Public bug reported:
When I use the multimedia keys and let pulseaudio set the volume, the
sound is already distorted halfway. 100% Master volume means 0dB, but
100% PCM volume means +35dB, which produced distorted output.
ProblemType: Bug
Architecture: i386
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: cristi 12720 F.... pulseaudio
/dev/snd/pcmC0D0p: cristi 12720 F...m pulseaudio
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xfc300000 irq 22'
Mixer name : 'Conexant CX20549 (Venice)'
Components : 'HDA:14f15045,1734110e,00100100'
Controls : 19
Simple ctrls : 9
Date: Mon Oct 26 23:34:17 2009
DistroRelease: Ubuntu 9.10
NonfreeKernelModules: fglrx
Package: alsa-base 1.0.20+dfsg-1ubuntu5
PackageArchitecture: all
ProcEnviron:
LANGUAGE=fr_FR.UTF-8
PATH=(custom, user)
LANG=fr_FR.UTF-8
SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
SourcePackage: alsa-driver
Uname: Linux 2.6.31-14-generic i686
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386
--
[karmic] CX20549 100% volume means 35dB (distorted output)
https://bugs.launchpad.net/bugs/461521
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