[alsa-devel] humming sound/distorted sound

Takashi Iwai tiwai at suse.de
Mon Jul 30 22:11:19 CEST 2007

At Mon, 30 Jul 2007 15:48:25 +0530,
Hemanth Kumar wrote:
> Hi All,
>                I am new to alsa , I am using the Texas Instrument Davinci
> Board (ARM arch) with linux-2.6.10 with alsa lib 1.0.6,
>                ALSA was working fine the sound was good,Then I changed the
> kernel to 2.6.20 with out changeing the alsa lib
>                no when play sound I get humming sound/distorted sound I have
> few question,

The ALSA kernel API hasn't been changed much for years.  So, I don't
know what kind of regression you have regarding the driver.

Do you keep the same alsa-lib binary but change only the kernel?

>    1 .Does I need to change the alsa lib also


>    2 .Does I need to change/ Select addtional option's in kernel(I have
> copied the linux-2.6.10/.config file to linux-2.6.20)

Yes, likely.  2.6.10 and 2.6.20 are quite different.  The ALSA
kconfigs haven't much changed but many other are.


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