USB Audio Detected But No Sound on Ubuntu (Solved)

After doing a fresh installation of Ubuntu 12:04, I did update and upgrade. Add some apps and tweaking in order to Ubuntu faster and more reliable.

But when it did restart, suddenly the sound was not heard again. I am trying to find the cause of this. Ensure that the USB Audio detected by Ubuntu using this command.

aplay -l

The output of the command is as follows:

**** List of PLAYBACK Hardware Devices ****
card 0: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 7: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 8: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 9: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 2: AUDIO [USB  AUDIO], device 0: USB Audio [USB Audio]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

Indicates that the actual USB Audio is detected by the system. However, the system does not select it as the default audio. Then the my task is the revamp USB Audio as the main sound card on the computer. Here is how to change the default USB audio sound card.


1. Edit the file /etc/modprobe.d/alsa-base.conf . Since this is a system file you will need to sudo to get this done. e.g.

$sudo nano /etc/modprobe.d/alsa-base.conf

2. Scroll down to the end. Now you have to change the line which says

options snd-usb-audio index=-2

to

options snd-usb-audio index=-1

Reboot and it should work.

Can Not Post or Reply a Comments on My Own Blog

Someone has been asking me something on my blog someday. And I have to answer it soon. After wrote the long answer, It won’t send and back to empty space on my comment box.

I think, it’s must be something wrong with my blog templates modification. So I change it to default template and try again. But the problem still there.

While I’m looking solution for this problem over the internet. I’ve found this because of the browser setting and it can fixed easily. I’m using Google Chrome and I think it would be same method for another browser like Mozilla or Internet Explorer.

1. On your Google Chrome goes to Setting

2. Scroll to bottom of page and click Show advance settings…

3. Click Privacy – Content Setting button

4. Uncheck Block third-party cookies and site data

5. Click Done

 

That’s all.