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fbarboza 12-08-2012 11:44 AM

problems with audio card C-Media Electronics Inc CM8738
hi guys,

i have no sound on my desktop and i have been trying to put it to work, but i can't. any help would be appreciate.

i have the following audio card:
03:02.0 Multimedia audio controller: C-Media Electronics Inc CM8738 (rev 10)
Subsystem: C-Media Electronics Inc CMI8738/C3DX PCI Audio Device
Flags: bus master, medium devsel, latency 32, IRQ 6
I/O ports at e800 [size=256]
Capabilities: <access denied>
Kernel modules: snd-cmipci

$ uname -a
Linux freddy-desktop 3.2.0-34-generic-pae #53-Ubuntu SMP Thu Nov 15 11:11:12 UTC 2012 i686 i686 i386 GNU/Linux

Ubuntu 12.04.1 LTS \n \l

and ihave been trying everything with no success.
in my sound settings i have a dummy card.

i have already disabled the onboard audio card.

please any help..


posix04 12-09-2012 06:48 AM

Type this command:


and check if your user is into audio group.
If it isn't, add it by the command:


sudo adduser your-user audio
At the next Login, the sound should work.

fbarboza 12-25-2012 10:30 PM

hi posix04,

i already did that, and my username is in that list,

freddy@freddy-desktop:~$ groups
freddy adm cdrom sudo audio dip plugdev lpadmin pulse pulse-access sambashare

rebooted the machine and still is not working.

Also, there is no /proc/asound directory created by default, so my ubuntu is not recognizing my external audio card, eventhoug i have already disabled on the BIOS the internal one.

my sound preferences shows a dummy card, and i have no sound at all..

any other help, tip, would be appreciate.


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