i have vaio w for 3 five month. i install karmic on it use wubi everything work fine but yesterday i note that internal mic is not work. adding 'model=vaio' or model='sony' in "/etc/modprobe.d/alsa-base" are not work. in my case to make it work i have to add 'model=toshiba-s06' to that file like this
options snd-hda-intel power_save=10 power_save_controller=N model=toshiba-s06then run alsamixer in terminal change input source to 'Int DMic'.
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JP
basic networking command in unix