[Dell XPS 15 9560] No sound from speakers

[Jonathan Wingfield]

Speakers work from windows partition. Hear sounds when ubuntu log in page comes up. Once logged in cannot hear sound using alsa or pulseaudio. No reports of speaker problems or app complaints

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 4.4.0-131.157-generic 4.4.134
Uname: Linux 4.4.0-131-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.18
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: jon 1974 F.... pulseaudio
CurrentDesktop: Unity
Date: Wed Jul 25 22:26:23 2018
InstallationDate: Installed on 2018-01-05 (201 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
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_DevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: jon 1974 F.... pulseaudio
Symptom_Type: No sound at all
Title: [HDA-Intel - HDA Intel PCH, playback] No sound at all
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 01/18/2017
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.1.3
dmi.board.name: 05FFDN
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr1.1.3:bd01/18/2017:svnDellInc.:pnXPS159560:pvr:rvnDellInc.:rn05FFDN:rvrA00:cvnDellInc.:ct10:cvr:
dmi.product.name: XPS 15 9560
dmi.sys.vendor: Dell Inc.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Cerin (chrisspen)]

I ran into this as well on a Dell Precision 5520. I tried all the fixes listed at https://help.ubuntu.com/community/SoundTroubleshootingProcedure and nothing worked. Only reverting to the 4.4.0-130-generic kernel partially fixed the problem, but sound still breaks when I suspend/resume.

[Daniel van Vugt (vanvugt)]

Zero speaker_outs sounds like the issue:

[ 4.273272] snd_hda_codec_realtek hdaudioC0D0: autoconfig for ALC3266: line_outs=1 (0x17/0x0/0x0/0x0/0x0) type:speaker
[ 4.273274] snd_hda_codec_realtek hdaudioC0D0: speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
[ 4.273276] snd_hda_codec_realtek hdaudioC0D0: hp_outs=1 (0x21/0x0/0x0/0x0/0x0)
[ 4.273277] snd_hda_codec_realtek hdaudioC0D0: mono: mono_out=0x0
[ 4.273278] snd_hda_codec_realtek hdaudioC0D0: inputs:
[ 4.273280] snd_hda_codec_realtek hdaudioC0D0: Headset Mic=0x18
[ 4.273282] snd_hda_codec_realtek hdaudioC0D0: Headphone Mic=0x1a
[ 4.273283] snd_hda_codec_realtek hdaudioC0D0: Internal Mic=0x12