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Audio problem on Dell Dimension 4600



I am working on a solution for the onboard audio on this PC running RH8.0.
The Intel site suggests for RH8.0 linux and this motherboard (Intel D865PESO) 
to use the driver, ADI Integrated Audio Driver 
[alsa_driver_0.9.1adi_rev5.tar.gz]. This driver installed OK, except that the 
last 2 lines of the recommended addition to the modules.conf file caused 
problems and had to be deleted (see below).

The sound modules load but do not work - not one note. For example, if I try 
to play an mp3, I get the message

"couldn't open  audio; Please check that

1. you have the correct output plugin selected
2. no other program is blocking the soundcard
3 your soundcard is configured correctly
OK"

The KDE utility system settings/soundcard detection says:
Vendor: unknown vendor
Model: generic snd-intel8x0 device
Module: snd-intel8x0
"test" produces nothing; an audio cd likewise.

Dell has informed me "the 1980 audio solution uses the AC97 2.2 compliant 
digital bus from the ICH5 and the Analog Devices ADI1980 AC97 CODEC."

However I have good evidence the motherboard is the D865PESO model, and the 
Intel website shows this model uses the Analog Devices AD1985 codec, not 1980.

root localhost music]# lsmod
Module                  Size  Used by    Not tainted
snd-pcm-oss            45668   1  (autoclean)
snd-mixer-oss          16536   0  (autoclean) [snd-pcm-oss]
snd-intel8x0           24676   1  (autoclean)
snd-pcm                83264   0  (autoclean) [snd-pcm-oss snd-intel8x0]
snd-timer              19560   0  (autoclean) [snd-pcm]
snd-ac97-codec         44768   0  (autoclean) [snd-intel8x0]
snd-page-alloc          8504   0  (autoclean) [snd-intel8x0 snd-pcm]
snd-mpu401-uart         4940   0  (autoclean) [snd-intel8x0]
snd-rawmidi            18656   0  (autoclean) [snd-mpu401-uart]
snd-seq-device          6316   0  (autoclean) [snd-rawmidi]
snd                    43140   0  (autoclean) [snd-pcm-oss snd-mixer-oss 
snd-intel8x0
snd-pcm snd-timer snd-ac97-codec snd-mpu401-uart snd-rawmidi snd-seq-device]
soundcore               6532   3  (autoclean) [snd]
binfmt_misc             7524   1
autofs                 13348   0  (autoclean) (unused)
e100                   51172   1
etc

The lines added to the modules.conf file are:
# ALSA native device support
alias char-major-116 snd
options snd major=116 cards_limit=1
alias snd-card-0 snd-intel8x0

# OSS/Free setup
alias char-major-14 soundcore
alias sound-slot-0 snd-intel8x0
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

The 2 extra lines that caused a heap of error messages during boot (including 
failure to mount a dos partition), and I removed, were:
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 || :

Any suggestions for further action would be much appreciated.

Greg




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