[Bug 336012] Re: bluetooth network PAN fails to connect to mobile phone

[Jamie Lokier]

I sent a debugging patch to bug #268502, which installs the bluetooth
network protocol code from (Hardy's) 2.6.24 into a current Ubuntu
kernel, which makes this problem go away.  (The problem is not present
in 2.6.24 - that kernel doesn't need any of the "hcitool" commands;
"pand" is enough).

I also tried with various combinations of kernels, both USB bluetooth
drivers, and different bluez package versions, and narrowed it down.

Altogether it strongly suggests the problem is caused by a change in the
bluetooth network protocol code somehere between Hardy's 2.6.24 and
Intrepid's 2.6.27, as opposed to any of the userspace packages or
bluetooth hardware drivers.

It's possible that it's been fixed already in upstream kernels and
hasn't yet made it's way into an Ubuntu package kernel.  If so, that fix
would be good to cherrypick.  If not, some bisecting may find the cause.

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bluetooth network PAN fails to connect to mobile phone
https://bugs.launchpad.net/bugs/336012
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