Could you please try updating the HDA audio driver, as outlined here:
https://wiki.ubuntu.com/Audio/UpgradingAlsa/DKMS.
Thanks.
** Changed in: alsa-driver (Ubuntu)
Status: Confirmed => Incomplete
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https://bugs.launchpad.net/bugs/1616413
Title:
[OptiPlex 7040, Realtek ALC3234, Speaker, Internal] No sound at all
Status in alsa-driver package in Ubuntu:
Incomplete
Bug description:
I am not getting any sound at all from my Dell Optiplex 7040 (running
Ubuntu 16.04).
The volume control icon is showing up next to the clock, and I am able
to change the volume levels: but this has no effect. There is
absolutely NO sound at all.
In Settings -> Output, no devices are listed. Strangely enough, aplay
-l results in:
**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC3234 Analog [ALC3234 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 7: HDMI 1 [HDMI 1]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 8: HDMI 2 [HDMI 2]
Subdevices: 1/1
Subdevice #0: subdevice #0
which indicates that the sound card is getting detected. I tried
sudo alsa force-reload
following which I rebooted. That doesn't fix the problem. I opened
alsamixer: it is detecting the sound card perfectly and nothing is
muted. Still, there is no audio. I then tried the following:
sudo apt-get remove --purge alsa-base pulseaudio
sudo apt-get install alsa-base pulseaudio
sudo alsa force-reload
And still there is no audio. I'd be really grateful if you could look
into this. Thanks.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 4.4.0-36.55-generic 4.4.16
Uname: Linux 4.4.0-36-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: suvam 4522 F.... pulseaudio
suvam 5594 F.... alsamixer
CurrentDesktop: Unity
Date: Wed Aug 24 15:59:21 2016
DistributionChannelDescriptor:
# This is a distribution channel descriptor
# For more information see
http://wiki.ubuntu.com/DistributionChannelDescriptor
canonical-oem-somerville-trusty-amd64-osp1-20150720-0
InstallationDate: Installed on 2016-02-12 (193 days ago)
InstallationMedia: Ubuntu 14.04 "Trusty" - Build amd64 LIVE Binary
20150720-04:06
PackageArchitecture: all
ProcEnviron:
LANGUAGE=en_IN:en
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_IN
SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH failed
Symptom_Card: Built-in Audio - HDA Intel PCH
Symptom_DevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: suvam 4522 F.... pulseaudio
suvam 5594 F.... alsamixer
Symptom_Jack: Speaker, Internal
Symptom_Type: No sound at all
Title: [OptiPlex 7040, Realtek ALC3234, Speaker, Internal] No sound at all
UpgradeStatus: Upgraded to xenial on 2016-08-11 (13 days ago)
dmi.bios.date: 12/04/2015
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.2.1
dmi.board.name: 0HD5W2
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 3
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvr1.2.1:bd12/04/2015:svnDellInc.:pnOptiPlex7040:pvr:rvnDellInc.:rn0HD5W2:rvrA00:cvnDellInc.:ct3:cvr:
dmi.product.name: OptiPlex 7040
dmi.sys.vendor: Dell Inc.
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