Bug#805414: gdm3: disable pulseaudio to prevent capturing A2DP sink on session start

[Michael Biebl]

Am 02.07.2017 um 23:11 schrieb Antoine Beaupré:
> On 2017-07-02 02:41:26, Michael Biebl wrote:
>> Am 02.07.2017 um 02:38 schrieb Michael Biebl:
>>> Am 02.07.2017 um 02:30 schrieb Antoine Beaupré:
>>>> Or do we treat this as a PA bug ("should release BT")?
>>>
>>> I'm not sure, actually.
>>
>>
>> https://wiki.archlinux.org/index.php/Talk:Bluetooth_headset#GDMs_pulseaudio_instance_captures_bluetooth_headset
>>
>> suggests that a custom PA config shipped by gdm could workaround this by
>> unloading the bluetooth module.
>>
>> That feels a bit like a hack though.
>> The real issue is probably that PA doesn't release the BT device.
> 
> So I have found this is already reported in the PA bugtracker in #845938
> (merged with #848130) - let's treat this separately.
> 
> There's a workaround for GDM: disable bluetooth support as documented in
> the Arch wiki. We could patch the gdm3 pacakge to do exactly that while
> PA fixes its stuff.
> 
> The rationale behind disabling BT support there is that there's zero UI
> in GDM3 to pair devices. Until those exists, it's meaningless to have BT
> support at the login prompt: it will never work, short of the user
> switching to a VT and hacking commands by hand, at which point all bets
> are off and we can assume the user will figure out a way.
> 
> Therefore I would argue we can have a workaround here, in the gdm3
> package, for now.

Have you tested the workaround from the arch wiki and can you confirm it
works?

Felipe, would appreciate your input on this. Do you think disabling
bluetooth support in the gdm PA instance is a proper fix or are the
side-effects which we need to be aware of?

-- 
Why is it that all of the instruments seeking intelligent life in the
universe are pointed away from Earth?

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