I have the following issues with btsco and Nokia HS-56W headset:
1. I have seen several reports that indicate btsco can be run as a regular
user. But I have only been able to run it as root. When I run it as a
regular user I get:
btsco v0.42
Error: control open (hw:1): No such device
Error: Can't find device. Bail
2. As a consequence of running btsco as root, the newly created sound device
cannot be seen by regular users. What udev rule should I set so that the
BT headset is seen by other users when btsco is run by root?
3. While using btsco with Skype, a lot of message like the following appear
on syslog:
kernel: snd-bt-sco: Shift problem detected! Fixing to 1.
kernel: snd-bt-sco: Shift problem detected! Fixing to 0.
What do they mean? Should I be worried about them?
4. When I hang up a call on Skype, I'm not able to place another call again.
Skype says "Problem with sound device". I need then to restart Skype in
order to be able access the BT headset again. But when the other calling
party hangs up, this problem does not occur... It seems that when I hang
up a call, the SCO channel is not cleanly disconnected. Any ideas why?
I would be grateful if someone could enlighten me on at least some of these
issues.
Mark
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Mark
> 1. I have seen several reports that indicate btsco can be run as a regular
> user. But I have only been able to run it as root. When I run it as a
> regular user I get:
> btsco v0.42
> Error: control open (hw:1): No such device
> Error: Can't find device. Bail
>
> 2. As a consequence of running btsco as root, the newly created sound device
> cannot be seen by regular users. What udev rule should I set so that the
> BT headset is seen by other users when btsco is run by root?
Maybe regular users can't initiate the kernel module load. In any case I
am accepting patches for the btsco kernel mod stuff but I will be
focusing on the pure userspace plugins myself.
> 3. While using btsco with Skype, a lot of message like the following appear
> on syslog:
> kernel: snd-bt-sco: Shift problem detected! Fixing to 1.
> kernel: snd-bt-sco: Shift problem detected! Fixing to 0.
> What do they mean? Should I be worried about them?
This is related to the sco flow control problem. If you are not getting
static, you can ignore these messages. If you are getting static, see
the kernel patches on the wiki page at
https://help.ubuntu.com/community/BluetoothAudio
brad
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