[, Intel Generic, Digital Out, HDMI] No sound at all

[Rene F Fonseca]

After installing my current version of ubuntu, I had no issues for months until I tried mounting two drives using fstab. I was able to do so but there was no sound after changing the fstab file. So, I erased my edited file to restore it back to the original file and ever since then I have still had the issue of no sound devices in the sound settings. I have executed pulseaudio -D which restores the audio sources but doesn't restore sound. I am connected to an acer r240hy bidx 23.8-inch ips hdmi dvi vga (1920 x 1080) widescreen monitor and I was using the headphone jack at the back for audio which worked fine fresh off install of ubuntu 16.04 LTS but now does not work. No video card, no audio card; just stock intel motherboard, Intel® Core™ i7-3770 CPU @ 3.40GHz × 8 , Intel® Ivybridge Desktop Graphics. I have some knowledge around terminal and know how to execute commands well so if you need any information to help solve this issue, I'll gladly run the commands to get that info. Any help would be much appreciated, thanks a lot!

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 4.10.0-28.32~16.04.2-generic 4.10.17
Uname: Linux 4.10.0-28-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.10
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: frankfonseca 1647 F.... pulseaudio
CurrentDesktop: Unity
Date: Thu Jul 27 23:53:37 2017
InstallationDate: Installed on 2017-07-08 (19 days ago)
InstallationMedia: Ubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215.2)
JournalErrors:
 Error: command ['journalctl', '-b', '--priority=warning', '--lines=1000'] failed with exit code 1: Hint: You are currently not seeing messages from other users and the system.
       Users in the 'systemd-journal' group can see all messages. Pass -q to
       turn off this notice.
 No journal files were opened due to insufficient permissions.
PackageArchitecture: all
ProcEnviron:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH failed
Symptom_Card: Built-in Audio - HDA Intel PCH
Symptom_DevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: root 1494 F.... pulseaudio
                      frankfonseca 1647 F.... pulseaudio
Symptom_Jack: Digital Out, HDMI
Symptom_Type: No sound at all
Title: [, Intel Generic, Digital Out, HDMI] No sound at all
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/15/2012
dmi.bios.vendor: Intel Corp.
dmi.bios.version: BLH6710H.86A.0156.2012.0615.1908
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: DH67CL
dmi.board.vendor: Intel Corporation
dmi.board.version: AAG10212-211
dmi.chassis.type: 3
dmi.modalias: dmi:bvnIntelCorp.:bvrBLH6710H.86A.0156.2012.0615.1908:bd06/15/2012:svn:pn:pvr:rvnIntelCorporation:rnDH67CL:rvrAAG10212-211:cvn:ct3:cvr:
mtime.conffile..etc.modprobe.d.alsa-base.conf: 2017-07-25T00:30:17.283239