[pulseaudio-tickets] [Bug 91502] New: Audio unstable using HFP profileon IMX6

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91502

            Bug ID: 91502
           Summary: Audio unstable using HFP profileon IMX6
           Product: PulseAudio
           Version: unspecified
          Hardware: ARM
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: modules
          Assignee: pulseaudio-bugs at lists.freedesktop.org
          Reporter: mallory.daries at gmail.com
        QA Contact: pulseaudio-bugs at lists.freedesktop.org
                CC: lennart at poettering.net

Created attachment 117444
  --> https://bugs.freedesktop.org/attachment.cgi?id=117444&action=edit
Pulseaudio log first time succes + 2nd time fail

Hi,
I'm currently integrating in Yocto pulseaudio 6.0 with bluez 5.28 and ofono
1.16 on a Nitrogen6x board (with dongle bluetooth Belkin).
My purpose is to use the board as handsfree gateway: 
with a smartphone connected via bluetooth redirect the sound of a voicecall
from the smartphone to the board output (HFP profile).

I already got it work on my computer as I can hear the voicecall with the
computer's speaker as output and use the integrated microphone as input.
I'm using Pulseaudio launched as a user-instance with the backend ofono.
I had strange behaviour testing it : 

After connecting my phone with bluetoothctl pulseaudio create an HF card and I
got the same output as on my computer where HFP is working
D: [pulseaudio] bluez5-util.c: oFono is running: yes
D: [pulseaudio] backend-ofono.c: New HF card found: /card_4
D: [pulseaudio] backend-ofono.c: RemoteAddress: 40:A6:D9:6E:1B:73
D: [pulseaudio] backend-ofono.c: LocalAddress: 00:0A:3A:7A:3A:58
D: [pulseaudio] bluez5-util.c: Transport /card_4 state changed from
disconnected to idle
D: [pulseaudio] module-bluez5-discover.c: Loading module-bluez5-device
path=/org/bluez/hci0/dev_40_A6_D9_6E_1B_73
I: [pulseaudio] module-card-restore.c: Restoring port latency offsets for card
bluez_card.40_A6_D9_6E_1B_73.
I: [pulseaudio] card.c: Created 1 "bluez_card.40_A6_D9_6E_1B_73"
D: [pulseaudio] module-bluez5-device.c: Acquiring transport /card_4
E: [pulseaudio] backend-ofono.c: Deferred setup failed on fd -1: Transport
endpoint is not connected

I dial a number on my phone and it works well at the first try, the audio is
routed to the output of the board.(see pulseaudio_log_success_HFP)
Then, I hangup the call and make a second try, and the problems are coming :

pulseaudio loops for few minutes :

I: [alsa-sink-HiFi sgtl5000-0] module-loopback.c: Could not peek into queue
D: [bluetooth] module-loopback.c: Requesting rewind due to end of underrun.

and I also have this kind of messages with dmesg :

Bluetooth: hci0 SCO packet for unknown connection handle 0
Bluetooth: hci0 SCO packet for unknown connection handle 0
Bluetooth: hci0 SCO packet for unknown connection handle 0
Bluetooth: hci0 SCO packet for unknown connection handle 0
Bluetooth: hci0 SCO packet for unknown connection handle 0
Bluetooth: hci0 SCO packet for unknown connection handle 0
Bluetooth: hci0 SCO packet for unknown connection handle 0
Bluetooth: hci0 SCO packet for unknown connection handle 0
Bluetooth: hci0 SCO packet for unknown connection handle 0
Bluetooth: hci0 SCO packet for unknown connection handle 0
Bluetooth: hci0 SCO packet for unknown connection handle 0
Bluetooth: hci0 SCO packet for unknown connection handle 0
Bluetooth: hci0 SCO packet for unknown connection handle 0
Bluetooth: hci0 SCO packet for unknown connection handle 0
Bluetooth: hci0 SCO packet for unknown connection handle 0
Bluetooth: hci0 SCO packet for unknown connection handle 1536
Bluetooth: hci0 SCO packet for unknown connection handle 48
Bluetooth: hci0 SCO packet for unknown connection handle 0
Bluetooth: hci0 SCO packet for unknown connection handle 0
Bluetooth: hci0 SCO packet for unknown connection handle 0
Bluetooth: hci0 SCO packet for unknown connection handle 0
Bluetooth: hci0 SCO packet for unknown connection handle 0
Bluetooth: hci0 SCO packet for unknown connection handle 0
Bluetooth: hci0 SCO packet for unknown connection handle 0
Bluetooth: hci0 SCO packet for unknown connection handle 0
Bluetooth: hci0 SCO packet for unknown connection handle 0
Bluetooth: hci0 SCO packet for unknown connection handle 0
Bluetooth: hci0 SCO packet for unknown connection handle 0
Bluetooth: hci0 SCO packet for unknown connection handle 0
Bluetooth: hci0 SCO packet for unknown connection handle 0
Bluetooth: hci0 SCO packet for unknown connection handle 0
Bluetooth: hci0 SCO packet for unknown connection handle 0
Bluetooth: hci0 SCO packet for unknown connection handle 1536
Bluetooth: hci0 SCO packet for unknown connection handle 48
Bluetooth: hci0 SCO packet for unknown connection handle 0
Bluetooth: hci0 SCO packet for unknown connection handle 4864
Bluetooth: hci0 SCO packet for unknown connection handle 14
Bluetooth: hci0 SCO packet for unknown connection handle 61695
Bluetooth: hci0 SCO packet for unknown connection handle 65527
Bluetooth: hci0 SCO packet for unknown connection handle 0
Bluetooth: hci0 SCO packet for unknown connection handle 65520
Bluetooth: hci0 SCO packet for unknown connection handle 57392
Bluetooth: hci0 SCO packet for unknown connection handle 101
Bluetooth: hci0 SCO packet for unknown connection handle 63191
Bluetooth: hci0 SCO packet for unknown connection handle 641
Bluetooth: hci0 SCO packet for unknown connection handle 3566
Bluetooth: hci0 SCO packet for unknown connection handle 60418
Bluetooth: hci0 SCO packet for unknown connection handle 41479
Bluetooth: hci0 SCO packet for unknown connection handle 2516
Bluetooth: hci0 SCO packet for unknown connection handle 6178
Bluetooth: hci0 SCO packet for unknown connection handle 56309
Bluetooth: hci0 SCO packet for unknown connection handle 5636
Bluetooth: hci0 SCO packet for unknown connection handle 20508
Bluetooth: Unexpected continuation frame (len 0)
Bluetooth: Unexpected continuation frame (len 0)
Bluetooth: Unexpected continuation frame (len 0)

No sound can be heard in that case.

Ask me for any further information that could be useful.

Mallory

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