2007-09-18 11:22:23

by Olivier Le Pogam

Subject: [Bluez-devel] Bluetooth / WiFi USB concurrency issue

Hello,

I have a bluetooth device on a USB slot and a WiFi device on another USB
slot, and my mini-ATX PC (Ubuntu 7.04 kernel 2.6.30
Bluez 3.9) is connected to the network thanks to the WiFi/DHCP.

I have noticed that when a scan (sdptool) is performed, the network link (if
I perform a simple "wget" for example) is either slowed down or interrupted
(not sure) and carried one / completed once the scan is finished. On a
former kernel / bluez it was simply crashed and I had to up/down the
bluetooth device.

Do you have any idea why this weird thing happens ?

Thanks a lot,
Oli


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2007-09-18 11:40:57

by Fabien Chevalier

Subject: Re: [Bluez-devel] Bluetooth / WiFi USB concurrency issue

Hello Olivier,

What you experience is bluetooth/wifi coexistence issues.
Your wifi chip must have bt coexistence support in order to work when
their is some bt activity.

Cheers,

Fabien

> Hello,
>
> I have a bluetooth device on a USB slot and a WiFi device on another USB
> slot, and my mini-ATX PC (Ubuntu 7.04 kernel 2.6.30
> Bluez 3.9) is connected to the network thanks to the WiFi/DHCP.
>
> I have noticed that when a scan (sdptool) is performed, the network link (if
> I perform a simple "wget" for example) is either slowed down or interrupted
> (not sure) and carried one / completed once the scan is finished. On a
> former kernel / bluez it was simply crashed and I had to up/down the
> bluetooth device.
>
> Do you have any idea why this weird thing happens ?
>
> Thanks a lot,
> Oli
>
>
> -------------------------------------------------------------------------
> This SF.net email is sponsored by: Microsoft
> Defy all challenges. Microsoft(R) Visual Studio 2005.
> http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
> _______________________________________________
> Bluez-devel mailing list
> [email protected]
> https://lists.sourceforge.net/lists/listinfo/bluez-devel
>
>


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