Conceptronic 200M (CBT200U V2.0)
Hello,
Recently, I've bought a Conceptronic 200M BT dongle, which, as far as I have learned, is also known as CBT100U V.2 USB. In contrary to its CBT100U V1.1 predecessor which AFAIK used the CSR chipset, this one has Broadcom chips.
I'm trying to connect to a Logitech headset (the one mentioned in another article because of problems with the mic mixer). I don't get any audio output at the headset. I didn't check if I can get mic audio from it. What puzzles me is that the output mixer seems to work; increasing/decreasing the output volume affects a very low noise which can be heard at high mixer levels.
Telling from btsco's -v output, the Conceptronic connects just as the other dongle does - I can't see any difference. I'd prefer to use the Conceptronic because of its small antenna which I hope will give me the 1..3 meters additional coverage I'm currently missing.
I'm using CVS btsco and the newest bluez software. Any idea what and where to look for?
Thanks,
Heike
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Quoted 4 lines · Heike C. Zimmerer
Recently, I've bought a Conceptronic 200M BT dongle, which, as far as I have learned, is also known as CBT100U V.2 USB. In contrary to its CBT100U V1.1 predecessor which AFAIK used the CSR chipset, this one has Broadcom chips.
*grr* I hate it when vendors do this, but
Quoted 3 lines
I'm trying to connect to a Logitech headset (the one mentioned in another article because of problems with the mic mixer). I don't get any audio output at the headset.
This is probably related to the chipset: If "hciconfig hci0 revision" doesn't say "SCO mapping: HCI", you are probably out of luck with this Chipset. See also the "Discussion" section on
http://bluetooth-alsa.sourceforge.net/.
Quoted 3 lines
What puzzles me is that the output mixer seems to work; increasing/decreasing the output volume affects a very low noise which can be heard at high mixer levels.
This is probably normal, as there is a secondary (rfcomm serial) channel to the headset that carries commands like Volume, Ringing (check that, should also work) and button presses.
Quoted 2 lines
Telling from btsco's -v output, the Conceptronic connects just as the other dongle does - I can't see any difference.
This is only this control connection, not the SCO voice data connection.
CU, Andy
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Quoted 3 lines · Andreas Beck
Quoted 2 lines · Heike C. Zimmerer
Recently, I've bought a Conceptronic 200M BT dongle, which, as far as I have learned, is also known as CBT100U V.2 USB.
JFTR: This should read "CBT100U V1.2 USB". And to complete confusion, a small printing on the dongle reads "CBT100U V2.0". Anyway,
Quoted 3 lines
This is probably related to the chipset: If "hciconfig hci0 revision" doesn't say "SCO mapping: HCI", you are probably out of luck with this Chipset.
it doesn't report any SCO mapping and lsusb reports "Broadcom Corp" and "BCM2034", so I'm probably really out of luck.
Maybe this is worth a note on the compatibility list since this model is mentioned there as working which isn't true any more.
Greetings,
Heike
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Heike
Quoted 2 lines
Maybe this is worth a note on the compatibility list since this model is mentioned there as working which isn't true any more.
Which list is that? I thought Marcel took down his compatibility list.
It's a good point... I think the compatibility list I last saw didn't say anything about sco/voice.
Brad
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Quoted 4 lines · Brad Midgley
Quoted 2 lines
Maybe this is worth a note on the compatibility list since this model is mentioned there as working which isn't true any more.
Which list is that? I thought Marcel took down his compatibility list.
Yes. It's the features list I was talking about
(http://www.holtmann.org/linux/bluetooth/features.html). It lists the CBT100U as using a CSR chipset which in turn lead me to believe it was fully supported.
Greetings,
Heike
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