Hello,
I plugged in a C-Media soundcard in het BBB (on Ubuntu 13.04).
Everything looks ok but there is no sound. The green led is burning.
I also changed the alsa-base.conf to make the C-Media sound card the
default but that didn't work.
I did the following:
=================================================================================
Step 1:
ubuntu@arm:~$ sudo apt-get install alsa-base alsa-utils alsa-oss
Reading package lists... Done
Building dependency tree
Reading state information... Done
alsa-base is already the newest version.
alsa-utils is already the newest version.
The following NEW packages will be installed:
alsa-oss
0 upgraded, 1 newly installed, 0 to remove and 14 not upgraded.
Need to get 0 B/28.0 kB of archives.
After this operation, 112 kB of additional disk space will be used.
Do you want to continue [Y/n]? Y
Selecting previously unselected package alsa-oss.
(Reading database ... 23566 files and directories currently installed.)
Unpacking alsa-oss (from .../alsa-oss_1.0.25-1_armhf.deb) ...
Setting up alsa-oss (1.0.25-1) ...
Processing triggers for libc-bin ...
ldconfig deferred processing now taking place
ubuntu@arm:~$
=================================================================================
Step 2:
ubuntu@arm:~/media$ sudo nano /etc/modprobe.d/alsa-base.conf
...
# Keep snd-usb-audio from beeing loaded as first soundcard
options snd-usb-audio index=-2
# Set sound cards
*options snd cards-limit=2*
*alias snd-card-0 snd-black*
*alias snd-card-1 snd-cmedia*
*options snd slots=snd-cmedia,snd-black*
=================================================================================
Step 3: reboot
=================================================================================
Step 4:
ubuntu@arm:~$ alsamixer
lqqqqqqqqqqqqqqqqqqqqqqqqqqqqq AlsaMixer v1.0.25
qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqk
x Card: TI BeagleBone Black F1: Help
x
x Chip: F2: System
information x
x View: F3: Playback F4: Capture F5: All F6: Select sound
card x
x Item: Esc: Exit
x
x
x
x
x
x
x
x This sound device does not have any controls.
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
mqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqj
*The C-Media card hasn't become the default...*
F6
lqqqqqqqqqqqqqqqqqqqqqqqqqqqqq AlsaMixer v1.0.25
qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqk
x Card: TI BeagleBone Black F1: Help
x
x Chip: F2: System
information x
x View: F3: Playback F4: Capture F5: All F6: Select sound
card x
x Item: Esc: Exit
x
x
x
x
x
x
x
x This sound device does not have any controls.
x
x lqqqqqqqq Sound Card qqqqqqqqk
x
x x- (default) x
x
x x0 TI BeagleBone Black x
x
x x1 C-Media USB Headphone Setx
x
x x enter device name... x
x
x mqqqqqqqqqqqqqqqqqqqqqqqqqqqqj
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
mqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqj
Optie 1
lqqqqqqqqqqqqqqqqqqqqqqqqqqqqq AlsaMixer v1.0.25
qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqk
x Card: C-Media USB Headphone Set F1: Help
x
x Chip: USB Mixer F2: System
information x
x View: F3:[Playback] F4: Capture F5: All F6: Select sound
card x
x Item: Headphone [dB gain: -1.56, -1.56] Esc: Exit
x
x
x
x lqqk lqqk
x
x x x x x
x
x xaax x x
x
x xaax x x
x
x xaax x x
x
x xaax x x
x
x xaax xaax
x
x xaax xaax
x
x xaax xaax
x
x xaax xaax
x
x xaax xaax
x
x xaax xaax
x
x tqqu tqqu lqqk
x
x xMMx xMMx xOOx
x
x mqqj mqqj mqqj
x
x 92<>92 52
x
x < Headphone > Mic Auto Gain Control
x
mqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqj
=================================================================================
Step 3:
ubuntu@arm:~/media$ aplay chord.wav
Playing WAVE 'chord.wav' : Signed 16 bit Little Endian, Rate 44100 Hz,
Stereo
ubuntu@arm:~/media$
*Result: no sound*
=================================================================================
Step 4:
ubuntu@arm:~/media$ lsusb
Bus 001 Device 002: ID 0d8c:000c C-Media Electronics, Inc. Audio Adapter
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
ubuntu@arm:~/media$
=================================================================================
Step 5:
ubuntu@arm:~/media$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Black [TI BeagleBone Black], device 0: HDMI nxp-hdmi-hifi-0 []
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: Set [C-Media USB Headphone Set], device 0: USB Audio [USB Audio]
Subdevices: 1/1
Subdevice #0: subdevice #0
ubuntu@arm:~/media$
=================================================================================
Step 6:
ubuntu@arm:~/media$ aplay -D hw:1,0 chord.wav
Playing WAVE 'chord.wav' : Signed 16 bit Little Endian, Rate 44100 Hz,
Stereo
ubuntu@arm:~/media$
*Result: no sound*
=================================================================================
Thnx!
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