post the output of
cat /proc/asound/card0/intel8x0
check whether bit 0 of the global status of your ich controller change when you enable js interrupt by set js1 mode of ac97 registers using echo
post the output of
cat /proc/asound/ card0/intel8x0
check whether bit 0 of the global status of your ich controller change when you enable js interrupt by set js1 mode of ac97 registers using echo