W2100z, faint audio under RHEL4

Hi all-
I just converted to a W2100z as my workstation this week, so I'm going through the process of getting things configured. I'm running Red Hat Enterprise Linux WS (workstation) 4, so far with the stock Red Hat kernel (2.6.9-22.0.2ELsmp) and Red Hat's default audio-related packages.
I have speakers plugged in the back, and headphones plugged in the front. At first I was getting no audio whatsoever, but that turned out to be a problem with GNOME's volume application (mixer) defaulting to having all the channels muted.
Now I'm getting audio, but even with the mixer channels turned way up, the audio is quite faint. Is anyone else experiencing this? I've tried sound mixer apps under other desktop systems (e.g. WindowMaker's Mixer.app) and had the same results. Audio plays and sounds correct, but it's very faint.
Also, can anyone confirm that the audio hardware is based on the "Realtek ALC655 AC'97"? Is the snd_intel8x0 the correct driver module for that card, or should it be using something else? Here's what's getting loaded by default:
$ lsmod | egrep 'snd_'
snd_intel8x0 38665 1
snd_ac97_codec 80961 1 snd_intel8x0
snd_pcm_oss 59385 0
snd_mixer_oss 21313 1 snd_pcm_oss
snd_pcm 109769 2 snd_intel8x0,snd_pcm_oss
snd_timer 28617 1 snd_pcm
snd_page_alloc 12881 2 snd_intel8x0,snd_pcm
snd_mpu401_uart 10305 1 snd_intel8x0
snd_rawmidi 29413 1 snd_mpu401_uart
snd_seq_device 10573 1 snd_rawmidi
snd 62857 11 snd_intel8x0,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pc m,snd_timer,snd_mpu401_uart,snd_rawmidi,snd_seq_device
I'm mainly wondering if other people have seen this same problem, and if so, what if anything they've done to get around it?
Thanks much!
Tim

Responding to my own post...
161 views and no responses, which puzzles me. Is no one else running RHEL4 (or something based on it, like CentOS or White Box Linux) on a 2100z?
I'm still having this problem, though I do have some info to report. I updated the BIOS on the 2100z (to B4S4), and during the BIOS update procedure, the system emits several beeps. I can tell you that those beeps came out of the speakers and were extremely loud, so it's not a problem with the speakers themselves or how they're plugged in.
That points the finger more directly at a driver issue, but I'm surprised that I haven't at least gotten a few "me too!"s posted on this.
I'll keep poking at this as time permits, but if anyone else finds a solution (or just wants to chime in that they're seeing the same issue), it would be appreciated.
Thanks!
Tim

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I have an iMac G5 running 10.5.8. I recently bought some new speakers for my computer, hooked them up and found out the sound was really bad sounding (like underwater). At first I thought it was my speakers, but I plugged in my iPhone and it sounded great.
I have another user profile on my iMac, so I went into it and ran iTunes and the sound in there is great as well. Only under my profile, that it has the bad audio. I went through and looked if any third party sound enhancement software was installed and couldn't come up with anything. Also I turned off all the Equalizer and Sound enhancer stuff in iTunes.
This isn't just related to iTunes on my profile either but everything (Safari, Garageband, Games, etc).
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Did someone help you today? Press the star on the left to thank them with a Kudo!
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Follow @LenovoForums on Twitter!

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This question was solved.
View Solution.

Hi,
"If the driver is a previous revision install it using the TROUBLESHOOT COMPATIBILITY tool that is part of the Windows 7 OS.
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