[PC-X002115, Realtek ALC892, SPDIF Out, Internal] Playback problem

[sr123456789]

Sorry - here is the data that should have been attached to bug #1787570

When I run the test via the ubuntu-bug app, i produced very feint tones from the rear speakers indicating some functionality!

Thanks

Please merge with #1787570

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 4.15.0-32.35-generic 4.15.18
Uname: Linux 4.15.0-32-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.9-0ubuntu7.2
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC2: steve 1266 F.... pulseaudio
 /dev/snd/controlC1: steve 1266 F.... pulseaudio
 /dev/snd/controlC0: steve 1266 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
Date: Fri Aug 17 11:32:56 2018
InstallationDate: Installed on 2018-08-16 (0 days ago)
InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
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: SPDIF Out, Internal
Symptom_Type: Only some of outputs are working
Title: [PC-X002115, Realtek ALC892, SPDIF Out, Internal] Playback problem
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/18/2015
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: F8
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: Z97M-D3H
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: x.x
dmi.chassis.asset.tag: 7402400-001
dmi.chassis.type: 3
dmi.chassis.vendor: NOVATECH LTD
dmi.chassis.version: V1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF8:bd09/18/2015:svnNOVATECHLTD:pnPC-X002115:pvrV1.0:rvnGigabyteTechnologyCo.,Ltd.:rnZ97M-D3H:rvrx.x:cvnNOVATECHLTD:ct3:cvrV1.0:
dmi.product.family: AMI PLATFORM
dmi.product.name: PC-X002115
dmi.product.version: V1.0
dmi.sys.vendor: NOVATECH LTD