Public bug reported:
I found by chance that output sound does not work UNLESS I Resume the
laptop from a previous Suspend. That seems nothing to do with graphical
system as I reproduced the same problem by stopping lightdm. That is,
booting the laptop into terminal black screen
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 4.4.0-66.87-generic 4.4.44
Uname: Linux 4.4.0-66-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.5
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: claraa 1854 F.... pulseaudio
CurrentDesktop: Unity
Date: Thu Mar 9 16:35:11 2017
InstallationDate: Installed on 2017-03-05 (3 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_Jack: Speaker, Internal
Symptom_Type: None of the above
Title: [SVS15112C5E, Realtek ALC275, Speaker, Internal] Playback problem
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/13/2013
dmi.bios.vendor: Insyde Corp.
dmi.bios.version: R1021C8
dmi.board.asset.tag: N/A
dmi.board.name: VAIO
dmi.board.vendor: Sony Corporation
dmi.board.version: N/A
dmi.chassis.asset.tag: N/A
dmi.chassis.type: 10
dmi.chassis.vendor: Sony Corporation
dmi.chassis.version: N/A
dmi.modalias:
dmi:bvnInsydeCorp.:bvrR1021C8:bd03/13/2013:svnSonyCorporation:pnSVS15112C5E:pvrC60BNM15:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A:
dmi.product.name: SVS15112C5E
dmi.product.version: C60BNM15
dmi.sys.vendor: Sony Corporation
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug xenial
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https://bugs.launchpad.net/bugs/1671530
Title:
Playback sound ONLY works after Resume from a Suspend
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