Bluetooth - switching on-off causes kernel panic (solved)

[nixus]

Hey there,

When I first installed PCLinuxOS in July my Bluetooth adapter was recognized properly. After a while I always had to manually switch it off and on again to activate it after booting my laptop. Which was annoying but at least it worked. Since yesterday switching off and on causes kernel panic and my Bluetooth adapter is not recognized after booting

My system is fully updated and I installed following packages before the problem started:
gnokii (0.6.27-7pclos2010)
gnokii-xgnokii (0.6.27-7pclos2010)
libcfitsio0 (3.280-1pclos2011)
libgdal1 (1.9.0-1pclos2012)
libgeos3 (3.3.1-1pclos2011)
libgeos_c1 (3.3.1-1pclos2011)
libgnokii4 (0.6.27-7pclos2010)
libgsl0 (1.15-1pclos2011)
libhdf5_7 (1.8.7-1pclos2011)
libhdf5_hl7 (1.8.7-1pclos2011)
liblwgeom1 (1.3.6-1pclos2010)
libnetcdf7 (4.1.3-1pclos2011)
libogdi3 (3.2.0-0.beta2.1pclos2011)
libopensync-plugin-gnokii (0.22-4pclos2010)
libopensync0 (0.22-5pclos2010)
libpq8.4_5 (8.4.2-2pclos2010)
libproj0 (4.7.0-2pclos2011)
libunixODBC1 (2.3.0-1pclos2011)
libxerces-c3.1 (3.1.1-1pclos2011)
postgis (1.3.6-1pclos2010)
postgresql8.4 (8.4.2-2pclos2010)
postgresql8.4-plpgsql (8.4.2-2pclos2010)
postgresql8.4-server (8.4.2-2pclos2010)
proj (4.7.0-2pclos2011)
python-biopython (1.58-1pclos2011pclos2011)
python-biopython-sql (1.58-1pclos2011pclos2011)
python-egenix-mx-base (3.1.3-2pclos2010)
python-mysql (1.2.3c1-2pclos2010)
python-psycopg2 (2.4.2-1pclos2011)
qgis (1.7.3-1pclos2012)
qgis-python (1.7.3-1pclos2012)
qgis-theme-gis (1.7.1-1pclos2011)
wise (2.2.0-2pclos2011)

and uninstalled because not working:
gnokii (0.6.27-7pclos2010)
gnokii-xgnokii (0.6.27-7pclos2010)
libgnokii4 (0.6.27-7pclos2010)
libopensync-plugin-gnokii (0.22-4pclos2010)

My laptop is a HP ProBook 6450b which has a soft-touch button to manually turn Bluetooth on and off.
I use the 2.6.38.8-pclos3.pae.bfs kernel from the repos.

Thanks for any advice and ideas,
nixus

[AS]

Hey there,

When I first installed PCLinuxOS in July my Bluetooth adapter was recognized properly. After a while I always had to manually switch it off and on again to activate it after booting my laptop.

The next time that should happen, please verify if the daemon bluetoothd is running: from a terminal type

Code: [Select]

ps -ef | grep bluetoothdif it is not running, try to launch it:

Code: [Select]

/sbin/bluetoothd &

Which was annoying but at least it worked. Since yesterday switching off and on causes kernel panic and my Bluetooth adapter is not recognized after booting

try to look in /var/log/messages, /var/log/syslog, /var/log/dmesg, /var/log/dmesg.old for panic log messages ...

Also, instead of switch bluetooth on/off, try to install and use rfkill

AS

[nixus]

Thank you AS!!

this is what I got:

Code: [Select]

[dummy@dummyHP ~]$ ps -ef | grep bluetoothd
500      15545 15500  0 12:51 pts/1    00:00:00 grep --color [color=red]bluetoothd[/color]
[dummy@dummyHP ~]$ /sbin/bluetoothd &
[1] 16125
[dummy@dummyHP ~]$

not sure what it means, however it didn't turn on Bluetooth.

will check the log files later.

regards,
nixus

[AS]

Code: [Select]

[dummy@dummyHP ~]$ ps -ef | grep bluetoothd
500      15545 15500  0 12:51 pts/1    00:00:00 grep --color [color=red]bluetoothd[/color]
[dummy@dummyHP ~]$ /sbin/bluetoothd &
[1] 16125
[dummy@dummyHP ~]$not sure what it means, however it didn't turn on Bluetooth.

It means that bluetoothd wasn't running ... I assumed you are running KDE ...
try rfkill, basic commands:

Code: [Select]

rfkill list
rfkill unblock all

[nixus]

Yes I am running KDE

This it what I get:

Code: [Select]

[dummy@dummyHP ~]$ rfkill list
0: hci0: Bluetooth
        Soft blocked: no
        Hard blocked: no
[dummy@dummyHP ~]$ rfkill unblock all
[dummy@dummyHP ~]$ rfkill list
0: hci0: Bluetooth
        Soft blocked: no
        Hard blocked: no


[nixus]

I kind of solved it. I managed to switch off Bluetooth during boot-up and interestingly it doesn't cause kernel panic when I, once PCLOS is booted, switch it on. I can without any problems turn it on and off and on and off. However when Bluetooth is activated (at least as indicated by a light) during boot-up, the adapter is not recognized and it causes kernel panic when switched off and on again as mentioned in a previous post. So obviously this is specifically linked to this soft-touch key of my HP laptop.

In this sense I always have to make sure that Bluetooth is switched off when I turn off my Computer ;-)

Thanks for your advice anyway.

regards,
nixus

[AS]

I kind of solved it. I managed to switch off Bluetooth during boot-up and interestingly it doesn't cause kernel panic when I, once PCLOS is booted, switch it on. I can without any problems turn it on and off and on and off. However when Bluetooth is activated (at least as indicated by a light) during boot-up, the adapter is not recognized and it causes kernel panic when switched off and on again as mentioned in a previous post. So obviously this is specifically linked to this soft-touch key of my HP laptop.

In this sense I always have to make sure that Bluetooth is switched off when I turn off my Computer ;-)

Thanks for your advice anyway.

regards,
nixus

Glad you have found at least a workaround. 
The symptoms you describe let me think at some kernel module, specific to your bluetooth adapter, that could be the cause of the kernel panic. You should identify your hardware and the related modules, eventually other users using the same hardware may confirm (or not) the same behavior ... eventually a solutions.

AS

[nixus]

Thanks AS

I just post the hardware info of the Bluetooth adapter for further reference:

Broadcom Corp
HP Integrated Module
Wireless|Radio Frequency|Bluetooth
Bus: ‎USB
Bus PCI #: ‎1
PCI-Gerät #: ‎7
ID: ‎0x03f0
ID: ‎0x231d
Others
Module: ‎btusb