HDMI Sound drops out after screen blank/suspend (must use pacmd to reset0

[paul]

Sound is outputted through HDMI. Upon suspend/resume or resume from screen blank, output switches to analog and HDMI is not an available option from the GUI although still listed using "aplay-l". Sound returns after resetting HDMI as default using the following command: pacmd set-card-profile 1 output:hdmi-stereo-extra1+input:analog-stereo

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
Uname: Linux 4.4.0-21-generic x86_64
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
CurrentDesktop: Unity
Date: Fri Apr 29 09:52:09 2016
InstallationDate: Installed on 2015-12-15 (135 days ago)
InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_Card: Built-in Audio - HDA Intel PCH
Symptom_Jack: Digital Out, HDMI
Symptom_Type: Sound works for a while, then breaks
Title: [, Intel CougarPoint HDMI, Digital Out, HDMI] fails after a while
UpgradeStatus: Upgraded to xenial on 2016-04-22 (6 days ago)
dmi.bios.date: 12/04/2012
dmi.bios.vendor: Intel Corp.
dmi.bios.version: BLH6710H.86A.0160.2012.1204.1156
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: DH67GD
dmi.board.vendor: Intel Corporation
dmi.board.version: AAG10206-210
dmi.chassis.type: 3
dmi.modalias: dmi:bvnIntelCorp.:bvrBLH6710H.86A.0160.2012.1204.1156:bd12/04/2012:svn:pn:pvr:rvnIntelCorporation:rnDH67GD:rvrAAG10206-210:cvn:ct3:cvr:

[Launchpad Janitor (janitor)]

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