blueman-applet crashed with KeyError in card_cb(): 'bluez.path'

[Ron Bakker]

[IMPACT]
Changing pulseaudio settings (audio profiles, via the Sound applet or any other mixer application), as well as connecting headphones on cards with jack-sensing cause blueman-applet to crash. It's catching all pulseaudio events and tries to grab the bluez path even for devices that aren't bluetooth devices.

The upload applies a simple patch to check for the existence of the bluez.path property in the device properties; which is only available on bluetooth devices, prior to trying to access it, thus avoiding a crash due to an attempt to access invalid data.

[TESTCASE]
1) Connect headphones to the computer.

This requires systems with jack-sensing, but is the most obvious reproducer. Alternatively:

1) Open Sound properties
2) Switch to the Output tab.
3) Select a device and change the value for the Mode: drop-down if available, on a device other than the bluetooth headset.

[Regression Potential]
Possible regressions could include other bugs related to handling the bluetooth headset audio profile changes (from HSP/HFP to A2DP for example) surfacing due to the fact that blueman-applet no longer crashes as soon as non-bluetooth devices are changed in any way.

===

Step to reproduce:
Plug in or unplug headphones

Does it after every boot.
System runs stabel.....

ProblemType: CrashDistroRelease: Ubuntu 12.04
Package: blueman 1.23-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-20.32-generic 3.2.12
Uname: Linux 3.2.0-20-generic x86_64
ApportVersion: 1.94.1-0ubuntu2
Architecture: amd64
CrashCounter: 1
Date: Thu Mar 22 20:04:45 2012
ExecutablePath: /usr/bin/blueman-applet
InstallationMedia: Xubuntu 12.04 "Precise Pangolin" - Alpha amd64 (20120204)
InterpreterPath: /usr/bin/python2.7
ProcCmdline: /usr/bin/python /usr/bin/blueman-applet
PythonArgs: ['/usr/bin/blueman-applet']SourcePackage: blueman
Title: blueman-applet crashed with KeyError in card_cb(): 'bluez.path'
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin mythtv netdev plugdev sambashare sudo www-data

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Gastón Avila (avila-gas)]

trigered on plugging in a microphone to a dell inspiron 1501.

[kolleykibber (fergus-f)]

Triggered on removing headphone jack from Toshiba NB520

[Roger Searjeant (roger-searjeant)]

Triggered on removing headphones from jack socket, on Samsung RF511.

[UncleV (vkulich)]

Triggered on opening Sound properties. (The system has been upgraded from 10.04).

[Nelson (nelson-stevenson)]

Triggered on both plugging and removing headphones from jack socket, on Sony VAIO VPCSB

[Lokard (darkdadaah)]

This happen to me when I switch between several users. No headphones plugged in. (on 12.10 upgraded from 11.10)

[Trevor W. (pyraz)]

This is happening when I connect to an external bluetooth speaker. The speaker still works fine though, which is the weird part.

[Darkwarfighter (overlord)]

Triggered on connecting and removing headphones from jack socket on Samsung NC10.

[Guilherme Marçal (ogabiefofo)]

Deu esse erro repentinamente

[nicholasC (njc093)]

Triggered when going to 'sound settings/Volume Control' and setting under 'Configuration', changing Digital Stereo (HDMI) Audio --> Off. Xubuntu 12.04. HP dm1z-3200.

[col reilly (lupinehorror)]

disabled hdmi output in sound settings. using xfce 4.10.

[Sebastien Bacher (seb128)]

the bug is one of the most reported one on error.ubuntu.com ... do we have a blueman maintainer there?

[col reilly (lupinehorror)]

back again. changed refresh rate of my flat panel in settings. how can that have anything to do with blueman??

[Jonathan Bohren (jonathan-bohren)]

Triggered when connecting headphone to Lenovo X230t.

[Ghislain Vaillant (ghisvail)]

Triggered on connecting or removing headphones on my Samsung NC10

[Mathieu Trudel-Lapierre (cyphermox)]

Blueman is bluetooth stuff; I'll look into the bug :)

[Launchpad Janitor (janitor)]

This bug was fixed in the package blueman - 1.23-0ubuntu3

---------------
blueman (1.23-0ubuntu3) quantal; urgency=low

  * debian/patches/02_dont_crash_on_non-bluetooth_card.patch: do not crash when
    receiving events from PulseAudio for non-bluetooth cards. (LP: #962469)
 -- Mathieu Trudel-Lapierre <email address hidden> Wed, 08 Aug 2012 13:49:37 -0400

[Ghislain Vaillant (ghisvail)]

Merci Mathieu

[vaughan (vaughan-montgomery)]

triggered when i changed resolution on Dell Studio 1737 laptop, accidentally unticked the 'use this display' for both the laptop screen & external HDMI display. resulting in not being able to view desktop on either screen as both were disabled.

[Micah Gersten (micahg)]

I just plugged in my headphones before and after the proposed update. Before I got an apport crash, after I did not.

[Adam Conrad (adconrad)]

The verification of this Stable Release Update has completed successfully and the package has now been released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regresssions.

[Launchpad Janitor (janitor)]

This bug was fixed in the package blueman - 1.23-0ubuntu2.1

---------------
blueman (1.23-0ubuntu2.1) precise-proposed; urgency=low

  * debian/patches/02_dont_crash_on_non-bluetooth_card.patch: do not crash when
    receiving events from PulseAudio for non-bluetooth cards. (LP: #962469)
 -- Mathieu Trudel-Lapierre <email address hidden> Wed, 08 Aug 2012 13:49:37 -0400

[[e-mail] (gpscruise)]

my sony vaio microphone no longer works. Not sure how to report it. Thanks for looking...

[Micah Gersten (micahg)]

@gpscruise
That's most likely a different issue unless your microphone is a bluetooth one. Please report a new bug with:
ubuntu-bug linux

[[e-mail] (gpscruise)]

Thanks Micah.
I lucked out.
I turned on Sound-Recorder and my microphone started working.
Thanks! Happy security work!
-jim

[ladykaoru (ladykaoru)]

multiples problems related with this, pulseaudio and alsa. Every time i start my computer, i have to reinstall all the alsa plugins and software to have sound. i have a netbook with xubuntu 12.04 precise and a intel card

[Vinaykumar (vinayshirur-byd)]

tnx

[Sven Neuhaus (sven0)]

Had the blueman-applet crash on me today just by walking out of bluetooth range while audio was playing.

[Ｖ字龍(Vdragon) (vdragon)]

I wondered if this bug still affect 13.10
I got a bluman-applet crash and apport bring me to this specific bug...