Linux Audio/MIDI System Setup http://tapas.affenbande.org/wordpress/?page_id=40 make sure you check in /proc/interrupts what’s your IRQ num. audio card chrt -f -p 82 `pidof “IRQ-4″` rtc chrt -f -p 98 `pidof “IRQ-8″` echo 8192 > /proc/sys/dev/rtc/max-user-freq