriDium - 5th Jun, 2016, 03:24 AM
RE: Bluetooth Audio output (Transmitter) - Nachteule - 5th Jun, 2016, 03:29 AM
RE: Bluetooth Audio output (Transmitter) - IriDium - 5th Jun, 2016, 03:38 AM
RE: Bluetooth Audio output (Transmitter) - Nachteule - 5th Jun, 2016, 03:49 AM
RE: Bluetooth Audio output (Transmitter) - Nachteule - 5th Jun, 2016, 03:52 AM
RE: Bluetooth Audio output (Transmitter) - IriDium - 5th Jun, 2016, 07:28 PM
RE: Bluetooth Audio output (Transmitter) - IriDium - 7th Jun, 2016, 01:05 AM
RE: Bluetooth Audio output (Transmitter) - IriDium - 9th Jun, 2016, 04:18 AM
RE: Bluetooth Audio output (Transmitter) - ppianigiani - 28th May, 2021, 10:21 PM
RE: Bluetooth Audio output (Transmitter) - Nachteule - 29th May, 2021, 05:03 AM
RE: Bluetooth Audio output (Transmitter) - ppianigiani - 30th May, 2021, 01:33 AM
RE: Bluetooth Audio output (Transmitter) - ppianigiani - 30th May, 2021, 10:15 PM
RE: Bluetooth Audio output (Transmitter) - Nachteule - 30th May, 2021, 10:32 PM
RE: Bluetooth Audio output (Transmitter) - ppianigiani - 1st Jun, 2021, 01:55 AM
RE: Bluetooth Audio output (Transmitter) - Nachteule - 1st Jun, 2021, 03:20 AM
RE: Bluetooth Audio output (Transmitter) - ppianigiani - 1st Jun, 2021, 07:41 PM
RE: Bluetooth Audio output (Transmitter) - Nachteule - 1st Jun, 2021, 03:38 AM
RE: Bluetooth Audio output (Transmitter) - Nachteule - 1st Jun, 2021, 09:05 PM
RE: Bluetooth Audio output (Transmitter) - ppianigiani - 1st Jun, 2021, 11:36 PM
RE: Bluetooth Audio output (Transmitter) - Nachteule - 2nd Jun, 2021, 04:47 AM
RE: Bluetooth Audio output (Transmitter) - ppianigiani - 3rd Jun, 2021, 12:30 AM
RE: Bluetooth Audio output (Transmitter) - Nachteule - 3rd Jun, 2021, 04:16 AM
RE: Bluetooth Audio output (Transmitter) - ppianigiani - 5th Jun, 2021 12:06 AM
RE: Bluetooth Audio output (Transmitter) - Nachteule - 7th Jun, 2021, 02:20 AM
RE: Bluetooth Audio output (Transmitter) - ppianigiani - 8th Jun, 2021, 01:03 AM
RE: Bluetooth Audio output (Transmitter) - Nachteule - 20th Jun, 2021, 03:55 AM
RE: Bluetooth Audio output (Transmitter) - gkusiak - 28th Nov, 2022, 04:40 AM
RE: Bluetooth Audio output (Transmitter) - Nachteule - 28th Nov, 2022, 05:05 AM
RE: Bluetooth Audio output (Transmitter) - gkusiak - 4th Dec, 2022, 04:19 AM
RE: Bluetooth Audio output (Transmitter) - Nachteule - 5th Dec, 2022, 04:32 AM
RE: Bluetooth Audio output (Transmitter) - gkusiak - 5th Dec, 2022, 02:25 PM

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