Public bug reported:
Speaker doesn't work at all under Ubuntu, but sound through headphones is
working fine.
The machine is an hp 20 all-in-one. The hardware is fine, as the speaker does
work in the original Windows 8 that came with the computer. We played with
alsamixer and tried to tweak /etc/modprobe.d/alsa-base.conf to no avail. We
never managed to get a single sound through the internal speakers in Ubuntu.
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Hardware: hp 20 all-in-one
O.S.: Ubuntu 14.04.1 LTS
package: alsa-base 1.0.25+dfsg-0ubuntu4
expected: internal speakers to produce sound with "sound settings test", vlc
or web browser
happened: no sound through internal speakers ever in Ubuntu (but yes through
headphones in Ubuntu and through internal
speakers in Windows)
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: alsa-base 1.0.25+dfsg-0ubuntu4
ProcVersionSignature: Ubuntu 3.13.0-45.74-generic 3.13.11-ckt13
Uname: Linux 3.13.0-45-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.6
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: oriana 1848 F.... pulseaudio
CurrentDesktop: Unity
Date: Thu Feb 12 09:59:05 2015
InstallationDate: Installed on 2015-02-11 (0 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH failed
Symptom_Card: Built-in Audio - HDA Intel PCH
Symptom_Jack: Speaker, Internal
Symptom_Type: Only some of outputs are working
Title: [20-2110nz, Realtek ALC280, Speaker, Internal] Playback problem
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/12/2014
dmi.bios.vendor: AMI
dmi.bios.version: 80.13
dmi.board.asset.tag: 4CH4457MH7
dmi.board.name: 2B15
dmi.board.vendor: Hewlett-Packard
dmi.board.version: 1.02A
dmi.chassis.asset.tag: 4CH4457MH7
dmi.chassis.type: 3
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias:
dmi:bvnAMI:bvr80.13:bd06/12/2014:svnHewlett-Packard:pn20-2110nz:pvr:rvnHewlett-Packard:rn2B15:rvr1.02A:cvnHewlett-Packard:ct3:cvr:
dmi.product.name: 20-2110nz
dmi.sys.vendor: Hewlett-Packard
mtime.conffile..etc.modprobe.d.alsa.base.conf: 2015-02-12T09:58:59.506131
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug trusty
--
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https://bugs.launchpad.net/bugs/1421118
Title:
[20-2110nz, Realtek ALC280, Speaker, Internal] Playback problem :
headphones ok, speaker ko
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