[Bluez-users] Mouse and sound in parallel

[Bluez-users] Mouse and sound in parallel

[Frank Pieczynski]

Hello,
as far as I know a CSR chip (BlueCore4 in my case) supports 7 connections in 
parallel and it works.
But: If I use btsco to transfer sound to my headset the bluetooth mouse is 
damn slow then. It still moves but it's hard to hit something.
It comes back to fast movement, if the sound ends.
Are there any configuartion hints to get a better quality of service?
Thanks
Frank


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Re: [Bluez-users] Mouse and sound in parallel

[Brad Midgley]

Frank,

I remember someone complaining about something similar around the time 
we got a2dp working. Check the -dev archives around nov 2004.

This may be different from that conversation, but you need to make sure 
your computer is not making a scatternet (master to mouse, slave to 
headset). I believe it can't communicate to both at the same time when 
this happens.

So, in /etc/bluetooth/hcid I have the link mode set:

lm accept,master;

And for my a2dp+sco headset, I cannot have it connected to the computer 
and the phone at the same time or the computer goes into scatternet mode.

Brad

Frank Pieczynski wrote:
> Hello,
> as far as I know a CSR chip (BlueCore4 in my case) supports 7 connections in 
> parallel and it works.
> But: If I use btsco to transfer sound to my headset the bluetooth mouse is 
> damn slow then. It still moves but it's hard to hit something.
> It comes back to fast movement, if the sound ends.
> Are there any configuartion hints to get a better quality of service?
> Thanks
> Frank
> 
> 
> -------------------------------------------------------
> This SF.Net email is sponsored by: NEC IT Guy Games.  How far can you shotput
> a projector? How fast can you ride your desk chair down the office luge track?
> If you want to score the big prize, get to know the little guy.  
> Play to win an NEC 61" plasma display: http://www.necitguy.com/?r=20
> _______________________________________________
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> Bluez-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/bluez-users


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Re: [Bluez-users] Mouse and sound in parallel

[Benny]

Dear Frank,

Whether there is a readymade solutions with CSR which supports 7
connections or is it your custom development?

We also working on a similar setup with SPP+Headset BT device.  We
face similar problems like data slowness/loss when we just connect the
BT device for the sco connection(btsco -f <bdaddr> <channel no.>).
Eventhough we are not playing any audio, just connecting using btsco
make the data transfer slow/data loss.

Please anyone advice.

Thanks & Regards,
Benny

On 6/5/05, Frank Pieczynski <pieczy@web.de> wrote:
> Hello,
> as far as I know a CSR chip (BlueCore4 in my case) supports 7 connections=
 in
> parallel and it works.
> But: If I use btsco to transfer sound to my headset the bluetooth mouse i=
s
> damn slow then. It still moves but it's hard to hit something.
> It comes back to fast movement, if the sound ends.
> Are there any configuartion hints to get a better quality of service?
> Thanks
> Frank


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Re: [Bluez-users] Mouse and sound in parallel

[Frank Pieczynski]

On Monday 06 June 2005 07:10, Brad Midgley wrote:
Brad,
thanks for your tip.

> This may be different from that conversation, but you need to make sure
> your computer is not making a scatternet (master to mouse, slave to
> headset). I believe it can't communicate to both at the same time when
> this happens.
>
> So, in /etc/bluetooth/hcid I have the link mode set:
>
> lm accept,master;
I added the master to my settings and restarted,
but its still the same.

>
> And for my a2dp+sco headset, I cannot have it connected to the computer
> and the phone at the same time or the computer goes into scatternet mode.
I tried only with notebook as single master, no additional devices.

Frank


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Re: [Bluez-users] Mouse and sound in parallel

[Brad Midgley]

Frank,

I couldn't find it, but I think that other discussion was about the link 
policy. My link policy is:

  lp rswitch,hold,sniff,park;

what do you have?

Brad

Frank Pieczynski wrote:
> On Monday 06 June 2005 07:10, Brad Midgley wrote:
> Brad,
> thanks for your tip.
> 
> 
>>This may be different from that conversation, but you need to make sure
>>your computer is not making a scatternet (master to mouse, slave to
>>headset). I believe it can't communicate to both at the same time when
>>this happens.
>>
>>So, in /etc/bluetooth/hcid I have the link mode set:
>>
>>lm accept,master;
> 
> I added the master to my settings and restarted,
> but its still the same.
> 
> 
>>And for my a2dp+sco headset, I cannot have it connected to the computer
>>and the phone at the same time or the computer goes into scatternet mode.
> 
> I tried only with notebook as single master, no additional devices.
> 
> Frank
> 
> 
> -------------------------------------------------------
> This SF.Net email is sponsored by: NEC IT Guy Games.  How far can you shotput
> a projector? How fast can you ride your desk chair down the office luge track?
> If you want to score the big prize, get to know the little guy.  
> Play to win an NEC 61" plasma display: http://www.necitguy.com/?r=20
> _______________________________________________
> Bluez-users mailing list
> Bluez-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/bluez-users


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Re: [Bluez-users] Mouse and sound in parallel

[Frank Pieczynski]

On Tuesday 07 June 2005 00:00, Brad Midgley wrote:

Brad,

> I couldn't find it, but I think that other discussion was about the link
> policy. My link policy is:
>
>   lp rswitch,hold,sniff,park;
>
> what do you have?

That is exactly what is defined here.
Are there any differences in mouse types?
Since my is a optical with 800dpi resolution may be its generating more 
traffic ...

I viewed also trough the messages from end of last year, but don't find 
anything helpful.

Thanks,
Frank


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