The classic bug sound tester is to run the following commands:

- "lspcidrake -v | fgrep -i AUDIO" will tell you which driver your card uses by default
- "grep sound-slot /etc/modprobe.conf" will tell you what driver it currently uses
- "/sbin/lsmod" will enable you to check if its module (driver) is loaded or not
- "/sbin/chkconfig --list sound" and "/sbin/chkconfig --list alsa" will tell you if sound and alsa services are configured to be run on initlevel 3
- "aumix -q" will tell you if the sound volume is muted or not
- "/sbin/fuser -v /dev/dsp" will tell which program uses the sound card.