Re: Headset not playing audio HELP PLEASE

On Fri, 15 Feb 2008, pramod gurav wrote:

-> I just tried changing some lines in /usr/src/linux/net/bluetooth/hci_event.c
-> and compiled the kernel..

You can't just change values unless you know kernel/bluetooth programming ;)


-> SCO MTU: 64:8 this has changed 
-> but new problem is hwen I press button on HS link req comes but the connection is different this time
-> [root@localhost Pramod]# hcitool conn
-> Connections:
->         > ACL 00:0F:DE:B1:02:42 handle 0 state 2 lm SLAVE
-> previously it used to be as
-> ->

That's what mine looks like before I press the button- then it does the 
pass/auth step.


-> [Pramod@localhost ~]$ aplay -D bluetooth -f S16_LE test.raw
-> there is a long wait and connections are
-> [root@localhost Pramod]# hcitool conn
-> Connections:
->         > ACL 00:0F:DE:B1:02:43 handle 0 state 2 lm SLAVE 
->         < ACL 00:0F:DE:B1:02:42 handle 0 state 5 lm MASTER
-> 
->  00:0F:DE:B1:02:43 this is not my HS address(there is no other device near here)
-> 00:0F:DE:B1:02:42 this one is mine.

That's odd. Never saw a second address like that before...

-> planning to recompile the kernel with original hci_event.c

According to the Gentoo Wiki, your HS does work with modern kernel/bluez. BTW, 
last time when everything looked right but you didn't hear anything, did you 
remember to turn up the alsa sound? When I reboot, alsa is always set to 0. I 
use rexima/aumix to turn up the volumn. That's a common oversight. Other than 
that, I really don't know why it's working.

-> As you said there might be a incompatibility issues in one of them(HS/dongle)

The headset seems OK, from the wiki. You might look up the dongle, if you 
didn't already.


-> Can it happen that I might require to play the audio with certain frequency, rate or parameters which are supported by my HS(Its a Sony Ericsson HBH-602)?

Not totally sure, but mine didn't require them. I'm assuming it used the 
defaults in that case.


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