Linux 3.0-rc4: regression reconnecting bluetooth headset (A2DP fails)

Linux 3.0-rc4: regression reconnecting bluetooth headset (A2DP fails)

[Jeremy Fitzhardinge]

I have a Nokia BH-905i headset.  With a stock F15 kernel, it all works
well. With current linux-2.6.git, it fails to reconnect properly.

On connection, the headphones only beep once, whereas they normally beep
twice; I think this is one beep per profile, and its only connecting HSP
and failing A2DP.  In the sound control panel, it either comes up with
"profile: off" or with the HSP/HFP (Telephony) profile rather than A2DP,
and it fails to switch if I try to change profiles via the sound control
panel.

However, if I re-pair the device from scratch each time I use it, it
connects properly and it all works fine.

pactl list shows:

Card #2
	Name: bluez_card.00_0B_E4_A6_6C_0D
	Driver: module-bluetooth-device.c
	Owner Module: 23
	Properties:
		device.description = "Nokia BH-905i"
		device.string = "00:0B:E4:A6:6C:0D"
		device.api = "bluez"
		device.class = "sound"
		device.bus = "bluetooth"
		device.form_factor = "headset"
		bluez.path = "/org/bluez/843/hci0/dev_00_0B_E4_A6_6C_0D"
		bluez.class = "0x240404"
		bluez.name = "Nokia BH-905i"
		device.icon_name = "audio-headset-bluetooth"
		device.intended_roles = "phone"
	Profiles:
		a2dp: High Fidelity Playback (A2DP) (sinks: 1, sources: 0, priority. 10)
		hsp: Telephony Duplex (HSP/HFP) (sinks: 1, sources: 1, priority. 20)
		off: Off (sinks: 0, sources: 0, priority. 0)
	Active Profile: hsp

If I try to switch profiles on the command line it says:
$ pactl set-card-profile 2 a2dp
Failure: Input/Output error

and /var/log/messages shows:
module-bluetooth-device.c: A2DP is not connected, refused to switch profile

Why isn't A2DP connecting?  How can I debug this further?

Thanks,
	J

Re: Linux 3.0-rc4: regression reconnecting bluetooth headset (A2DP fails)

[Gustavo F. Padovan]

Hi Jeremy,

* Jeremy Fitzhardinge <jeremy@goop.org> [2011-06-23 17:29:41 -0700]:

> I have a Nokia BH-905i headset.  With a stock F15 kernel, it all works
> well. With current linux-2.6.git, it fails to reconnect properly.
> 
> On connection, the headphones only beep once, whereas they normally beep
> twice; I think this is one beep per profile, and its only connecting HSP
> and failing A2DP.  In the sound control panel, it either comes up with
> "profile: off" or with the HSP/HFP (Telephony) profile rather than A2DP,
> and it fails to switch if I try to change profiles via the sound control
> panel.
> 
> However, if I re-pair the device from scratch each time I use it, it
> connects properly and it all works fine.
> 
> pactl list shows:
> 
> Card #2
> 	Name: bluez_card.00_0B_E4_A6_6C_0D
> 	Driver: module-bluetooth-device.c
> 	Owner Module: 23
> 	Properties:
> 		device.description = "Nokia BH-905i"
> 		device.string = "00:0B:E4:A6:6C:0D"
> 		device.api = "bluez"
> 		device.class = "sound"
> 		device.bus = "bluetooth"
> 		device.form_factor = "headset"
> 		bluez.path = "/org/bluez/843/hci0/dev_00_0B_E4_A6_6C_0D"
> 		bluez.class = "0x240404"
> 		bluez.name = "Nokia BH-905i"
> 		device.icon_name = "audio-headset-bluetooth"
> 		device.intended_roles = "phone"
> 	Profiles:
> 		a2dp: High Fidelity Playback (A2DP) (sinks: 1, sources: 0, priority. 10)
> 		hsp: Telephony Duplex (HSP/HFP) (sinks: 1, sources: 1, priority. 20)
> 		off: Off (sinks: 0, sources: 0, priority. 0)
> 	Active Profile: hsp
> 
> If I try to switch profiles on the command line it says:
> $ pactl set-card-profile 2 a2dp
> Failure: Input/Output error
> 
> and /var/log/messages shows:
> module-bluetooth-device.c: A2DP is not connected, refused to switch profile
> 
> Why isn't A2DP connecting?  How can I debug this further?

Can you send the output of hcidump with F15 kernel and with linux-2.6.git
kernel?

	Gustavo

Re: Linux 3.0-rc4: regression reconnecting bluetooth headset (A2DP fails)

[Jeremy Fitzhardinge]

On 06/28/2011 07:21 PM, Gustavo F. Padovan wrote:
> Hi Jeremy,
>
> * Jeremy Fitzhardinge <jeremy@goop.org> [2011-06-23 17:29:41 -0700]:
>
>> I have a Nokia BH-905i headset.  With a stock F15 kernel, it all works
>> well. With current linux-2.6.git, it fails to reconnect properly.
>>
>> On connection, the headphones only beep once, whereas they normally beep
>> twice; I think this is one beep per profile, and its only connecting HSP
>> and failing A2DP.  In the sound control panel, it either comes up with
>> "profile: off" or with the HSP/HFP (Telephony) profile rather than A2DP,
>> and it fails to switch if I try to change profiles via the sound control
>> panel.
>>
>> However, if I re-pair the device from scratch each time I use it, it
>> connects properly and it all works fine.
>>
>> pactl list shows:
>>
>> Card #2
>> 	Name: bluez_card.00_0B_E4_A6_6C_0D
>> 	Driver: module-bluetooth-device.c
>> 	Owner Module: 23
>> 	Properties:
>> 		device.description = "Nokia BH-905i"
>> 		device.string = "00:0B:E4:A6:6C:0D"
>> 		device.api = "bluez"
>> 		device.class = "sound"
>> 		device.bus = "bluetooth"
>> 		device.form_factor = "headset"
>> 		bluez.path = "/org/bluez/843/hci0/dev_00_0B_E4_A6_6C_0D"
>> 		bluez.class = "0x240404"
>> 		bluez.name = "Nokia BH-905i"
>> 		device.icon_name = "audio-headset-bluetooth"
>> 		device.intended_roles = "phone"
>> 	Profiles:
>> 		a2dp: High Fidelity Playback (A2DP) (sinks: 1, sources: 0, priority. 10)
>> 		hsp: Telephony Duplex (HSP/HFP) (sinks: 1, sources: 1, priority. 20)
>> 		off: Off (sinks: 0, sources: 0, priority. 0)
>> 	Active Profile: hsp
>>
>> If I try to switch profiles on the command line it says:
>> $ pactl set-card-profile 2 a2dp
>> Failure: Input/Output error
>>
>> and /var/log/messages shows:
>> module-bluetooth-device.c: A2DP is not connected, refused to switch profile
>>
>> Why isn't A2DP connecting?  How can I debug this further?
> Can you send the output of hcidump with F15 kernel and with linux-2.6.git
> kernel?

This is already fixed in
git://git.kernel.org/pub/scm/linux/kernel/git/padovan/bluetooth-2.6.git

Thanks,
    J

Re: Linux 3.0-rc4: regression reconnecting bluetooth headset (A2DP fails)

[Gustavo F. Padovan]

* Jeremy Fitzhardinge <jeremy@goop.org> [2011-06-28 20:47:19 +0100]:

> On 06/28/2011 07:21 PM, Gustavo F. Padovan wrote:
> > Hi Jeremy,
> >
> > * Jeremy Fitzhardinge <jeremy@goop.org> [2011-06-23 17:29:41 -0700]:
> >
> >> I have a Nokia BH-905i headset.  With a stock F15 kernel, it all works
> >> well. With current linux-2.6.git, it fails to reconnect properly.
> >>
> >> On connection, the headphones only beep once, whereas they normally beep
> >> twice; I think this is one beep per profile, and its only connecting HSP
> >> and failing A2DP.  In the sound control panel, it either comes up with
> >> "profile: off" or with the HSP/HFP (Telephony) profile rather than A2DP,
> >> and it fails to switch if I try to change profiles via the sound control
> >> panel.
> >>
> >> However, if I re-pair the device from scratch each time I use it, it
> >> connects properly and it all works fine.
> >>
> >> pactl list shows:
> >>
> >> Card #2
> >> 	Name: bluez_card.00_0B_E4_A6_6C_0D
> >> 	Driver: module-bluetooth-device.c
> >> 	Owner Module: 23
> >> 	Properties:
> >> 		device.description = "Nokia BH-905i"
> >> 		device.string = "00:0B:E4:A6:6C:0D"
> >> 		device.api = "bluez"
> >> 		device.class = "sound"
> >> 		device.bus = "bluetooth"
> >> 		device.form_factor = "headset"
> >> 		bluez.path = "/org/bluez/843/hci0/dev_00_0B_E4_A6_6C_0D"
> >> 		bluez.class = "0x240404"
> >> 		bluez.name = "Nokia BH-905i"
> >> 		device.icon_name = "audio-headset-bluetooth"
> >> 		device.intended_roles = "phone"
> >> 	Profiles:
> >> 		a2dp: High Fidelity Playback (A2DP) (sinks: 1, sources: 0, priority. 10)
> >> 		hsp: Telephony Duplex (HSP/HFP) (sinks: 1, sources: 1, priority. 20)
> >> 		off: Off (sinks: 0, sources: 0, priority. 0)
> >> 	Active Profile: hsp
> >>
> >> If I try to switch profiles on the command line it says:
> >> $ pactl set-card-profile 2 a2dp
> >> Failure: Input/Output error
> >>
> >> and /var/log/messages shows:
> >> module-bluetooth-device.c: A2DP is not connected, refused to switch profile
> >>
> >> Why isn't A2DP connecting?  How can I debug this further?
> > Can you send the output of hcidump with F15 kernel and with linux-2.6.git
> > kernel?
> 
> This is already fixed in
> git://git.kernel.org/pub/scm/linux/kernel/git/padovan/bluetooth-2.6.git

Great, these fixes will be in linus-2.6 soon.

	Gustavo

Re: Linux 3.0-rc4: regression reconnecting bluetooth headset (A2DP fails)

[Jeremy Fitzhardinge]

On 06/28/2011 01:02 PM, Gustavo F. Padovan wrote:
> * Jeremy Fitzhardinge <jeremy@goop.org> [2011-06-28 20:47:19 +0100]:
>
>> On 06/28/2011 07:21 PM, Gustavo F. Padovan wrote:
>>> Hi Jeremy,
>>>
>>> * Jeremy Fitzhardinge <jeremy@goop.org> [2011-06-23 17:29:41 -0700]:
>>>
>>>> I have a Nokia BH-905i headset.  With a stock F15 kernel, it all works
>>>> well. With current linux-2.6.git, it fails to reconnect properly.
>>>>
>>>> On connection, the headphones only beep once, whereas they normally beep
>>>> twice; I think this is one beep per profile, and its only connecting HSP
>>>> and failing A2DP.  In the sound control panel, it either comes up with
>>>> "profile: off" or with the HSP/HFP (Telephony) profile rather than A2DP,
>>>> and it fails to switch if I try to change profiles via the sound control
>>>> panel.
>>>>
>>>> However, if I re-pair the device from scratch each time I use it, it
>>>> connects properly and it all works fine.
>>>>
>>>> pactl list shows:
>>>>
>>>> Card #2
>>>> 	Name: bluez_card.00_0B_E4_A6_6C_0D
>>>> 	Driver: module-bluetooth-device.c
>>>> 	Owner Module: 23
>>>> 	Properties:
>>>> 		device.description = "Nokia BH-905i"
>>>> 		device.string = "00:0B:E4:A6:6C:0D"
>>>> 		device.api = "bluez"
>>>> 		device.class = "sound"
>>>> 		device.bus = "bluetooth"
>>>> 		device.form_factor = "headset"
>>>> 		bluez.path = "/org/bluez/843/hci0/dev_00_0B_E4_A6_6C_0D"
>>>> 		bluez.class = "0x240404"
>>>> 		bluez.name = "Nokia BH-905i"
>>>> 		device.icon_name = "audio-headset-bluetooth"
>>>> 		device.intended_roles = "phone"
>>>> 	Profiles:
>>>> 		a2dp: High Fidelity Playback (A2DP) (sinks: 1, sources: 0, priority. 10)
>>>> 		hsp: Telephony Duplex (HSP/HFP) (sinks: 1, sources: 1, priority. 20)
>>>> 		off: Off (sinks: 0, sources: 0, priority. 0)
>>>> 	Active Profile: hsp
>>>>
>>>> If I try to switch profiles on the command line it says:
>>>> $ pactl set-card-profile 2 a2dp
>>>> Failure: Input/Output error
>>>>
>>>> and /var/log/messages shows:
>>>> module-bluetooth-device.c: A2DP is not connected, refused to switch profile
>>>>
>>>> Why isn't A2DP connecting?  How can I debug this further?
>>> Can you send the output of hcidump with F15 kernel and with linux-2.6.git
>>> kernel?
>> This is already fixed in
>> git://git.kernel.org/pub/scm/linux/kernel/git/padovan/bluetooth-2.6.git
> Great, these fixes will be in linus-2.6 soon.

There seems to have been a regression since then and the release 3.0
kernel (and the F15 "2.6.40" kernel), which have gone back to showing
the original symptoms: I can use my headphones when I first pair them,
but I can't reconnect from then.

Thanks,
    J