Begin forwarded message:

Date: Thu, 1 Mar 2007 03:49:59 -0800
From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Subject: [Bugme-new] [Bug 8104] New: kernel floods console with 
"connect-debounce failed"


http://bugzilla.kernel.org/show_bug.cgi?id=8104

           Summary: kernel floods console with "connect-debounce failed"
    Kernel Version: 2.6.20-1
            Status: NEW
          Severity: normal
             Owner: [EMAIL PROTECTED]
         Submitter: [EMAIL PROTECTED]


Most recent kernel where this bug did *NOT* occur: 2.6.17
Distribution: ubuntu 7.04
Hardware Environment: fujitsu amilo pro v3205
Problem Description:

I recently installed ubuntu feisty (linux-2.6.20) on a Fujitsu Siemens
Amilo pro v3205. Even during installation my console was flooded with
hundreds of:

[ ???.??????] hub 5-0:1.0: connect-debounce failed, port 6 disabled

The problem didn't go away after installation and logs got flooded with
the message too:

[EMAIL PROTECTED]:~$ grep debounce /var/log/syslog|wc -l
1621

After some googling I discovered this is probably caused by the onboard
usb bluetooth receveir: if I disable then re-enable it with the keyboard
switch the message goes away. If I boot the laptop with BT disabled,
then I enable it the message doesn't appear at all in the kernel logs.
Everything was fine on the same hardware with 2.6.17 on edgy.
Note that the bluetooth receiver does not work until I do this trick.

e.g:
[EMAIL PROTECTED]:~$ hcitool scan
Device is not available: No such device

The logs attached refer to an ubuntu patched 2.6.20 but tried also
2.6.20-1 and 2.6.19-4 vanilla and the problem is still there.
I tried with an external usb dongle aswell and it worked fine.

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