Using sound preferences output volume slider automaticaly maxes out all outputs

[Krešo Kunjas]

Binary package hint: pulseaudio

Using sound preferences output volume slider automaticaly maxes out all outputs on hw:0 ( im running alsamixer in console ), and sound is hissing / distorted

Even when i touch the slider some pcm otuputs get maxed. when i manualy restore volumes to noemal the sound is corrected.

After that when touching / using output volume slider it happens again.

WORKAROUND: Added ignor_Db=1 to default.pa .

ProblemType: Bug
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: kreso 3548 F.... pulseaudio
 /dev/snd/pcmC0D0c: kreso 3548 F...m pulseaudio
 /dev/snd/pcmC0D0p: kreso 3548 F...m pulseaudio
 /dev/snd/timer: kreso 3548 f.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'Audigy'/'SB Audigy 1 [SB0090] (rev.3, serial:0x511102) at 0xd000, irq 20'
   Mixer name : 'TriTech TR28602'
   Components : 'AC97a:54524123'
   Controls : 194
   Simple ctrls : 30
Date: Thu Dec 31 11:52:22 2009
DistroRelease: Ubuntu 10.04
EcryptfsInUse: Yes
NonfreeKernelModules: nvidia
Package: pulseaudio 1:0.9.21-0ubuntu5
ProcEnviron:
 LANGUAGE=hr_HR.UTF-8
 PATH=(custom, user)
 LANG=hr_HR.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.32-9.13-generic
SourcePackage: pulseaudio
Tags: lucid
Uname: Linux 2.6.32-9-generic x86_64

[David Henningsson (diwic)]

Hi kreso, please try either https://wiki.ubuntu.com/DebuggingSoundProblems/KarmicCaveats#Volume%20range%20anomalies (Volume range anomalies) or https://wiki.ubuntu.com/DebuggingSoundProblems/KarmicCaveats#Sound%20drivers%20need%20to%20be%20updated (update sound drivers), or both, and see if that helps. Thank you!

[Krešo Kunjas (deresh)]

hi, david, i have used your advice and added ignor_Db=1 to default.pa and now things are ok. thank you for suggestion!

do i close this bug report now or leave it open?

[David Henningsson (diwic)]

Good question, I should work out of the box so I would say it is still a bug. Perhaps this is something for mr Figg to deal with?

[Daniel T Chen (crimsun)]

This symptom is not a PulseAudio bug. PA is designed to allow the full
range of volume over one's audio hardware (see the
PulseAudioStoleMyVolumes wiki page).

On the other hand, arguably it is a *linux* bug that there is
distortion occurring at whatever dB "100%" corresponds to.

[penalvch (penalvch)]

Krešo Kunjas, this bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? If so, could you please test for this with the latest development release of Ubuntu? ISO images are available from http://cdimage.ubuntu.com/daily-live/current/ .

If it remains an issue, could you please run the following command in the development release from a Terminal (Applications->Accessories->Terminal), as it will automatically gather and attach updated debug information to this report:

apport-collect -p linux <replace-with-bug-number>

Also, could you please test the latest upstream kernel available following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. Please do not test the daily folder, but the one all the way at the bottom. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags:
kernel-fixed-upstream
kernel-fixed-upstream-VERSION-NUMBER

where VERSION-NUMBER is the version number of the kernel you tested. For example:
kernel-fixed-upstream-v3.11

This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag:
needs-upstream-testing

If the mainline kernel does not fix this bug, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-VERSION-NUMBER

As well, please remove the tag:
needs-upstream-testing

Once testing of the upstream kernel is complete, please mark this bug's Status as Confirmed. Please let us know your results. Thank you for your understanding.

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]