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Old 10-25-2007, 11:22 PM   #1
mjkelly93
LQ Newbie
 
Registered: Jul 2005
Location: Shenandoah PA
Distribution: Ubuntu 5.10
Posts: 26

Rep: Reputation: 15
trying to fix usb sound, looking to change its permissions


Heres my problem. I have a usb sound card and it only sometimes, rarely, works when i boot in. Like 20% of the time when i restart it will work. lsusb always lists it, however aplay -l, does not list it.

Heres where i got so far with it. Its a bug on the ubuntu bugs page which ive posted to a few times now:
https://bugs.launchpad.net/ubuntu/+s....20/+bug/93922

I get this error when i modprobe snd-usb-audio:
FATAL: Error inserting snd_usb_audio (/lib/modules/2.6.22-14-generic/kernel/sound/usb/snd-usb-audio.ko): Unknown symbol in module, or unknown parameter (see dmesg)

Which then led me to this post after googling that error:
http://ubuntuforums.org/archive/index.php/t-18602.html
The important part:
Quote:
I talked with a friend and explained me that this could happen because of sound's permission, so I have tried with:

chmod 666 /dev/dsp*
chmod 666 /dev/mixer*

And sound was fixed.
But, there is no dsp or mixer in my /dev/ folder, so where is my usb device listed? I cant find it anywhere in /dev/ ????

dmesg said it found it and recognized it as an input device, however its not in the input folder or the usb folder?
[ 4.892000] input: USB Audio as /class/input/input2
[ 4.892000] input: USB HID v1.00 Device [USB Audio] on usb-0000:00:1d.0-1



Im not even sure if im on the right track here or not but changing a permission is a quick and easy fix. Any advice from the experts here?
 
  


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