lost speaker output

I'm using Ubuntu 16.04 LTS
I lost HDMI speaker output and get rear speaker output. I am currently following the troubleshooting steps on this link.
https://help.ubuntu.com/community/SoundTroubleshootingProcedure

This is the end of Step 1
After executing these commands;

sudo apt-get update;sudo apt-get dist-upgrade; sudo apt-get install pavucontrol linux-sound-base alsa-base alsa-utils lightdm ubuntu-desktop linux-image-`uname -r` libasound2; sudo apt-get -y --reinstall install linux-sound-base alsa-base alsa-utils lightdm ubuntu-desktop linux-image-`uname -r` libasound2; killall pulseaudio; rm -r ~/.pulse*; ubuntu-support-status; sudo usermod -aG `cat /etc/group | grep -e '^pulse:' -e '^audio:' -e '^pulse-access:' -e '^pulse-rt:' -e '^video:' | awk -F: '{print $1}' | tr '\n' ',' | sed 's:,$::g'` `who

Hit:1 http://archive.canonical.com/ubuntu xenial InRelease
Hit:2 http://ppa.launchpad.net/atareao/atareao/ubuntu xenial InRelease
Hit:3 http://ppa.launchpad.net/damien-moore/codeblocks-stable/ubuntu xenial InRelease
Hit:4 http://ppa.launchpad.net/dolphin-emu/ppa/ubuntu xenial InRelease
Hit:5 http://ppa.launchpad.net/gambas-team/gambas3/ubuntu xenial InRelease
Hit:6 http://ppa.launchpad.net/i-nex-development-team/daily/ubuntu xenial InRelease
Hit:7 http://ppa.launchpad.net/nilarimogard/webupd8/ubuntu xenial InRelease
Hit:8 http://ppa.launchpad.net/plushuang-tw/uget-stable/ubuntu xenial InRelease
Hit:9 http://ppa.launchpad.net/thomas-schiex/blender/ubuntu xenial InRelease
Hit:10 http://ppa.launchpad.net/ubuntuhandbook1/sigil/ubuntu xenial InRelease
Hit:11 http://us.archive.ubuntu.com/ubuntu xenial InRelease
Get:12 http://us.archive.ubuntu.com/ubuntu xenial-security InRelease [109 kB]
Get:13 http://us.archive.ubuntu.com/ubuntu xenial-updates InRelease [109 kB]
Get:14 http://us.archive.ubuntu.com/ubuntu xenial-proposed InRelease [260 kB]
Get:15 http://us.archive.ubuntu.com/ubuntu xenial-backports InRelease [107 kB]
Fetched 586 kB in 9s (62.1 kB/s)
Reading package lists... Done
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Reading package lists... Done
Building dependency tree
Reading state information... Done
alsa-base is already the newest version (1.0.25+dfsg-0ubuntu5).
alsa-utils is already the newest version (1.1.0-0ubuntu5).
libasound2 is already the newest version (1.1.0-0ubuntu1).
linux-sound-base is already the newest version (1.0.25+dfsg-0ubuntu5).
pavucontrol is already the newest version (3.0-3build1).
lightdm is already the newest version (1.18.3-0ubuntu1.1).
ubuntu-desktop is already the newest version (1.361.3).
linux-image-4.4.0-156-generic is already the newest version (4.4.0-156.183).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 upgraded, 0 newly installed, 7 reinstalled, 0 to remove and 0 not upgraded.
Need to get 0 B/8,520 kB of archives.
After this operation, 0 B of additional disk space will be used.
Preconfiguring packages ...
(Reading database ... 307140 files and directories currently installed.)
Preparing to unpack .../lightdm_1.18.3-0ubuntu1.1_amd64.deb ...
Unpacking lightdm (1.18.3-0ubuntu1.1) over (1.18.3-0ubuntu1.1) ...
Preparing to unpack .../alsa-base_1.0.25+dfsg-0ubuntu5_all.deb ...
Unpacking alsa-base (1.0.25+dfsg-0ubuntu5) over (1.0.25+dfsg-0ubuntu5) ...
Preparing to unpack .../alsa-utils_1.1.0-0ubuntu5_amd64.deb ...
Unpacking alsa-utils (1.1.0-0ubuntu5) over (1.1.0-0ubuntu5) ...
Preparing to unpack .../libasound2_1.1.0-0ubuntu1_amd64.deb ...
Unpacking libasound2:amd64 (1.1.0-0ubuntu1) over (1.1.0-0ubuntu1) ...
Preparing to unpack .../linux-image-4.4.0-156-generic_4.4.0-156.183_amd64.deb ...
Unpacking linux-image-4.4.0-156-generic (4.4.0-156.183) over (4.4.0-156.183) ...
Preparing to unpack .../linux-sound-base_1.0.25+dfsg-0ubuntu5_all.deb ...
Unpacking linux-sound-base (1.0.25+dfsg-0ubuntu5) over (1.0.25+dfsg-0ubuntu5) ...
Preparing to unpack .../ubuntu-desktop_1.361.3_amd64.deb ...
Unpacking ubuntu-desktop (1.361.3) over (1.361.3) ...
Processing triggers for dbus (1.10.6-1ubuntu3.4) ...
Processing triggers for ureadahead (0.100.0-19.1) ...
ureadahead will be reprofiled on next reboot
Processing triggers for systemd (229-4ubuntu21.22) ...
Processing triggers for man-db (2.7.5-1) ...
Processing triggers for libc-bin (2.23-0ubuntu11) ...
Setting up lightdm (1.18.3-0ubuntu1.1) ...
Setting up linux-sound-base (1.0.25+dfsg-0ubuntu5) ...
Setting up alsa-base (1.0.25+dfsg-0ubuntu5) ...
Setting up libasound2:amd64 (1.1.0-0ubuntu1) ...
Setting up alsa-utils (1.1.0-0ubuntu5) ...
Setting up linux-image-4.4.0-156-generic (4.4.0-156.183) ...
Setting up ubuntu-desktop (1.361.3) ...
Processing triggers for libc-bin (2.23-0ubuntu11) ...
Processing triggers for linux-image-4.4.0-156-generic (4.4.0-156.183) ...
/etc/kernel/postinst.d/initramfs-tools:
update-initramfs: Generating /boot/initrd.img-4.4.0-156-generic
/etc/kernel/postinst.d/zz-update-grub:
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-4.4.0-156-generic
Found initrd image: /boot/initrd.img-4.4.0-156-generic
Found linux image: /boot/vmlinuz-4.4.0-155-generic
Found initrd image: /boot/initrd.img-4.4.0-155-generic
Found memtest86+ image: /boot/memtest86+.elf
Found memtest86+ image: /boot/memtest86+.bin
Found Windows 7 (loader) on /dev/sda2
Found Ubuntu 16.04.5 LTS (16.04) on /dev/sda5
done
rm: cannot remove '/home/hans/.pulse*': No such file or directory
Support status summary of 'tom-Inspiron-660':

You have 63 packages (2.4%) supported until April 2021 (Community - 5y)
You have 2044 packages (78.8%) supported until April 2021 (Canonical - 5y)

You have 30 packages (1.2%) that can not/no-longer be downloaded
You have 457 packages (17.6%) that are unsupported

Run with --show-unsupported, --show-supported or --show-all to see more details
===================================================================
Don't know how to list those packages or if they effect my goal. I do plan on upgrading to 18.04 LTS in the next month.