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Re: Help with USB audio card




On Tue 08 Aug 2017 at 09:38:40 (+0200), Rodolfo Medina wrote:
> David Christensen <dpchrist@xxxxxxxxxxxxxxxx> writes:
> 
> > On 08/07/17 05:15, Rodolfo Medina wrote:
> >> Hi all.
> >>
> >> I just bought an external USB audio card.  I plugged it into the USB port of
> >> my PC and plugged a 3.5mm jack microphone into the `mic' input of the card.
> >> It is shown in lsusb:
> >>
> >> $ lsusb
> >> Bus 002 Device 005: ID 17ef:602e Lenovo
> >> Bus 002 Device 003: ID 046d:c312 Logitech, Inc. DeLuxe 250 Keyboard
> >> Bus 002 Device 002: ID 0438:7900 Advanced Micro Devices, Inc.
> >> Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
> >> Bus 001 Device 010: ID 0d8c:013c C-Media Electronics, Inc. CM108 Audio Controlle

                                 ↑↑↑↑
> > Please run the following commands, and cut and past the commands and their
> > outputs into a reply:
> >
> > cat /etc/debian_version
> >
> > uname -a
> >
> > dmesg | grep -i cm108 -A 10 -B 10
> 
> 
> Thanks...
> 
> $ cat /etc/debian_version
> buster/sid
> 
> $ uname -a
> Linux lenovo 4.9.0-3-amd64 #1 SMP Debian 4.9.30-2 (2017-06-12) x86_64 GNU/Linux
> 
> `dmesg | grep -i cm108 -A 10 -B 10' produced no output at all...

Assuming dmesg is producing any output (some systems may require
root), try the address above instead (keeping the -i).

dmesg | grep -i 013c -A 10 -B 10

Cheers,
David.