[X555LAB, Intel Haswell HDMI, Digital Out, HDMI] No sound at all

[gopendra]

Please check and let me know the solution

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 4.15.0-36.39-generic 4.15.18
Uname: Linux 4.15.0-36-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.4
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: gopendra 6008 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
Date: Mon Oct 22 11:32:46 2018
InstallationDate: Installed on 2018-10-10 (11 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:HDMI failed
Symptom_Card: Built-in Audio - HDA Intel HDMI
Symptom_DevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: gdm 1143 F.... pulseaudio
                      gopendra 6008 F.... pulseaudio
Symptom_Jack: Digital Out, HDMI
Symptom_Type: No sound at all
Title: [X555LAB, Intel Haswell HDMI, Digital Out, HDMI] No sound at all
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/04/2015
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: X555LAB.503
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: X555LAB
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: 1.0
dmi.chassis.asset.tag: ATN12345678901234567
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK COMPUTER INC.
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrX555LAB.503:bd08/04/2015:svnASUSTeKCOMPUTERINC.:pnX555LAB:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnX555LAB:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
dmi.product.family: X
dmi.product.name: X555LAB
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK COMPUTER INC.
mtime.conffile..etc.modprobe.d.alsa-base.conf: 2018-10-22T11:27:17.870832