Arch Linux

markus2107

Member

Registered: 2012-03-21

Posts: 50

Disabling Bluetooth and Bluedevil

Hey,

I have a Problem with Bluetooth on my MacBook Pro (7,1) running Arch / KDE.

When i disable bluetooth and resart the bluetooth daemon (/etc/rc.d/bluetooth restart),
bluetooth won't work anymore.
The bluetooth icon is still in the there, but it wont work anymore.
Neither does disabeling work, nor does it connect with or see any bluetooth devices.

rm -rf /var/lib/bluetooth

and restarting bluetooth again (/etc/rc.d/bluetooth restart) does actually help, but just as long as
i disable BT and reboot.

Note: In the past BT worked without this issue, and disabeling and reenabeling it without reboot works too!

Last edited by markus2107 (2012-08-01 08:14:55)

markus2107

Member

Registered: 2012-03-21

Posts: 50

Re: Disabling Bluetooth and Bluedevil

I think i have tracked down the problem:
- when BT is disabled and i reboot (or restart the BT daemon) the /var/lib/bluetooth10\:9A\:DD\:CE\:0E\:71/config file looks like this:

name MacBookArch-0
mode off
onmode connectable

- if BT is enabled ot mode is set to "connectable"
- so i looks like the applet doesn't get it, that BT is disabled and i cannot enable it (and therefore also not disable it)
- is there a way to set mode to "connectable" on every shutdown and to disable BT on every time i boot. As some kind of a workaround?
- what could cause this problem?

EDIT:
Maybe a

sudo hciconfig hci0 up
sudo hciconfig hci0 down

would help. I tried it out right now, and this would solve my problem. So is there a way to execute this command on every time i boot?

EDIT2:
As a workaround i created ~/.kde4/Autostart/bluetooth.sh (marked as executable)

#! /bin/bash
sleep 7
sudo hciconfig hci0 up
sudo hciconfig hci0 down

# End of file

but it doesn't really do what i want. Am i doing something wrong? Has anybody an other solution for my problem?
Would anybody answer, please?

Last edited by markus2107 (2012-07-30 09:10:41)

markus2107

Member

Registered: 2012-03-21

Posts: 50

Re: Disabling Bluetooth and Bluedevil

For some days now, im trying to get out how to fix my problem.

PLEASE, could someone help?

If no one else had such a problem before: What config files / packages could i delete / reinstall to try to get rid of this bug?

I realy know what the problem is: When i disable BT via bluedevil, "mode" in /var/lib/bluetooth/10:9A:DD:CE:0E:71/config is set to "off".
And when bluedevil starts and mode in the config file is set "off" it isn't able to control BT. If i delete the file, or set mode to "connectable" it works.

could someone please look for his /var/blib/bluetooth/aa:bb:cc:dd:ee:ff:/config and look, wheather mode is set off, when disabling bt via bluedevil,
and see if bluedevil works, if you restart it with mode "off"?

jeal

Member

Registered: 2012-08-09

Posts: 2

Re: Disabling Bluetooth and Bluedevil

hey, so... the tray not working (even after a reboot), since like two months ago was also bugging me, and i gave it a go:

daemon not running

	daemon off									daemon on	
	wireless led		/var/lib/bluetooth/*/config	hci0 state		tray reports	hci0 state	/var/lib/bluetooth/*/config	tray works?
	on			off				up			off		down		off				yes
	on			off				down			on		down		off				no
	on			connectable			down			on		up		connectable			yes
	on			connectable			up			on		up		connectable			yes
	off			off				no such device		no tray		no such device	off				no tray
	off			connectable			no such device		no tray		no such device	connectable			no tray
							
daemon running

				wireless led off					wireless led indicator on			
				off				no such device		on		down		off				no
				connectable			no such device		on		up		connectable			yes

basically, turning off the device through the tray turns /var/lib/bluetooth/*/config's mode to off, which renders it useless if the daemon restarts; while having it always on connectable gives you no trouble at all (as far as i can see).

also... if the tray is not working, bringing the interface up manually (which also turns on the /var/lib... config) solves the issue.

so... i'm thinking of setting an inmutable attribute on it, tho i haven't tested it

jeal

Member

Registered: 2012-08-09

Posts: 2

Re: Disabling Bluetooth and Bluedevil

ok, so that seems to work alright.

now, that would start the pc with bluetooth up if the device is powered on (i actually don't have separate switches for bluetooth and wifi so i can't help it)
but since that's not what i want (and neither do you i suspect) (power savings and all) what i did was to add:

hciconfig hci0 down

to my /etc/rc.local,
so there.

p.s.: i think a bug report is in order, can anyone comment if this is reproducible on their machines and/or an arch specific issue?