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

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

> On 06/28/2011 07:21 PM, Gustavo F. Padovan wrote:
> > Hi Jeremy,
> >
> > * Jeremy Fitzhardinge <jeremy@xxxxxxxx> [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
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