[Bug 1703415] Re: Bluetooth audio devices/profiles are missing after logging in from GDM

[Bug Watch Updater]

** Changed in: pulseaudio
   Status: Unknown => New

** Changed in: gdm
   Status: Unknown => Fix Released

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Title:
  Bluetooth audio devices/profiles are missing after logging in from GDM

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[Bug 1703415] Re: Bluetooth audio devices/profiles are missing after logging in from GDM

[Daniel van Vugt]

Oops. It appears this was fixed in gdm3 in 2017. If you have any more
problems then please open new bugs.

** Tags added: a2dp

** No longer affects: gdm3 (Ubuntu Zesty)

** No longer affects: pulseaudio (Ubuntu Zesty)

** Bug watch added: gitlab.gnome.org/GNOME/gdm/-/issues #323
   https://gitlab.gnome.org/GNOME/gdm/-/issues/323

** Changed in: gdm
   Importance: Medium => Unknown

** Changed in: gdm
   Status: Expired => Unknown

** Changed in: gdm
 Remote watch: GNOME Bug Tracker #784856 => gitlab.gnome.org/GNOME/gdm/-/issues 
#323

** Bug watch added: gitlab.freedesktop.org/pulseaudio/pulseaudio/-/issues #340
   https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/issues/340

** Changed in: pulseaudio
   Importance: Medium => Unknown

** Changed in: pulseaudio
 Remote watch: freedesktop.org Bugzilla #57167 => 
gitlab.freedesktop.org/pulseaudio/pulseaudio/-/issues #340

** Also affects: bluez (Ubuntu)
   Importance: Undecided
   Status: New

** No longer affects: bluez (Ubuntu Xenial)

** No longer affects: gdm3 (Ubuntu Xenial)

** No longer affects: pulseaudio (Ubuntu Xenial)

** Changed in: bluez (Ubuntu)
   Status: New => Confirmed

** No longer affects: bluez (Ubuntu)

** No longer affects: pulseaudio (Ubuntu)

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Title:
  Bluetooth audio devices/profiles are missing after logging in from GDM

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[Bug 1703415] Re: Bluetooth audio devices/profiles are missing after logging in from GDM

[Saroumane]

Hello,
I'm landing here after tracking a bug : I could not output sound to my SRS-XB22 
bluetooth speaker.
I had in logs :
`src/service.c:btd_service_connect() a2dp-sink profile connect failed for 
F8:DF:15:7F:ED:AA: Protocol not available`

I found a workaround here 
https://askubuntu.com/questions/1172000/a2dp-sink-profile-connect-failed
```
$ pactl load-module module-bluetooth-policy
$ pactl load-module module-bluetooth-discover
```

I did not understand why these commands were mandatory as I already have
them in `/etc/pulse/default.pa`

Then I checked my `~/.config/pulse/default.pa`  and found this :
```
#!/usr/bin/pulseaudio -nF
#
# Work around for PA not allowing access to A2DP profiles in the user session
# because GDM already has it open.
# LP: #1703415

# load system wide configuration
.include /etc/pulse/default.pa

### unload driver modules for Bluetooth hardware
.ifexists module-bluetooth-policy.so
  unload-module module-bluetooth-policy
.endif

.ifexists module-bluetooth-discover.so
  unload-module module-bluetooth-discover
.endif
```

So here, we are : today, with
- Ubuntu 20.10
- Pulseaudio 1:13.99.2-1ubuntu2.1
- BlueZ 5.55-0ubuntu1.1

=> I do not reproduce the original bug.

=> Moreover, the now unnecessary workaround in
`~/.config/pulse/default.pa` is preventing normal use for bluetooth
devices.

**Workaround for the workaround** : comment the lines in 
`~/.config/pulse/default.pa`
```
#!/usr/bin/pulseaudio -nF
#
# Work around for PA not allowing access to A2DP profiles in the user session
# because GDM already has it open.
# LP: #1703415

# load system wide configuration
.include /etc/pulse/default.pa

### unload driver modules for Bluetooth hardware
#.ifexists module-bluetooth-policy.so
#  unload-module module-bluetooth-policy
#.endif
#

#.ifexists module-bluetooth-discover.so
#  unload-module module-bluetooth-discover
#.endif
```

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Title:
  Bluetooth audio devices/profiles are missing after logging in from GDM

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[Bug 1703415] Re: Bluetooth audio devices/profiles are missing after logging in from GDM

[Bug Watch Updater]

Launchpad has imported 3 comments from the remote bug at
https://bugs.freedesktop.org/show_bug.cgi?id=57167.

If you reply to an imported comment from within Launchpad, your comment
will be sent to the remote bug automatically. Read more about
Launchpad's inter-bugtracker facilities at
https://help.launchpad.net/InterBugTracking.


On 2012-11-15T19:31:15+00:00 Tanu Kaskinen wrote:

In module-bluetooth-device.c in filter_cb() there's this piece of code:

if (acquire)
if (bt_transport_acquire(u, FALSE) >= 0) {
if (u->source)
pa_source_suspend(u->source, FALSE, 
PA_SUSPEND_IDLE|PA_SUSPEND_USER);

if (u->sink)
pa_sink_suspend(u->sink, FALSE, 
PA_SUSPEND_IDLE|PA_SUSPEND_USER);
}

The acquire variable is set to true if the bluetooth audio state changed
to "playing". This can happen without pulseaudio requesting it, so if we
want to have strict equivalence "sink/source suspended" == "audio state
is 'playing'" (and I think we want that), then it makes sense that
module-bluetooth-device unsuspends the sink/source. The problem here is
that there's no clean "force unsuspend" mechanism in pulseaudio.
pa_sink_suspend(u->sink, FALSE, PA_SUSPEND_IDLE|PA_SUSPEND_USER) may not
actually unsuspend the sink, because there are also other suspend
reasons than just IDLE and USER. So, depending on the situation, the
sink may or may not get unsuspended.

module-bluetooth-device could list all possible reasons in the
pa_sink_suspend() call, but that would be ugly. When adding new suspend
reasons, it would be very easy to forget to update the pa_sink_suspend()
call in module-bluetooth-device, and besides, if those suspend reasons
are originally set by some other code, the original reasons to suspend
don't really disappear when module-bluetooth-device unsuspends the sink,
the old reasons are just overridden.

I think there should be a function for forcing unsuspending. The
semantics would be such that the sink gets unsuspended regardless of any
standing suspend reasons, but all standing suspend reasons would be
remembered, and once a new suspend request would be made, the forced
unsuspend would cease to have effect, the sink would suspend and things
would return to normal.

A related thing is that I would like to replace the single suspend
reason bitfield in pa_sink with an individual suspend request object for
each suspend request. The single suspend reason bitfield is prone to
conflicts if multiple places use the same reason (for example, module-
bluetooth-device uses the USER reason which is also used for other
purposes).

Reply at:
https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1703415/comments/0


On 2012-11-15T20:44:28+00:00 Tanu Kaskinen wrote:

(In reply to comment #0)
> The problem here is that
> there's no clean "force unsuspend" mechanism in pulseaudio.
> pa_sink_suspend(u->sink, FALSE, PA_SUSPEND_IDLE|PA_SUSPEND_USER) may not
> actually unsuspend the sink, because there are also other suspend reasons
> than just IDLE and USER. So, depending on the situation, the sink may or may
> not get unsuspended.
> 
> module-bluetooth-device could list all possible reasons in the
> pa_sink_suspend() call, but that would be ugly. When adding new suspend
> reasons, it would be very easy to forget to update the pa_sink_suspend()
> call in module-bluetooth-device, and besides, if those suspend reasons are
> originally set by some other code, the original reasons to suspend don't
> really disappear when module-bluetooth-device unsuspends the sink, the old
> reasons are just overridden.

Correction: there is the PA_SUSPEND_ALL suspend cause. That looks like a
good simple solution to this bug, even though it doesn't solve all the
described problems. But at least it will reliably unsuspend the sink.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1703415/comments/1


On 2018-07-30T10:19:12+00:00 Gitlab-migration wrote:

-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has
been closed from further activity.

You can subscribe and participate further through the new bug through
this link to our GitLab instance:
https://gitlab.freedesktop.org/pulseaudio/pulseaudio/issues/340.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1703415/comments/16


** Changed in: pulseaudio
   Status: Confirmed => Unknown

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Title:
  Bluetooth audio devices/profiles are missing after logging in from GDM

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[Bug 1703415] Re: Bluetooth audio devices/profiles are missing after logging in from GDM

[Bug Watch Updater]

** Changed in: gdm
   Status: Confirmed => Expired

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Title:
  Bluetooth audio devices/profiles are missing after logging in from GDM

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[Bug 1703415] Re: Bluetooth audio devices/profiles are missing after logging in from GDM

[Thorsten Munsch]

I can confirm this one on (X)ubuntu 14.04.5 LTS with XFCE 4.10 desktop.

The suggested fixes work for me aswell.

Another problem appears when bluetooth is disabled on boot (which I
always do because of paranoia ;)).

Both Pulseaudio modules won't get loaded by my XFCE autostart script. I
have to run it again after bluetooth is enabled manually.

Then my JBL Flip 3 speaker appers instantly in the Pulseaudio settings
besides the onboard sound device.

Everything else works like a charm.

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Title:
  Bluetooth audio devices/profiles are missing after logging in from GDM

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[Bug 1703415] Re: Bluetooth audio devices/profiles are missing after logging in from GDM

[Launchpad Bug Tracker]

This bug was fixed in the package gdm3 - 3.24.2-1ubuntu9

---
gdm3 (3.24.2-1ubuntu9) artful; urgency=medium

  * debian/default.pa
- Added new file to disable Bluetooth audio devices in PulseAudio from
  gdm3. (LP: #1703415) (LP: #1489651)
  * debian/gdm3.install
- Added details of the default.pa file
  * debian/gdm3.postinst
- Added installation of default.pa and creation of dir if it doesn't
  exist.

 -- Will Cooke   Thu, 13 Jul 2017 12:14:34 +0100

** Changed in: gdm3 (Ubuntu)
   Status: Fix Committed => Fix Released

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Title:
  Bluetooth audio devices/profiles are missing after logging in from GDM

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[Bug 1703415] Re: Bluetooth audio devices/profiles are missing after logging in from GDM

[Jeremy Bicha]

** Also affects: pulseaudio (Ubuntu Zesty)
   Importance: Undecided
   Status: New

** Also affects: gdm3 (Ubuntu Zesty)
   Importance: Undecided
   Status: New

** Also affects: pulseaudio (Ubuntu Xenial)
   Importance: Undecided
   Status: New

** Also affects: gdm3 (Ubuntu Xenial)
   Importance: Undecided
   Status: New

** Changed in: gdm3 (Ubuntu Xenial)
   Importance: Undecided => High

** Changed in: gdm3 (Ubuntu Xenial)
   Status: New => Triaged

** Changed in: gdm3 (Ubuntu Zesty)
   Importance: Undecided => High

** Changed in: gdm3 (Ubuntu Zesty)
   Status: New => Triaged

** Changed in: pulseaudio (Ubuntu Xenial)
   Importance: Undecided => High

** Changed in: pulseaudio (Ubuntu Xenial)
   Status: New => Triaged

** Changed in: pulseaudio (Ubuntu Zesty)
   Importance: Undecided => High

** Changed in: pulseaudio (Ubuntu Zesty)
   Status: New => Triaged

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Title:
  Bluetooth audio devices/profiles are missing after logging in from GDM

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[Bug 1703415] Re: Bluetooth audio devices/profiles are missing after logging in from GDM

[Will Cooke]

** Changed in: gdm3 (Ubuntu)
 Assignee: (unassigned) => Will Cooke (willcooke)

** Changed in: gdm3 (Ubuntu)
   Status: Triaged => Fix Committed

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Title:
  Bluetooth audio devices/profiles are missing after logging in from GDM

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[Bug 1703415] Re: Bluetooth audio devices/profiles are missing after logging in from GDM

[Daniel van Vugt]

** Changed in: pulseaudio (Ubuntu)
   Importance: Undecided => High

** Changed in: pulseaudio (Ubuntu)
   Status: Confirmed => Triaged

** Changed in: gdm3 (Ubuntu)
   Status: Confirmed => Triaged

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Title:
  Bluetooth audio devices/profiles are missing after logging in from GDM

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[Bug 1703415] Re: Bluetooth audio devices/profiles are missing after logging in from GDM

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: pulseaudio (Ubuntu)
   Status: New => Confirmed

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Title:
  Bluetooth audio devices/profiles are missing after logging in from GDM

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[Bug 1703415] Re: Bluetooth audio devices/profiles are missing after logging in from GDM

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: gdm3 (Ubuntu)
   Status: New => Confirmed

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Title:
  Bluetooth audio devices/profiles are missing after logging in from GDM

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[Bug 1703415] Re: Bluetooth audio devices/profiles are missing after logging in from GDM

[Daniel van Vugt]

** Summary changed:

- Disable Bluetooth sink in GDM to allow A2DP in the user session
+ Bluetooth audio devices/profiles are missing after logging in from GDM

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Title:
  Bluetooth audio devices/profiles are missing after logging in from GDM

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