Most likely the lines in /etc/modules.conf are not ok.
This is due to an error in /etc/modutils/alsa which is a symlink to /etc/alsa/modutils/<ALSA-Version>.
Look into /usr/share/doc/alsa-base/examples/modules-<ALSA-Version>.conf
for an example setup.
salvaged from Wayback Machine at 2025-12-05, , original timestamp 2005-11-23