There is no problem of playing of sound in my computer but when it comes to recording.
alsamixer does not work giving the following error message
and amixer does not work
alsamixer: function snd_ctl_open failed for default: No such device
I tried recording with KRecord. It shows that it is recording but the file just recorded is blank, without any sound.
amixer: Mixer attach default error: No such device
aumix does not have any problem and I can control the playback volume but in aumix there is no bar for adjusting the left-right balance of the microphone.
Try running 'pkgtool' and go to setup. Configure that, reboot, and see if that works. I don't know, I might be wrong, but it worked for me when I got the error for alsamixer. I hope that helps! ;)