Ask Ubuntu is a question and answer site for Ubuntu users and developers. It's 100% free.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

After installing 12.04 Precise on my PC, I have encountered some problems with audio output which did no occur when using Lucid.

The sound is choppy and distorted in the lower tones. As I have no experience in setting/testing and doing anything with Audio Devices, I need help even to diagnose the problem.


$ sudo lshw -c multimedia


       description: Audio device
       product: Radeon X1200 Series Audio Controller
       vendor: Hynix Semiconductor (Hyundai Electronics)
       physical id: 5.2
       bus info: pci@0000:01:05.2
       version: 00
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi bus_master cap_list
       configuration: driver=snd_hda_intel latency=32
       resources: irq:19 memory:fdafc000-fdafffff
       description: Audio device
       product: SBx00 Azalia (Intel HDA)
       vendor: Hynix Semiconductor (Hyundai Electronics)
       physical id: 14.2
       bus info: pci@0000:00:14.2
       version: 00
       width: 64 bits
       clock: 33MHz
       capabilities: pm bus_master cap_list
       configuration: driver=snd_hda_intel latency=32
       resources: irq:16 memory:fe024000-fe027fff

Update 2

It has something to do with the volume. If the audio is quiet it is not choppy, if the sound is loud then it begins to be choppy.

share|improve this question
Sorry, what do you mean by "low range"? Doesn't the choppiness and distortion affect all audio? – izx May 17 '12 at 8:21
The sound is choppy in general, and distorted for low range tones only. For me it seems like some buffering problem, or something similar. – Misery May 17 '12 at 8:23
Please update question with pastebin of sudo lshw -c multimedia. – izx May 17 '12 at 8:29
I have this same problem... bassy sounds cause chopping/stuttering of playback in videos/audio. turning the volume down low reduces the choppiness. I can't listen to mp3 or watch vlc without sound freaking out. (snd_hda_intel driver for 6/C200 series Intel) – beanaroo May 18 '12 at 10:05
up vote 7 down vote accepted

Misery, I seem to have found a solution on my system using the same driver (different audio device though)

  1. Open Terminal: gksudo gedit /etc/modprobe.d/alsa-base.conf
  2. Add the following line:

    options snd-hda-intel model=generic
  3. Restart System

My audio seems to be working fine now. Full volume, flash content, videos, audio files. Let us know if it helps.

Credit goes to Adityeah

share|improve this answer
it did the thing :] – Misery May 21 '12 at 7:07
This has not helped me get sound working correctly in Steam. (For future Googlers) – earthmeLon Nov 15 '13 at 18:32
@earthmeLon This solution is for a problem that is system-wide. Not limited to one application. Sorry. – beanaroo Nov 17 '13 at 8:43
hey this did not worked for me ? i have intel i5 2nd generation Dell with IDT speakers – edward torvalds Nov 15 '14 at 13:28

A possible solution is disabling "auto-mute" in alsamixer. It is used when the "switch-to-headphone-and-back-again" bug occurs (in high volumes mainly).

First, open your terminal, or press:


Then, type and hit "enter":

$ alsamixer

This screen will show up:

Alsa mixer screen in terminal

Use the right arrow until you select "Auto-Mute"

Next, press the down arrow to set it do "Disable" (see the text above it).

Finally, press Esc to apply and exit

That's it.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.