USB/Bluetooth issue

pjo · 11-05-2008, 05:39 AM

Dear all,

I am running Xubuntu on a Dell Inspiron Desktop (not Ubuntu-bought, Vista removed)

I try to upgrade from 7.10 to 8.04, and I have the weirdest thing:
I have a bluetooth keyboard an mouse, with the dongle conveniently plugged in the back.

The first boot after upgrade, in the grub menu, everything is fine (the BT keyboard is usable to navigate the menu). Booting in Xubuntu apparently looses the bluetooth connection.

A bit of a problem, that.

But no problem, I have 4 USB slots on the front, why not try? And yes ... it works flawlessly???????
(even though it now exhibits a lot more amber lights then before ... which is indicative of a problem)
Plugging it again in the back -> stops working. The scanner that is plugged in the back does not exhibit this weird behavior. It just works.

Ideas anybody? Because it is rather annoying, and I am afraid that the dongle could be damged, or ripped of accidentally on the front ... An also, it is not very stable, it didn't work this morning ...

Regards,

Peter

pjo · 11-05-2008, 11:21 AM

Quote:

Originally Posted by pjo

Dear all,

Plugging it again in the back -> stops working. The scanner that is plugged in the back does not exhibit this weird behavior. It just works.

Ideas anybody? Because it is rather annoying, and I am afraid that the dongle could be damged, or ripped of accidentally on the front ... An also, it is not very stable, it didn't work this morning ...

Regards,

Peter

researching it a little bit, if I just unplug and replug the dongle it seems to work as well ...

so I looked for that behavior, found some tutorials, solutions whick all start with fining the MAC adress, but:

Quote:

desk2:/etc/bluetooth$ hcitool scan
Device is not available: No such device

on the other hand:

Quote:

desk2:/etc/bluetooth$ lsusb
Bus 007 Device 001: ID 0000:0000
Bus 008 Device 003: ID 0644:0200 TEAC Corp.
Bus 008 Device 001: ID 0000:0000
Bus 006 Device 001: ID 0000:0000
Bus 005 Device 008: ID 046d:c70a Logitech, Inc.
Bus 005 Device 007: ID 046d:c70e Logitech, Inc.
Bus 005 Device 006: ID 046d:0b02 Logitech, Inc. BT Mini-Receiver (HID proxy mode)
Bus 005 Device 001: ID 0000:0000
Bus 004 Device 001: ID 0000:0000
Bus 003 Device 004: ID 04a9:220e Canon, Inc. CanoScan N1240U/LiDE 30
Bus 003 Device 001: ID 0000:0000
Bus 002 Device 001: ID 0000:0000
Bus 001 Device 001: ID 0000:0000

Note that all the above is typed on the BT keyboard, the device "No such" ??????????

Peter

pjo · 11-05-2008, 12:34 PM

Strange ...

It works flawlessly if I unplug the dongle and replug it after boot (everything works fine with the grub menu)

hcitool scan does not return anything

disabling sdptool does not help

How can I get my keyb and mouse to work without un?replugging the dongle???

Thx

Peter

fragos · 11-05-2008, 03:58 PM

Just a note: lsusb only indicates that the USB hardware sees your device, even if there is no driver for it. "hcitool scan" will only see devices that have enabled discovery. Phones in particular will automatically turn discovery off so that new devices can't see them. Paired devices will work even if discovery is off.

pjo · 11-06-2008, 01:38 AM

Quote:

Originally Posted by fragos

Just a note: lsusb only indicates that the USB hardware sees your device, even if there is no driver for it. "hcitool scan" will only see devices that have enabled discovery. Phones in particular will automatically turn discovery off so that new devices can't see them. Paired devices will work even if discovery is off.

any ideas on how I could then discover the mac address of the keyboard and mouse to force them to be connected on login? or rather, after startup? Again, the oddity is that the grub menu has them perfectly connected and functional, so it is during the startup of the chosen kernel that things get blocked (my guess: overwritten/reconnected/ whatever in an unproper way) which is obviously easily resolved by unplugging/replugging the dongle.

I must mention also that it occurred after the transition from 7.10 to 8.04, in 7.10 it had always worked flawlessly.

Peter