I downloaded and installed the alsa-driver-0.5.11, alsa-lib-0.5.10 and alsa-utils-0.5.10. I think the compilation went ok since I got the message that says all modules successfully compiled. When I install the driver, I get this message.
 
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depmod: *** Unresolved symbols in
/lib/modules/2.4.2-2/misc/snd-card-ali5451.o
depmod: *** Unresolved symbols in
/lib/modules/2.4.2-2/misc/snd-card-cmipci.o
depmod: *** Unresolved symbols in
/lib/modules/2.4.2-2/misc/snd-card-cs4281.o
depmod: *** Unresolved symbols in
/lib/modules/2.4.2-2/misc/snd-card-maestro3.o
depmod: *** Unresolved symbols in
/lib/modules/2.4.2-2/misc/snd-card-mozart.o
depmod: *** Unresolved symbols in
/lib/modules/2.4.2-2/misc/snd-card-nm256.o
depmod: *** Unresolved symbols in
/lib/modules/2.4.2-2/misc/snd-card-opl3sa2.o
depmod: *** Unresolved symbols in
/lib/modules/2.4.2-2/misc/snd-card-sgalaxy.o
depmod: *** Unresolved symbols in
/lib/modules/2.4.2-2/misc/snd-card-via686a.o
depmod: *** Unresolved symbols in
/lib/modules/2.4.2-2/misc/snd-card-via8233.o
depmod: *** Unresolved symbols in /lib/modules/2.4.2-2/misc/snd-ens1370.o
depmod: *** Unresolved symbols in /lib/modules/2.4.2-2/misc/snd-ens1371.o
depmod: *** Unresolved symbols in /lib/modules/2.4.2-2/misc/snd-ice1712.o
depmod: *** Unresolved symbols in /lib/modules/2.4.2-2/misc/snd-intel8x0.o
depmod: *** Unresolved symbols in
/lib/modules/2.4.2-2/misc/snd-seq-virmidi.o
depmod: *** Unresolved symbols in /lib/modules/2.4.2-2/misc/snd-seq.o
depmod: *** Unresolved symbols in
/lib/modules/2.4.2-2/misc/snd-wavefront-synth.o

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As far as I am concerned, I am using Intel8x0 (i815) AC97 motherboard. and the snd_intel8x0 is among oneof the items in the above message. I set my modules.conf as below
 
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alias char-major-116 snd
alias char-major-14 soundcore
alias snd-card-0 snd-card-intel8x0
alias sound-slot-0 snd-card-0
alias sound-service-0-0 snd-mixer-oss
alias sound-service-0-1 snd-seq-oss
alias sound-service-0-3 snd-pcm-oss
alias sound-service-0-8 snd-seq-oss
alias sound-service-0-12 snd-pcm-oss
options snd-card-intel8x0 snd_index=0 snd_id=CARD_0 snd_pbk_frame_size=128 snd_cap_frame_size=128 snd_mic_frame_size=128

------------------------------------------------------------------------
 
Also, when I run the modprobe on snd-card-o, I get this error message.
 
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[root@hqdhcp110058 alsa-driver-0.5.11]# modprobe snd-card-0
Note: /etc/modules.conf is more recent than
/lib/modules/2.4.2-2/modules.dep
/lib/modules/2.4.2-2/misc/snd-intel8x0.o: unresolved symbol synchronize_irq
/lib/modules/2.4.2-2/misc/snd-intel8x0.o: insmod
/lib/modules/2.4.2-2/misc/snd-intel8x0.o failed
/lib/modules/2.4.2-2/misc/snd-intel8x0.o: insmod snd-card-0 failed

------------------------------------------------------------------------
 
By the way, when I "lsmod", I lack the intel8x0 modules, as below.
 
------------------------------------------------------------------------
[root@hqdhcp110058 /etc]# lsmod
Module                  Size  Used by
tuner                   4240   1  (autoclean)
bttv                   59888   1  (autoclean)
i2c-algo-bit            7328   1  (autoclean) [bttv]
i2c-core               13408   0  (autoclean) [tuner bttv i2c-algo-bit]
videodev                5024   4  (autoclean) [bttv]
snd-pcm-oss            18880   0  (autoclean) (unused)
snd-pcm-plugin         17168   0  (autoclean) [snd-pcm-oss]
snd-pcm                34784   0  (autoclean) [snd-pcm-oss snd-pcm-plugin]
snd-timer               9584   0  (autoclean) [snd-pcm]
i810_audio             14480   1  (autoclean)
ac97_codec              8800   0  (autoclean) [i810_audio]
snd-mixer-oss           4960   0  (autoclean) [snd-pcm-oss]
snd-mixer              25568   0  (autoclean) [snd-mixer-oss]
snd                    38672   0  (autoclean) [snd-pcm-oss snd-pcm-plugin
snd-pcm snd-timer snd-mixer-oss snd-mixer]
soundcore               4464   2  (autoclean) [i810_audio snd]
autofs                 11264   1  (autoclean)
ds                      7280   2
yenta_socket           11440   2
pcmcia_core            43072   0  [ds yenta_socket]
8139too                16480   1  (autoclean)
ipchains               38976   0  (unused)
usb-uhci               20720   0  (unused)
usbcore                49664   1  [usb-uhci]
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I followed everything in the instructions but this still happens. Can somebody help me out on this please? Thanks you very much.