[Bug 926519] [NEW] Bluetooth teethering leaves OS in a strange state after disconnect

[Joshua Spence]

Public bug reported:

I have had this issue ever since I upgraded from Ubuntu 11.04 to Ubuntu
11.10.

I tether my iPhone 4S with my Lenovo X201 laptop in order to access the
internet. I have ticked the "Use your mobile phone as a network device
(PAN/NAP)" in the Bluetooth settings.

The iPhone appears (as expected) in the list of network connections. I
can connect to the network as expected (at least initially). However, if
I disconnect from the Bluetooth connection, then Ubuntu exhibits strange
behaviour.

The first problem is that after I disconnect from the Bluetooth
connection, I will not be able to connect to ANY network connection
(WLAN or Bluetooth) without restarting my computer. The attempts to
connect will just time out.

Secondly, after I disconnect from the Bluetooth network, the computer
will not suspend properly. Upon closing the lid of the laptop (which
would usually suspend the OS), the OS remains active and the laptop will
not sleep.

I can provide any logs required to assist with the diagnosis of the
problem.

Some further information:

$ lsb_release -rd
Description:	Ubuntu 11.10
Release:	11.10

$ apt-cache policy bluez
bluez:
  Installed: 4.96-0ubuntu4
  Candidate: 4.96-0ubuntu4
  Version table:
 *** 4.96-0ubuntu4 0
        500 http://au.archive.ubuntu.com/ubuntu/ oneiric-updates/main amd64 Packages
        100 /var/lib/dpkg/status
     4.96-0ubuntu3 0
        500 http://au.archive.ubuntu.com/ubuntu/ oneiric/main amd64 Packages
     4.91-0ubuntu1 0
        500 http://au.archive.ubuntu.com/ubuntu/ natty/main amd64 Packages

** Affects: bluez (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: bluetooth iphone tethering

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https://bugs.launchpad.net/bugs/926519

Title:
  Bluetooth teethering leaves OS in a strange state after disconnect

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