Public bug reported:
I installed Lucid beta on a new laptop, a Thinkpad Edge. It has one of those
duplex, single mic+headphones jack. At first, all was working as expected -
sound from speakers when no headphones, speakers muted when headphones plugged
in - until I hit the mute button once. Now, I am getting rather erratic
behaviour: most of the time sound is coming from the internal speakers when
headphones are plugged in, sometimes sound comes from both speakers and
headphones. I cannot get sound to come only from the headphones anymore.
I get the change in behaviour when changing the settings in the sound
preferences, but not always, and not in any consistent way, so I cannot give
more details.
Problem remains after a restart.
In Windows 7 (dual boot), things work as expected, so not a hardware problem.
ProblemType: Bug
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Architecture: amd64
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: geoffrey 1168 F.... pulseaudio
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xf0800000 irq 22'
Mixer name : 'Intel G45 DEVCTG'
Components : 'HDA:14f15066,17aa21b4,00100300
HDA:80862802,80860101,00100000'
Controls : 16
Simple ctrls : 11
CurrentDmesg:
[ 15.804555] ppdev: user-space parallel port driver
[ 22.664812] IBM TrackPoint firmware: 0x0e, buttons: 3/3
[ 22.947937] input: TPPS/2 IBM TrackPoint as
/devices/platform/i8042/serio4/serio5/input/input8
[ 25.820016] eth0: no IPv6 routers present
Date: Sat Mar 27 10:12:38 2010
DistroRelease: Ubuntu 10.04
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Beta amd64 (20100318)
Package: alsa-base 1.0.22.1+dfsg-0ubuntu3
PackageArchitecture: all
ProcEnviron:
LANG=en_US.utf8
SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.32-17.26-generic 2.6.32.10+drm33.1
SelectedCard: 0 Intel HDA-Intel - HDA Intel
SourcePackage: alsa-driver
Symptom: audio
Title: [Conexant CX20582 (Pebble)] Playback problem
Uname: Linux 2.6.32-17-generic x86_64
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug lucid
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[Conexant CX20582 (Pebble)] Playback problem - sound from speakers when
headphones plugged in, or both in headphones and speakers
https://bugs.launchpad.net/bugs/549289
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