No HDMI sound with ATI Radeon HD 8570D & Asus VS238H-P Monitor

[Mopar1973Man]

As stated I've got a ATI Radeon HD 8570D video card with HDMI port. The video part works fine but the audio does not function. The monitor volume is turned up to 100%. Alsamixer shows 00 and unadjustable for the volume control for this port. This is a Asus A78M-A motherboard with a AMD A8-6600K APU with Radeon(tm) HD Graphics.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: alsa-base 1.0.25+dfsg-0ubuntu4
ProcVersionSignature: Ubuntu 4.2.0-41.48~14.04.1-generic 4.2.8-ckt11
Uname: Linux 4.2.0-41-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 2.14.1-0ubuntu3.21
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: michael 2148 F.... pulseaudio
 /dev/snd/pcmC1D0p: michael 2148 F...m pulseaudio
 /dev/snd/controlC1: michael 2148 F.... pulseaudio
CurrentDesktop: Unity
Date: Fri Jul 1 15:03:53 2016
InstallationDate: Installed on 2016-06-12 (19 days ago)
InstallationMedia: Ubuntu 14.04.4 LTS "Trusty Tahr" - Release amd64 (20160217.1)
PackageArchitecture: all
SourcePackage: alsa-driver
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/05/2014
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1204
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: A78M-A
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev X.0x
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1204:bd12/05/2014:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnA78M-A:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer

[Mopar1973Man (z-mnelson)]

Here is the mixer with the HDMI cable and monitor hooked up. The on-board audio is disabled.

[Mopar1973Man (z-mnelson)]

I've seen posting the original post, I've upgrade to Ubuntu 16.04.1 problem is still the same with the HDMI sound. Same problems with the mixer at double ZERO and unable to adjust volume.