Bluetooth/cellphone connection error [fixed]

Taki · Last edited by Taki on Sat Jan 07, 2006 2:55 pm; edited 1 time in total

wassup.

I have been trying to connect my sharp GX15 to my box using my bluetooth usb dongle. I followed the gentoo manual howto and the wiki howto and it seems everything is fine. The problem is I cannot seem to pair my ps with my phone using

jomen · Posted: Fri Jan 06, 2006 11:10 am Post subject:

Hi!

I had a similar problem just until yesterday - and was also about to ask here - but got it solved now.
Maybe this will help you...

Apparently there can be only one (as always...) -
Bluetooth-Adaptor-Name -- Bluetooth-Adaptor-Address combination be stored in the Phone.
In linux, the Name for the BT-adaptor is stored in /etc/bluetooth/hcid.conf - the standard name there
is "BlueZ (%d)"
In Windows this same adaptor gets a different name (some crypticletter combination),
when going with the defaults, that you get offered while naming and pairing your phone
with the computer/BT-dongle...
If you paired it in Windows (with some name) - it will not work in Linux (where it gets another) then
- and vice versa.

What I did was this:

I reset my phone (could not find a way to just erase the already paired BT-adaptor) - this might be
different for you - I'm using a Motorola A835 and have no manuals - so I just reset the whole thing
It then has a standard (factory-set) name and no paired devices.

Next I erased the entrys in the bluetooth-subsystem, where my phone - (all the bluetooth-devices) -
are stored by their name-address pair and the corresponding link-keys.
This is in: /var/lib/bluetooth/

Then I restarted the bluetooth-subsystem: /etc/init.d/bluetooth restart
and paired them again - do this while in an X Session, because the standard pin-helper is /usr/bin/bluepin
- which is an X-programm. There are other ways in case you are not in X
(there is a pin-helper in /etc/bluetooth/pin-helper - which can be used to do it whithout X
or any interaction on your part)

I have not doube-checked this by going back to windows and giving my BT-adaptor the same name as in Linux,
but I'm happy that it is working now - was using Windows only to do research on the issue -
but I'm quite sure that was causing these problems

This is what a failed attempt to connect to the phone looks like in the logs
- when when the link-keys dont match (caused by name-adress combination as described above)

Jan 6 00:34:43 sam pppd[9704]: pppd 2.4.2 started by root, uid 0
Jan 6 00:34:44 sam hcid[9455]: link_key_request (sba=00:02:72:B0:00:26, dba=00:0A:28:BA:AE:BD)
Jan 6 00:34:45 sam pppd[9704]: Failed to open /dev/rfcomm0: Permission denied
Jan 6 00:34:45 sam pppd[9704]: Exit.

btw: I used a diffrent procedure to get the devices paired (something like this):

hciconfig hci0 up
hcitool scan 00:0A:28:BA:AE:BD this is the adress of my phone
sdptool search DUN that was the point, where my phone wanted authentication

hope that helped you!

Cheers

Taki · Posted: Sat Jan 07, 2006 2:54 pm Post subject:

You are the man.

I had been deleting the paired device profile from the phone every time I tried to connect. When I deleted all the files from /var/lib/bluetooth, it just started working magically.

All I need to do now is set up a gprs/umts modem via bluetooth and I will never have to see windows again.

Thank a Lot.

_________________
I live a life of needles and wax.
When the needle touches the wax,
I begin to breathe.

jomen

Thanks for that...

glad I could help - after I had struggled to find out, there came the opportunity to share my new wisdom...

Cheers

edit: just in case setup of gprs/umts-modem should give trouble

I use wvdial to connect - here is the file /etc/wvdial.conf