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I don't hear any sound from my os Ubuntu on my lap hp 15 notebook pc . what is its reason ?

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  • the sound icon in the taskbar above,click there and see it is mute or not. Sep 21, 2014 at 6:26
  • The mute is not ticked! Sep 21, 2014 at 6:27
  • Increase the volume to see the sound is not coming or not,then see if your system is recognizing your sound card or not by "sudo aplay -l" Sep 21, 2014 at 6:38
  • try askubuntu.com/a/230893/283843 Sep 21, 2014 at 6:56
  • How about headphones, do they work for you?!
    – v2r
    Sep 21, 2014 at 10:57

1 Answer 1

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First step, just to verify, check if the sound is not muted. Once you verify this, go to
Sound Settings:

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In the Sound Settings, you’ll find that you have practically nothing here except a dummy output. Quite frustrating. It means that your sound card is not even recognized. Puff!

enter image description here

No worries. The one shot solution which fixed the sound problem for me on my Intel powered Dell Inspiron N4010 is to force reload Alsa. To do that, use the following command in terminal (Ctrl+Alt+T):

sudo alsa force-reload

The output will be like this.

enter image description here

You may think that it is hanged or still in processing but it takes only couple of seconds. You can simply close it afterwards by using Ctrl+C. Now, you need to reboot your computer. If at the next start up, you hear the login sound at the lock screen, you know it worked like a charm.

enter image description here

First Alternate method to fix no sound in Ubuntu 14.04:

If the above problem did not fix it for you, try reinstalling Alsa and Pulse audio in the following manner:

sudo apt-get remove --purge alsa-base pulseaudio
sudo apt-get install alsa-base pulseaudio

And force reload Alsa again:

sudo alsa force-reload

Restart and enjoy the world of sound, again.

Second Alternate method to fix no sound in Ubuntu 14.04:

Open the terminal and edit speech-dispatcher file by using the following command:

sudo gedit /etc/default/speech-dispatcher

In here, change RUN=yes to RUN=no

Reboot and enjoy sound.

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