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Problem: Bluetooth Audio output (Transmitter)
5th Jun, 2016, 03:49 AM
Post: #46
RE: Bluetooth Audio output (Transmitter)
(5th Jun, 2016 03:38 AM)IriDium Wrote:  Is dtparam=audio=on set as default? If not, then I was running a vanilla RPi3 newly flashed image.

Yes it is

Quote:IMX6
/etc/default/bluetooth
BLUETOOTH_ENABLED=0

Not something I have set

This file is part of bluez package

And it should be enabled automagically by upstart service file /etc/init/imx6-bluetooth.conf

Btw, I cloned this file for RPi3, so there should be same behaviour
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5th Jun, 2016, 03:52 AM
Post: #47
RE: Bluetooth Audio output (Transmitter)
FYI: This is default /boot/config.txt
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5th Jun, 2016, 07:28 PM
Post: #48
RE: Bluetooth Audio output (Transmitter)
Commenting out dtparam=audio=on was the crucial point missed.

Connected automatically and played first time around.

Disabled onboard BT and used BT Dongle - worked as expected (Had to re-add the BT speaker via bluetoothctl)

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5th Jun, 2016, 10:29 PM
Post: #49
RE: Bluetooth Audio output (Transmitter)
(4th Jun, 2016 07:36 PM)IriDium Wrote:  So bottom line, the RPi3 BT controller should not be used for audio (Unless you have perforated eardrums or deaf).

I looked a little bit around if this issue is already known, and voila, here it is Smile

And you can found a lot of threads of users having sound issues with onboard BT. All of them are able to solve them by disabling WLAN by "sudo ifdown wlan0".

Maybe you could test it if "sudo ifdown wlan0" helps (unfortunately I'm still not able do connect my speaker using onboard BT Sad)
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6th Jun, 2016, 03:33 AM
Post: #50
RE: Bluetooth Audio output (Transmitter)
(5th Jun, 2016 10:29 PM)Nachteule Wrote:  Maybe you could test it if "sudo ifdown wlan0" helps (unfortunately I'm still not able do connect my speaker using onboard BT Sad)

Sure, I'll give it a go. (Won't be for a couple of days) I also want to check the permissions. I can't see why access to "lp" (cups and printing) is required for it to work.

However, until the driver/hardware or whatever is solved, it seems rather pointless having BT audio but no wifi or vice versa, or buying additional dongles.

However, I think we are almost there.

I'll be glad when this is solved and put to bed, it's been a right pain!!

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7th Jun, 2016, 01:05 AM
Post: #51
RE: Bluetooth Audio output (Transmitter)
RPi3: Just rerun the selections (on a new installation) with the addition of dtparam=audio=on and it worked flawlessly.

The "lp" permissions are required otherwise you get a bluez.error.Failed. Odd.

Even using the onboard BT and WIFI up (But not connected) - the sound was Ok - no glitches or any stutters.

However, using ONLY onboard WIFI (No ethernet) I got the stutters back.

sudo ifdown wlan0 didn't really help in that instance.

However, disabling WIFI in xbian-config and rebooting, it was back to normal usable sound.

Even reconnected automatically on reboot.

IMX6: Is there an equivalant to dtparam=audio=on for the cubox-i as I had the same issue, connected OK but no sound?

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9th Jun, 2016, 04:18 AM
Post: #52
RE: Bluetooth Audio output (Transmitter)
I've just tried the "same" on a cubox-i using the onboard BT and the latest image but the quality of the sound was even worse than the RPi at it's worse. I tried disabling the onboard wifi but didn't help

Looking at the solidrun website, seems to suggest that this is a known problem and hasn't really been resolved.

Sensible solution stick to wired. It's better quality and works Cool

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