[alsa-devel] humming sound/distorted sound

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,

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)

Can any please point me where I went wrong