i810_audio and modprobe log errors

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I have a laptop that uses the i810_audio and AC97 codec sound drivers. Sound works fine (mostly) in both Red Hat 8 and 9. I did a clean install of Red Hat 9. However, I get odd modprobe errors in /var/log/messages every day that I don't understand:

Apr 20 08:16:52 radiant kernel: i810_audio: Audio Controller supports 6 channels.
Apr 20 08:16:52 radiant kernel: i810_audio: Defaulting to base 2 channel mode.
Apr 20 08:16:52 radiant kernel: i810_audio: Resetting connection 0
Apr 20 08:16:52 radiant kernel: ac97_codec: AC97 Audio codec, id: CRY52 (Cirrus Logic CS4299 rev D)
Apr 20 08:16:52 radiant kernel: i810_audio: AC'97 codec 0 supports AMAP, total channels = 2
Apr 20 08:16:52 radiant modprobe: modprobe: Can't locate module sound-service-0-0
Apr 20 08:16:52 radiant modprobe: modprobe: Can't locate module sound-slot-1
Apr 20 08:16:52 radiant modprobe: modprobe: Can't locate module sound-service-1-0
Apr 20 08:16:52 radiant modprobe: modprobe: Can't locate module sound-slot-1
Apr 20 08:16:52 radiant modprobe: modprobe: Can't locate module sound-service-1-0


My /etc/modules.conf looks like this (no references to sound-slot-1):
alias eth0 8139too
alias usb-controller usb-uhci
alias ieee1394-controller ohci1394
alias sound-slot-0 i810_audio
post-install sound-slot-0 /bin/aumix-minimal -f /etc/.aumixrc -L >/dev/null 2>&1 || :
pre-remove sound-slot-0 /bin/aumix-minimal -f /etc/.aumixrc -S >/dev/null 2>&1 || :


The sound works great in all apps, but once in a while, it will not initialize /dev/dsp when starting quake3, but I can just unload the kernel drivers and reload them to get it working again.

I can't figure out why it's trying to modprobe extra drivers. I could add aliases for the extra stuff in /etc/modules.conf, but I don't want to unless I understand why. I searched all the mailing lists and googled, but did not find the answer. This is not a big problem, just annoying. All help appreciated.

Best Regards,
Keith
--
LPIC-2, MCSE, N+
Droplets of yes and no in an ocean of maybe
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