Re: [Bluez-devel] Successes and failures with btsco/bluez respectively

["Mike Hodson" <mystica@gmail.com>]

On 2/13/07, Brad Midgley <bmidgley@xmission.com> wrote:
> Mike
> hmm. maybe you should also try the a2dp plugin from btsco-0.5. that was
> before some pretty massive changes. We should have been tagging plugz
> but I haven't known when to tag it.
Ok, I did see that in there, but I was not sure if it was "usable" as
the ./configure/make did not  build it.

> I'm not sure on hcidump logs, but one thing that causes similar problems
> with my spider set is having my cellphone on. The spider is connected to
> both the computer and the cellphone, so it wants to be the master
> device. The computer also typically wants to be master and if you have a
> smartphone it will too. The result is a big scatternet (possibly with
> roles switching around) and extremely poor quality of delivery.

I have specifically tried this with my phone turned off, as I read
that this could cause issues as well. Literally, with no configuration
changes, no phone changes, no headset powering on/off, basically
nothing changed except a2dpd vs a2dpd2 it starts going from pausing
every few seconds to completely disconnecting.  Also, in my bluez
configuration I have explicitly denied role-switching:

 lm accept,master;
 lp hold,sniff,park;

> it's possible we somehow have the outbound and inbound avrcp connections
> going simultaneously. also, in early avrcp testing I remember seeing
> doubled-up messages from some sets that were subtly different and I
> thought I had added code to throw out the fake message.

Noted.  I shall wait for progress on this.

I have tested older a2dpd and pcm.a2dpd plugins from btsco-0.5, works
flawlessly from what I can tell.

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