At least you bring some hope with kernel 2.6.32
thanks for the info, I feel less desperate now ;)

--- cliff1000...@gmail.com wrote:

From: Cliff1000000 <cliff1000...@gmail.com>
To: jert...@herzeleid.net
Subject: [Bug 445849] Re: Highpitched Rattling like Sound with 5.1 Surround     
Configuration on Karmic Koala
Date: Sun, 14 Feb 2010 08:42:09 -0000

Well I take it all back!
I was in the middle of a game of Glest when the sytem crashed and I was not 
able to boot into the new kernel even after trying booting off the Ubuntu CD 
and doing a Gparted check.  I had to boot into 2.6.31 and remove 2.6.32 via 
Synaptic. Dang.  That was really nice having decent sound for 30 min.

-- 
Highpitched Rattling like Sound with 5.1 Surround Configuration on Karmic Koala
https://bugs.launchpad.net/bugs/445849
You received this bug notification because you are a direct subscriber
of the bug.

Status in “pulseaudio” package in Ubuntu: Confirmed

Bug description:
Binary package hint: pulseaudio

I'm hearing a high pitched rattling sound when I have pulseaudio set to 5.1 
surround
I set PulseAudio to 5.1 surround via the PulseAudio Volume Manager under the 
Configuration Tab
I'm running the Karmic Koala beta with all the newest Updates
I have a 82801JI (ICH10 Family) HD Audio Controller

I've tried other settings under the Configuration Tab, Analog Stereo
seems to work perfectly but I have a 5.1 Surround Speaker Setup.

This problem seems to get worse as I increase the volume through
pulseaudio, if I change the volume of a individual channel it gets
almost impossible to listen to anything, all I can hear is a high
pitched rattling like sound. However if I set the volume of channels
individually through 'alsamixer' it doesn't screw up at all.

ProblemType: Bug
Architecture: i386
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  chris      2096 F.... pulseaudio
 /dev/snd/pcmC0D0c:   chris      2096 F...m pulseaudio
 /dev/snd/pcmC0D0p:   chris      2096 F...m pulseaudio
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf9ff8000 irq 22'
   Mixer name   : 'Realtek ALC1200'
   Components   : 'HDA:10ec0888,104382fe,00100101'
   Controls      : 40
   Simple ctrls  : 22
Date: Wed Oct  7 18:01:59 2009
DistroRelease: Ubuntu 9.10
NonfreeKernelModules: nvidia
Package: pulseaudio 1:0.9.18-0ubuntu3
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: pulseaudio
Uname: Linux 2.6.31-pae i686

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-- 
Highpitched Rattling like Sound with 5.1 Surround Configuration on Karmic Koala
https://bugs.launchpad.net/bugs/445849
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