Public bug reported:
Description: Ubuntu 15.04
Release: 15.04
When a headphone is plugged in, sound is muted altough the headphone volume is
still up.
When I open alsamixer I can regain sound on my headphone by unmuting the
speaker channel and increasing the volume on the volume channel. However each
time that I unplug my headphone I need to redo this.
So it looks like, in contradiction to how the software is programmed and users
understand, the headphone and speaker channels work in serial for headphone
output instead of parallel.
Because this used to work for years (at least since Ubuntu 12.04, I used them
all), this bug is introduced in the lastest release (15.04).
I also filed this bug in the alsamixer package, but afterwards I realised that
I probably have filed it at the wrong spot.
Kind regards,
Bart
ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: alsa-base 1.0.25+dfsg-0ubuntu4
ProcVersionSignature: Ubuntu 3.19.0-18.18-generic 3.19.6
Uname: Linux 3.19.0-18-generic x86_64
ApportVersion: 2.17.2-0ubuntu1.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/pcmC0D0c: bdekoning 1717 F...m pulseaudio
/dev/snd/pcmC0D0p: bdekoning 1717 F...m pulseaudio
/dev/snd/controlC0: bdekoning 1717 F.... pulseaudio
bdekoning 2184 F.... alsamixer
CurrentDesktop: Unity
Date: Fri Jun 5 08:58:16 2015
EcryptfsInUse: Yes
InstallationDate: Installed on 2015-05-12 (23 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_Card: Intern geluid - HDA Intel MID
Symptom_Jack: Black Headphone Out, Left
Symptom_Type: Volume slider, or mixer problems
Title: [HP ProBook 6550b, IDT 92HD75B3X5, Black Headphone Out, Left] volume
slider problem
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/27/2010
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 68CDF Ver. F.04
dmi.board.name: 146E
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 73.12
dmi.chassis.asset.tag: CNU0483Z5Q
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias:
dmi:bvnHewlett-Packard:bvr68CDFVer.F.04:bd10/27/2010:svnHewlett-Packard:pnHPProBook6550b:pvr:rvnHewlett-Packard:rn146E:rvrKBCVersion73.12:cvnHewlett-Packard:ct10:cvr:
dmi.product.name: HP ProBook 6550b
dmi.sys.vendor: Hewlett-Packard
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug vivid
** Attachment removed: "CurrentDmesg.txt"
https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1462229/+attachment/4410251/+files/CurrentDmesg.txt
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https://bugs.launchpad.net/bugs/1462229
Title:
Sound is muted when plugging in a headphone although volume is up
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