Ubuntu 16.04 no sound input with HP Pavilion dv7

Your ALSA info output shows several muted channels.

Please run alsamixer in a Terminal and unmute and increase volume to
100% on the following mixer channels:

Use the M key to toggle mute/unmute for each channel.

Simple mixer control 'Speaker',0
Simple mixer control 'Mic',0
Simple mixer control 'Internal Mic Boost',0

Test all audio jacks at the front and the back of your PC.

Dear Mark,
Thanks for your response and assistance. I really appreciate it. I've done what you instructed, but the input channel in my sound settings is still flatlining.

There is an audible sound when I mute and unmute the internal microphone in alsamixer, but there's no input from the mic coming through to software programs.

Here is the output of alsa-info after maxing all possible channels via alsamixer: http://www.alsa-project.org/db/?f=0f94fd099ecf9def8f6607ceec3632c3107ec413

I've also pasted the output below:

!!################################
!!ALSA Information Script v 0.4.64
!!################################

!!Script ran on: Tue Nov 1 11:29:45 UTC 2016

!!Linux Distribution
!!------------------

Ubuntu 16.04.1 LTS \n \l DISTRIB_ID=Ubuntu DISTRIB_DESCRIPTION="Ubuntu 16.04.1 LTS" NAME="Ubuntu" ID=ubuntu ID_LIKE=debian PRETTY_NAME="Ubuntu 16.04.1 LTS" HOME_URL="http://www.ubuntu.com/" SUPPORT_URL="http://help.ubuntu.com/" BUG_REPORT_URL="http://bugs.launchpad.net/ubuntu/" UBUNTU_CODENAME=xenial

!!DMI Information
!!---------------

Manufacturer: Hewlett-Packard
Product Name: HP Pavilion dv7 Notebook PC
Product Version: 058E110000244710000620100
Firmware Version: F.1A

!!Kernel Information
!!------------------

Kernel release: 4.4.0-45-generic
Operating System: GNU/Linux
Architecture: x86_64
Processor: x86_64
SMP Enabled: Yes

!!ALSA Version
!!------------

Driver version: k4.4.0-45-generic
Library version: 1.1.0
Utilities version: 1.1.0

!!Loaded ALSA modules
!!-------------------

snd_hda_intel

!!Sound Servers on this system
!!----------------------------

Pulseaudio:
      Installed - Yes (/usr/bin/pulseaudio)
      Running - Yes

ESound Daemon:
      Installed - Yes (/usr/bin/esd)
      Running - No

!!Soundcards recognised by ALSA
!!-----------------------------

 0 [PCH ]: HDA-Intel - HDA Intel PCH
                      HDA Intel PCH at 0xc7500000 irq 37

!!PCI Soundcards installed in the system
!!--------------------------------------

00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 05)

!!Advanced information - PCI Vendor/Device/Subsystem ID's
!!-------------------------------------------------------

00:1b.0 0403: 8086:1c20 (rev 05)
 Subsystem: 103c:1659

!!Modprobe options (Sound related)
!!--------------------------------

snd_pcsp: index=-2
snd_usb_audio: index=-2
snd_atiixp_modem: index=-2
snd_intel8x0m: index=-2
snd_via82xx_modem: index=-2
snd_atiixp_modem: index=-2
snd_intel8x0m: index=-2
snd_via82xx_modem: index=-2
snd_usb_audio: index=-2
snd_usb_caiaq: index=-2
snd_usb_ua101: index=-2
snd_usb_us122l: index=-2
snd_usb_usx2y: index=-2
snd_cmipci: mpu_port=0x330 fm_port=0x388
snd_pcsp: index=-2
snd_usb_audio: index=-2
snd_hda_intel: probe_mask=1 model=auto
snd_hda_intel: model=hp-dv5
snd_hda_intel: enable_msi=1

!!Loaded sound module options
!!---------------------------

!!Module: snd_hda_intel
 align_buffer_size : -1
 bdl_pos_adj : 1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
 beep_mode : N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N
 enable : Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y
 enable_msi : 1
 id : (null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null)
 index : -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
 jackpoll_ms : 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
 model : hp-dv5,(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null)
 patch : (null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null)
 position_fix : -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
 power_save : 0
 power_save_controller : N
 probe_mask : 1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
 probe_only : 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
 single_cmd : N
 snoop : -1

!!HDA-Intel Codec information
!!---------------------------
--startcollapse--

Codec: IDT 92HD81B1X5
Address: 0
AFG Function Id: 0x1 (unsol 1)
Vendor Id: 0x111d7605
Subsystem Id: 0x103c1659
Revision Id: 0x100105
No Modem Function Group found
Default PCM:
    rates [0x5e0]: 44100 48000 88200 96000 192000
    bits [0xe]: 16 20 24
    formats [0x1]: PCM
Default Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x27, mute=0
Default Amp-Out caps: ofs=0x7f, nsteps=0x7f, stepsize=0x02, mute=1
State of AFG node 0x01:
  Power states: D0 D1 D2 D3 D3cold S3D3cold CLKSTOP EPSS
  Power: setting=D0, actual=D0
GPIO: io=3, o=0, i=0, unsolicited=1, wake=1
  IO[0]: enable=1, dir=1, wake=0, sticky=0, data=0, unsol=0
  IO[1]: enable=0, dir=0, wake=0, sticky=0, data=0, unsol=0
  IO[2]: enable=0, dir=0, wake=0, sticky=0, data=0, unsol=0
Power-Map: 0x36
Node 0x0a [Pin Complex] wcaps 0x400583: Stereo Amp-In
  Control: name="Mic Boost Volume", index=0, device=0
    ControlAmp: chs=3, dir=In, idx=0, ofs=0
  Amp-In caps: N/A
  Amp-In vals: [0x03 0x03]
  Pincap 0x0001173c: IN OUT HP EAPD Detect
    Vref caps: HIZ 50 GRD 80
  EAPD 0x2: EAPD
  Pin Default 0x40f000f0: [N/A] Other at Ext N/A
    Conn = Unknown, Color = Unknown
    DefAssociation = 0xf, Sequence = 0x0
  Pin-ctls: 0x24: IN VREF_80
  Unsolicited: tag=02, enabled=1
  Power states:
  Power: setting=D3, actual=D3
  Connection: 3
     0x13* 0x14 0x1c
Node 0x0b [Pin Complex] wcaps 0x400581: Stereo
  Pincap 0x0001001c: OUT HP EAPD Detect
  EAPD 0x2: EAPD
  Pin Default 0x0221101f: [Jack] HP Out at Ext Front
    Conn = 1/8, Color = Black
    DefAssociation = 0x1, Sequence = 0xf
  Pin-ctls: 0xc0: OUT HP
  Unsolicited: tag=01, enabled=1
  Power states:
  Power: setting=D0, actual=D0
  Connection: 3
     0x13 0x14 0x1c*
Node 0x0c [Pin Complex] wcaps 0x400583: Stereo Amp-In
  Amp-In caps: N/A
  Amp-In vals: [0x00 0x00]
  Pincap 0x00011734: IN OUT EAPD Detect
    Vref caps: HIZ 50 GRD 80
  EAPD 0x2: EAPD
  Pin Default 0x02a11020: [Jack] Mic at Ext Front
    Conn = 1/8, Color = Black
    DefAssociation = 0x2, Sequence = 0x0
  Pin-ctls: 0x00: VREF_HIZ
  Unsolicited: tag=00, enabled=0
  Power states:
  Power: setting=D3, actual=D3
  Connection: 3
     0x13* 0x14 0x1c
Node 0x0d [Pin Complex] wcaps 0x400501: Stereo
  Pincap 0x00010050: OUT EAPD Balanced
  EAPD 0x2: EAPD
  Pin Default 0x40f000f0: [N/A] Other at Ext N/A
    Conn = Unknown, Color = Unknown
    DefAssociation = 0xf, Sequence = 0x0
  Pin-ctls: 0x40: OUT
  Power states:
  Power: setting=D0, actual=D0
  Connection: 3
     0x13 0x14* 0x1c
Node 0x0e [Pin Complex] wcaps 0x400583: Stereo Amp-In
  Amp-In caps: N/A
  Amp-In vals: [0x00 0x00]
  Pincap 0x00010034: IN OUT EAPD Detect
  EAPD 0x2: EAPD
  Pin Default 0x40f000f0: [N/A] Other at Ext N/A
    Conn = Unknown, Color = Unknown
    DefAssociation = 0xf, Sequence = 0x0
  Pin-ctls: 0x00:
  Unsolicited: tag=00, enabled=0
  Power states:
  Power: setting=D3, actual=D3
  Connection: 3
     0x13* 0x14 0x1c
Node 0x0f [Pin Complex] wcaps 0x400583: Stereo Amp-In
  Amp-In caps: N/A
  Amp-In vals: [0x00 0x00]
  Pincap 0x00010034: IN OUT EAPD Detect
  EAPD 0x2: EAPD
  Pin Default 0x92170110: [Fixed] Speaker at Int Front
    Conn = Analog, Color = Unknown
    DefAssociation = 0x1, Sequence = 0x0
    Misc = NO_PRESENCE
  Pin-ctls: 0x40: OUT
  Unsolicited: tag=00, enabled=0
  Power states:
  Power: setting=D3, actual=D3
  Connection: 3
     0x13* 0x14 0x1c
Node 0x10 [Pin Complex] wcaps 0x400500: Mono
  Pincap 0x00000010: OUT
  Pin Default 0x40f000f0: [N/A] Other at Ext N/A
    Conn = Unknown, Color = Unknown
    DefAssociation = 0xf, Sequence = 0x0
  Pin-ctls: 0x40: OUT
  Power states:
  Power: setting=D0, actual=D0
  Connection: 1
     0x1a
Node 0x11 [Pin Complex] wcaps 0x400483: Stereo Amp-In
  Control: name="Internal Mic Boost Volume", index=0, device=0
    ControlAmp: chs=3, dir=In, idx=0, ofs=0
  Amp-In caps: N/A
  Amp-In vals: [0x03 0x03]
  Pincap 0x00000024: IN Detect
  Pin Default 0xd5a30130: [Both] Mic at Int Top
    Conn = ATAPI, Color = Unknown
    DefAssociation = 0x3, Sequence = 0x0
    Misc = NO_PRESENCE
  Pin-ctls: 0x20: IN
  Unsolicited: tag=00, enabled=0
  Power states:
  Power: setting=D0, actual=D0
Node 0x12 [Vendor Defined Widget] wcaps 0xf00503: Stereo Amp-In
  Amp-In caps: N/A
  Amp-In vals: [0x00 0x00]
  Power states:
  Power: setting=D0, actual=D0
  Connection: 1
     0x20
Node 0x13 [Audio Output] wcaps 0xd0c05: Stereo Amp-Out R/L
  Control: name="Headphone Playback Volume", index=0, device=0
    ControlAmp: chs=3, dir=Out, idx=0, ofs=0
  Control: name="Headphone Playback Switch", index=0, device=0
    ControlAmp: chs=3, dir=Out, idx=0, ofs=0
  Device: name="92HD81B1X5 Analog", type="Audio", device=0
  Amp-Out caps: N/A
  Amp-Out vals: [0x7f 0x7f]
  Converter: stream=5, channel=0
  Power states:
  Power: setting=D0, actual=D0
  Delay: 13 samples
Node 0x14 [Audio Output] wcaps 0xd0c05: Stereo Amp-Out R/L
  Control: name="Speaker Playback Volume", index=0, device=0
    ControlAmp: chs=3, dir=Out, idx=0, ofs=0
  Control: name="Speaker Playback Switch", index=0, device=0
    ControlAmp: chs=3, dir=Out, idx=0, ofs=0
  Amp-Out caps: N/A
  Amp-Out vals: [0x02 0x7f]
  Converter: stream=5, channel=0
  Power states:
  Power: setting=D0, actual=D0
  Delay: 13 samples
Node 0x15 [Audio Input] wcaps 0x1d0541: Stereo
  Device: name="92HD81B1X5 Analog", type="Audio", device=0
  Converter: stream=1, channel=0
  SDI-Select: 0
  Power states:
  Power: setting=D0, actual=D0
  Delay: 13 samples
  Connection: 1
     0x17
  Processing caps: benign=0, ncoeff=0
Node 0x16 [Audio Input] wcaps 0x1d0541: Stereo
  Converter: stream=0, channel=0
  SDI-Select: 0
  Power states:
  Power: setting=D3, actual=D3
  Delay: 13 samples
  Connection: 1
     0x18
  Processing caps: benign=0, ncoeff=0
Node 0x17 [Audio Selector] wcaps 0x300d0d: Stereo Amp-Out R/L
  Control: name="Capture Volume", index=0, device=0
    ControlAmp: chs=3, dir=Out, idx=0, ofs=0
  Control: name="Capture Switch", index=0, device=0
    ControlAmp: chs=3, dir=Out, idx=0, ofs=0
  Amp-Out caps: ofs=0x00, nsteps=0x0f, stepsize=0x05, mute=1
  Amp-Out vals: [0x0f 0x0f]
  Power states:
  Power: setting=D0, actual=D0
  Connection: 7
     0x0c 0x0e 0x0f 0x1b 0x11* 0x12 0x0a
Node 0x18 [Audio Selector] wcaps 0x300d0d: Stereo Amp-Out R/L
  Amp-Out caps: ofs=0x00, nsteps=0x0f, stepsize=0x05, mute=1
  Amp-Out vals: [0x80 0x80]
  Power states:
  Power: setting=D3, actual=D3
  Connection: 7
     0x0c* 0x0e 0x0f 0x1b 0x11 0x12 0x0a
Node 0x19 [Audio Selector] wcaps 0x300501: Stereo
  Power states:
  Power: setting=D0, actual=D0
  Connection: 3
     0x13 0x14 0x1c*
Node 0x1a [Audio Mixer] wcaps 0x200500: Mono
  Power states:
  Power: setting=D0, actual=D0
  Connection: 1
     0x19
Node 0x1b [Audio Mixer] wcaps 0x20050b: Stereo Amp-In
  Control: name="Mic Playback Volume", index=0, device=0
    ControlAmp: chs=3, dir=In, idx=5, ofs=0
  Control: name="Mic Playback Switch", index=0, device=0
    ControlAmp: chs=3, dir=In, idx=5, ofs=0
  Amp-In caps: ofs=0x17, nsteps=0x1f, stepsize=0x05, mute=1
  Amp-In vals: [0x80 0x80] [0x80 0x80] [0x80 0x80] [0x17 0x17] [0x80 0x80] [0x1f 0x1f]
  Power states:
  Power: setting=D0, actual=D0
  Connection: 6
     0x0c 0x0e 0x0f 0x13 0x14 0x0a
Node 0x1c [Audio Selector] wcaps 0x30050d: Stereo Amp-Out
  Amp-Out caps: ofs=0x1f, nsteps=0x1f, stepsize=0x05, mute=1
  Amp-Out vals: [0x1f 0x1f]
  Power states:
  Power: setting=D0, actual=D0
  Connection: 1
     0x1b
Node 0x1d [Audio Output] wcaps 0x4061d: Stereo Digital Amp-Out
  Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
  Amp-Out vals: [0x00 0x00]
  Converter: stream=0, channel=0
  Digital:
  Digital category: 0x0
  IEC Coding Type: 0x0
  PCM:
    rates [0x5e0]: 44100 48000 88200 96000 192000
    bits [0xe]: 16 20 24
    formats [0x5]: PCM AC3
  Power states:
  Power: setting=D3, actual=D3
  Delay: 4 samples
Node 0x1e [Audio Output] wcaps 0x4061d: Stereo Digital Amp-Out
  Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
  Amp-Out vals: [0x00 0x00]
  Converter: stream=0, channel=0
  Digital:
  Digital category: 0x0
  IEC Coding Type: 0x0
  PCM:
    rates [0x5e0]: 44100 48000 88200 96000 192000
    bits [0xe]: 16 20 24
    formats [0x5]: PCM AC3
  Power states:
  Power: setting=D3, actual=D3
  Delay: 4 samples
Node 0x1f [Pin Complex] wcaps 0x400781: Stereo Digital
  Pincap 0x00000014: OUT Detect
  Pin Default 0x40f000f0: [N/A] Other at Ext N/A
    Conn = Unknown, Color = Unknown
    DefAssociation = 0xf, Sequence = 0x0
  Pin-ctls: 0x00:
  Unsolicited: tag=00, enabled=0
  Power states:
  Power: setting=D3, actual=D3
  Connection: 1
     0x1d
Node 0x20 [Pin Complex] wcaps 0x400781: Stereo Digital
  Pincap 0x00000034: IN OUT Detect
  Pin Default 0x40f000f0: [N/A] Other at Ext N/A
    Conn = Unknown, Color = Unknown
    DefAssociation = 0xf, Sequence = 0x0
  Pin-ctls: 0x00:
  Unsolicited: tag=00, enabled=0
  Power states:
  Power: setting=D3, actual=D3
  Connection: 1
     0x1e
Node 0x21 [Beep Generator Widget] wcaps 0x70040c: Mono Amp-Out
  Control: name="Beep Playback Switch", index=0, device=0
    ControlAmp: chs=1, dir=Out, idx=0, ofs=0
  Control: name="Beep Playback Volume", index=0, device=0
    ControlAmp: chs=1, dir=Out, idx=0, ofs=0
  Amp-Out caps: ofs=0x03, nsteps=0x03, stepsize=0x17, mute=1
  Amp-Out vals: [0x03]
  Power states:
  Power: setting=D0, actual=D0
Node 0x22 [Vendor Defined Widget] wcaps 0xf00000: Mono
--endcollapse--

!!ALSA Device nodes
!!-----------------

crw-rw---- 1 root audio 116, 2 Nov 1 12:21 /dev/snd/controlC0
crw-rw---- 1 root audio 116, 5 Nov 1 12:21 /dev/snd/hwC0D0
crw-rw---- 1 root audio 116, 4 Nov 1 20:13 /dev/snd/pcmC0D0c
crw-rw---- 1 root audio 116, 3 Nov 1 20:24 /dev/snd/pcmC0D0p
crw-rw---- 1 root audio 116, 1 Nov 1 12:21 /dev/snd/seq
crw-rw---- 1 root audio 116, 33 Nov 1 12:21 /dev/snd/timer

/dev/snd/by-path:
total 0
drwxr-xr-x 2 root root 60 Nov 1 12:21 .
drwxr-xr-x 3 root root 180 Nov 1 12:21 ..
lrwxrwxrwx 1 root root 12 Nov 1 12:21 pci-0000:00:1b.0 -> ../controlC0

!!Aplay/Arecord output
!!--------------------

APLAY

**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: 92HD81B1X5 Analog [92HD81B1X5 Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

ARECORD

**** List of CAPTURE Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: 92HD81B1X5 Analog [92HD81B1X5 Analog]
  Subdevices: 0/1
  Subdevice #0: subdevice #0

!!Amixer output
!!-------------

!!-------Mixer controls for card 0 [PCH]

Card hw:0 'PCH'/'HDA Intel PCH at 0xc7500000 irq 37'
  Mixer name : 'IDT 92HD81B1X5'
  Components : 'HDA:111d7605,103c1659,00100105'
  Controls : 25
  Simple ctrls : 12
Simple mixer control 'Master',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined
  Playback channels: Mono
  Limits: Playback 0 - 127
  Mono: Playback 127 [100%] [0.00dB] [on]
Simple mixer control 'Headphone',0
  Capabilities: pvolume pswitch
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 127
  Mono:
  Front Left: Playback 127 [100%] [0.00dB] [on]
  Front Right: Playback 127 [100%] [0.00dB] [on]
Simple mixer control 'Speaker',0
  Capabilities: pvolume pswitch
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 127
  Mono:
  Front Left: Playback 2 [2%] [-93.75dB] [on]
  Front Right: Playback 127 [100%] [0.00dB] [on]
Simple mixer control 'PCM',0
  Capabilities: pvolume
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 255
  Mono:
  Front Left: Playback 254 [100%] [-0.20dB]
  Front Right: Playback 255 [100%] [0.00dB]
Simple mixer control 'Mic',0
  Capabilities: pvolume pswitch
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Mono:
  Front Left: Playback 31 [100%] [12.00dB] [on]
  Front Right: Playback 31 [100%] [12.00dB] [on]
Simple mixer control 'Mic Boost',0
  Capabilities: volume
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: 0 - 3
  Front Left: 3 [100%] [30.00dB]
  Front Right: 3 [100%] [30.00dB]
Simple mixer control 'Beep',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined
  Playback channels: Mono
  Limits: Playback 0 - 3
  Mono: Playback 3 [100%] [0.00dB] [on]
Simple mixer control 'Capture',0
  Capabilities: cvolume cswitch
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 15
  Front Left: Capture 15 [100%] [22.50dB] [on]
  Front Right: Capture 15 [100%] [22.50dB] [on]
Simple mixer control 'Auto-Mute Mode',0
  Capabilities: enum
  Items: 'Disabled' 'Enabled'
  Item0: 'Disabled'
Simple mixer control 'Digital',0
  Capabilities: cvolume
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 120
  Front Left: Capture 119 [99%] [29.50dB]
  Front Right: Capture 119 [99%] [29.50dB]
Simple mixer control 'Internal Mic Boost',0
  Capabilities: volume
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: 0 - 3
  Front Left: 3 [100%] [30.00dB]
  Front Right: 3 [100%] [30.00dB]
Simple mixer control 'Loopback Mixing',0
  Capabilities: enum
  Items: 'Disabled' 'Enabled'
  Item0: 'Enabled'

!!Alsactl output
!!--------------

--startcollapse--
state.PCH {
 control.1 {
  iface MIXER
  name 'Headphone Playback Volume'
  value.0 127
  value.1 127
  comment {
   access 'read write'
   type INTEGER
   count 2
   range '0 - 127'
   dbmin -9999999
   dbmax 0
   dbvalue.0 0
   dbvalue.1 0
  }
 }
 control.2 {
  iface MIXER
  name 'Headphone Playback Switch'
  value.0 true
  value.1 true
  comment {
   access 'read write'
   type BOOLEAN
   count 2
  }
 }
 control.3 {
  iface MIXER
  name 'Speaker Playback Volume'
  value.0 2
  value.1 127
  comment {
   access 'read write'
   type INTEGER
   count 2
   range '0 - 127'
   dbmin -9999999
   dbmax 0
   dbvalue.0 -9375
   dbvalue.1 0
  }
 }
 control.4 {
  iface MIXER
  name 'Speaker Playback Switch'
  value.0 true
  value.1 true
  comment {
   access 'read write'
   type BOOLEAN
   count 2
  }
 }
 control.5 {
  iface MIXER
  name 'Loopback Mixing'
  value Enabled
  comment {
   access 'read write'
   type ENUMERATED
   count 1
   item.0 Disabled
   item.1 Enabled
  }
 }
 control.6 {
  iface MIXER
  name 'Mic Playback Volume'
  value.0 31
  value.1 31
  comment {
   access 'read write'
   type INTEGER
   count 2
   range '0 - 31'
   dbmin -3450
   dbmax 1200
   dbvalue.0 1200
   dbvalue.1 1200
  }
 }
 control.7 {
  iface MIXER
  name 'Mic Playback Switch'
  value.0 true
  value.1 true
  comment {
   access 'read write'
   type BOOLEAN
   count 2
  }
 }
 control.8 {
  iface MIXER
  name 'Auto-Mute Mode'
  value Disabled
  comment {
   access 'read write'
   type ENUMERATED
   count 1
   item.0 Disabled
   item.1 Enabled
  }
 }
 control.9 {
  iface MIXER
  name 'Capture Volume'
  value.0 15
  value.1 15
  comment {
   access 'read write'
   type INTEGER
   count 2
   range '0 - 15'
   dbmin 0
   dbmax 2250
   dbvalue.0 2250
   dbvalue.1 2250
  }
 }
 control.10 {
  iface MIXER
  name 'Capture Switch'
  value.0 true
  value.1 true
  comment {
   access 'read write'
   type BOOLEAN
   count 2
  }
 }
 control.11 {
  iface MIXER
  name 'Internal Mic Boost Volume'
  value.0 3
  value.1 3
  comment {
   access 'read write'
   type INTEGER
   count 2
   range '0 - 3'
   dbmin 0
   dbmax 3000
   dbvalue.0 3000
   dbvalue.1 3000
  }
 }
 control.12 {
  iface MIXER
  name 'Mic Boost Volume'
  value.0 3
  value.1 3
  comment {
   access 'read write'
   type INTEGER
   count 2
   range '0 - 3'
   dbmin 0
   dbmax 3000
   dbvalue.0 3000
   dbvalue.1 3000
  }
 }
 control.13 {
  iface MIXER
  name 'Beep Playback Switch'
  value true
  comment {
   access 'read write'
   type BOOLEAN
   count 1
  }
 }
 control.14 {
  iface MIXER
  name 'Beep Playback Volume'
  value 3
  comment {
   access 'read write'
   type INTEGER
   count 1
   range '0 - 3'
   dbmin -1800
   dbmax 0
   dbvalue.0 0
  }
 }
 control.15 {
  iface MIXER
  name 'Master Playback Volume'
  value 127
  comment {
   access 'read write'
   type INTEGER
   count 1
   range '0 - 127'
   dbmin -9999999
   dbmax 0
   dbvalue.0 0
  }
 }
 control.16 {
  iface MIXER
  name 'Master Playback Switch'
  value true
  comment {
   access 'read write'
   type BOOLEAN
   count 1
  }
 }
 control.17 {
  iface CARD
  name 'Internal Mic Phantom Jack'
  value true
  comment {
   access read
   type BOOLEAN
   count 1
  }
 }
 control.18 {
  iface CARD
  name 'Mic Jack'
  value false
  comment {
   access read
   type BOOLEAN
   count 1
  }
 }
 control.19 {
  iface CARD
  name 'Headphone Jack'
  value false
  comment {
   access read
   type BOOLEAN
   count 1
  }
 }
 control.20 {
  iface CARD
  name 'Speaker Front Phantom Jack'
  value true
  comment {
   access read
   type BOOLEAN
   count 1
  }
 }
 control.21 {
  iface CARD
  name 'Speaker Surround Phantom Jack'
  value true
  comment {
   access read
   type BOOLEAN
   count 1
  }
 }
 control.22 {
  iface PCM
  name 'Playback Channel Map'
  value.0 0
  value.1 0
  value.2 0
  value.3 0
  comment {
   access read
   type INTEGER
   count 4
   range '0 - 36'
  }
 }
 control.23 {
  iface PCM
  name 'Capture Channel Map'
  value.0 3
  value.1 4
  comment {
   access read
   type INTEGER
   count 2
   range '0 - 36'
  }
 }
 control.24 {
  iface MIXER
  name 'PCM Playback Volume'
  value.0 254
  value.1 255
  comment {
   access 'read write user'
   type INTEGER
   count 2
   range '0 - 255'
   tlv '0000000100000008ffffec1400000014'
   dbmin -5100
   dbmax 0
   dbvalue.0 -20
   dbvalue.1 0
  }
 }
 control.25 {
  iface MIXER
  name 'Digital Capture Volume'
  value.0 119
  value.1 119
  comment {
   access 'read write user'
   type INTEGER
   count 2
   range '0 - 120'
   tlv '0000000100000008fffff44800000032'
   dbmin -3000
   dbmax 3000
   dbvalue.0 2950
   dbvalue.1 2950
  }
 }
}
--endcollapse--

!!All Loaded Modules
!!------------------

Module
uas
usb_storage
cdc_acm
nvram
msr
rfcomm
xt_CHECKSUM
iptable_mangle
ipt_MASQUERADE
nf_nat_masquerade_ipv4
iptable_nat
nf_conntrack_ipv4
nf_defrag_ipv4
nf_nat_ipv4
nf_nat
nf_conntrack
xt_tcpudp
bridge
pci_stub
vboxpci
vboxnetadp
vboxnetflt
stp
llc
iptable_filter
ip_tables
x_tables
vboxdrv
drbg
ansi_cprng
ctr
ccm
bnep
btusb
btrtl
btbcm
btintel
bluetooth
intel_rapl
x86_pkg_temp_thermal
intel_powerclamp
kvm_intel
kvm
irqbypass
crct10dif_pclmul
crc32_pclmul
aesni_intel
aes_x86_64
hp_wmi
sparse_keymap
arc4
iwldvm
snd_hda_codec_idt
snd_hda_codec_generic
lrw
snd_hda_intel
mac80211
snd_hda_codec
snd_hda_core
snd_hwdep
gf128mul
snd_pcm
snd_seq_midi
glue_helper
snd_seq_midi_event
snd_rawmidi
ablk_helper
snd_seq
cryptd
snd_seq_device
snd_timer
input_leds
joydev
snd
serio_raw
rtsx_pci_ms
iwlwifi
soundcore
memstick
cfg80211
lpc_ich
hp_accel
lis3lv02d
mei_me
input_polldev
mei
shpchp
mac_hid
binfmt_misc
cuse
sbs
sbshc
max6650
coretemp
parport_pc
ppdev
lp
parport
autofs4
raid10
raid456
async_raid6_recov
async_memcpy
async_pq
async_xor
async_tx
xor
raid6_pq
libcrc32c
raid0
multipath
linear
hid_generic
usbhid
hid
raid1
rtsx_pci_sdmmc
amdkfd
amd_iommu_v2
i915
radeon
ttm
i2c_algo_bit
drm_kms_helper
psmouse
ahci
syscopyarea
sysfillrect
libahci
sysimgblt
fb_sys_fops
drm
r8169
rtsx_pci
mii
wmi
video
fjes

!!Sysfs Files
!!-----------

/sys/class/sound/hwC0D0/init_pin_configs:
0x0a 0x40f000f0
0x0b 0x0221101f
0x0c 0x02a11020
0x0d 0x40f000f0
0x0e 0x40f000f0
0x0f 0x92170110
0x10 0x40f000f0
0x11 0xd5a30130
0x1f 0x40f000f0
0x20 0x40f000f0

/sys/class/sound/hwC0D0/driver_pin_configs:
0x0a 0x03a12050
0x0b 0x0321201f
0x0c 0x40f000f0
0x0d 0x90170110
0x0e 0x40f000f0
0x0f 0x40f000f0
0x10 0x90170110
0x11 0xd5a30140
0x1f 0x40f000f0
0x20 0x40f000f0

/sys/class/sound/hwC0D0/user_pin_configs:

/sys/class/sound/hwC0D0/init_verbs:

/sys/class/sound/hwC0D0/hints:

!!ALSA/HDA dmesg
!!--------------

[ 14.216524] iwlwifi 0000:0d:00.0: loaded firmware version 39.31.5.1 build 35138 op_mode iwldvm
[ 14.471505] snd_hda_codec_idt hdaudioC0D0: autoconfig for 92HD81B1X5: line_outs=2 (0x10/0xd/0x0/0x0/0x0) type:speaker
[ 14.471511] snd_hda_codec_idt hdaudioC0D0: speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
[ 14.471514] snd_hda_codec_idt hdaudioC0D0: hp_outs=1 (0xb/0x0/0x0/0x0/0x0)
[ 14.471516] snd_hda_codec_idt hdaudioC0D0: mono: mono_out=0x0
[ 14.471518] snd_hda_codec_idt hdaudioC0D0: inputs:
[ 14.471521] snd_hda_codec_idt hdaudioC0D0: Internal Mic=0x11
[ 14.471523] snd_hda_codec_idt hdaudioC0D0: Mic=0xa
[ 14.508660] input: ST LIS3LV02DL Accelerometer as /devices/platform/lis3lv02d/input/input13
[ 14.509222] input: HDA Intel PCH Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input11
[ 14.509274] input: HDA Intel PCH Headphone as /devices/pci0000:00/0000:00:1b.0/sound/card0/input12
[ 14.659713] iwlwifi 0000:0d:00.0: CONFIG_IWLWIFI_DEBUG disabled

Here's the file output of alsactl:
state.PCH {
 control.1 {
  iface MIXER
  name 'Headphone Playback Volume'
  value.0 127
  value.1 127
  comment {
   access 'read write'
   type INTEGER
   count 2
   range '0 - 127'
   dbmin -9999999
   dbmax 0
   dbvalue.0 0
   dbvalue.1 0
  }
 }
 control.2 {
  iface MIXER
  name 'Headphone Playback Switch'
  value.0 true
  value.1 true
  comment {
   access 'read write'
   type BOOLEAN
   count 2
  }
 }
 control.3 {
  iface MIXER
  name 'Speaker Playback Volume'
  value.0 2
  value.1 127
  comment {
   access 'read write'
   type INTEGER
   count 2
   range '0 - 127'
   dbmin -9999999
   dbmax 0
   dbvalue.0 -9375
   dbvalue.1 0
  }
 }
 control.4 {
  iface MIXER
  name 'Speaker Playback Switch'
  value.0 true
  value.1 true
  comment {
   access 'read write'
   type BOOLEAN
   count 2
  }
 }
 control.5 {
  iface MIXER
  name 'Loopback Mixing'
  value Enabled
  comment {
   access 'read write'
   type ENUMERATED
   count 1
   item.0 Disabled
   item.1 Enabled
  }
 }
 control.6 {
  iface MIXER
  name 'Mic Playback Volume'
  value.0 31
  value.1 31
  comment {
   access 'read write'
   type INTEGER
   count 2
   range '0 - 31'
   dbmin -3450
   dbmax 1200
   dbvalue.0 1200
   dbvalue.1 1200
  }
 }
 control.7 {
  iface MIXER
  name 'Mic Playback Switch'
  value.0 true
  value.1 true
  comment {
   access 'read write'
   type BOOLEAN
   count 2
  }
 }
 control.8 {
  iface MIXER
  name 'Auto-Mute Mode'
  value Disabled
  comment {
   access 'read write'
   type ENUMERATED
   count 1
   item.0 Disabled
   item.1 Enabled
  }
 }
 control.9 {
  iface MIXER
  name 'Capture Volume'
  value.0 15
  value.1 15
  comment {
   access 'read write'
   type INTEGER
   count 2
   range '0 - 15'
   dbmin 0
   dbmax 2250
   dbvalue.0 2250
   dbvalue.1 2250
  }
 }
 control.10 {
  iface MIXER
  name 'Capture Switch'
  value.0 true
  value.1 true
  comment {
   access 'read write'
   type BOOLEAN
   count 2
  }
 }
 control.11 {
  iface MIXER
  name 'Internal Mic Boost Volume'
  value.0 3
  value.1 3
  comment {
   access 'read write'
   type INTEGER
   count 2
   range '0 - 3'
   dbmin 0
   dbmax 3000
   dbvalue.0 3000
   dbvalue.1 3000
  }
 }
 control.12 {
  iface MIXER
  name 'Mic Boost Volume'
  value.0 3
  value.1 3
  comment {
   access 'read write'
   type INTEGER
   count 2
   range '0 - 3'
   dbmin 0
   dbmax 3000
   dbvalue.0 3000
   dbvalue.1 3000
  }
 }
 control.13 {
  iface MIXER
  name 'Beep Playback Switch'
  value true
  comment {
   access 'read write'
   type BOOLEAN
   count 1
  }
 }
 control.14 {
  iface MIXER
  name 'Beep Playback Volume'
  value 3
  comment {
   access 'read write'
   type INTEGER
   count 1
   range '0 - 3'
   dbmin -1800
   dbmax 0
   dbvalue.0 0
  }
 }
 control.15 {
  iface MIXER
  name 'Master Playback Volume'
  value 127
  comment {
   access 'read write'
   type INTEGER
   count 1
   range '0 - 127'
   dbmin -9999999
   dbmax 0
   dbvalue.0 0
  }
 }
 control.16 {
  iface MIXER
  name 'Master Playback Switch'
  value true
  comment {
   access 'read write'
   type BOOLEAN
   count 1
  }
 }
 control.17 {
  iface CARD
  name 'Internal Mic Phantom Jack'
  value true
  comment {
   access read
   type BOOLEAN
   count 1
  }
 }
 control.18 {
  iface CARD
  name 'Mic Jack'
  value false
  comment {
   access read
   type BOOLEAN
   count 1
  }
 }
 control.19 {
  iface CARD
  name 'Headphone Jack'
  value false
  comment {
   access read
   type BOOLEAN
   count 1
  }
 }
 control.20 {
  iface CARD
  name 'Speaker Front Phantom Jack'
  value true
  comment {
   access read
   type BOOLEAN
   count 1
  }
 }
 control.21 {
  iface CARD
  name 'Speaker Surround Phantom Jack'
  value true
  comment {
   access read
   type BOOLEAN
   count 1
  }
 }
 control.22 {
  iface PCM
  name 'Playback Channel Map'
  value.0 0
  value.1 0
  value.2 0
  value.3 0
  comment {
   access read
   type INTEGER
   count 4
   range '0 - 36'
  }
 }
 control.23 {
  iface PCM
  name 'Capture Channel Map'
  value.0 3
  value.1 4
  comment {
   access read
   type INTEGER
   count 2
   range '0 - 36'
  }
 }
 control.24 {
  iface MIXER
  name 'PCM Playback Volume'
  value.0 254
  value.1 255
  comment {
   access 'read write user'
   type INTEGER
   count 2
   range '0 - 255'
   tlv '0000000100000008ffffec1400000014'
   dbmin -5100
   dbmax 0
   dbvalue.0 -20
   dbvalue.1 0
  }
 }
 control.25 {
  iface MIXER
  name 'Digital Capture Volume'
  value.0 119
  value.1 119
  comment {
   access 'read write user'
   type INTEGER
   count 2
   range '0 - 120'
   tlv '0000000100000008fffff44800000032'
   dbmin -3000
   dbmax 3000
   dbvalue.0 2950
   dbvalue.1 2950
  }
 }
}

I have now seen your alsa-base.conf setup in 2 different ways:

1) snd_hda_intel: probe_mask=1 model=auto -> valid setup

2) snd_hda_intel: probe_mask=1 model=auto
snd_hda_intel: model=hp-dv5
snd_hda_intel: enable_msi=1

Setup 2 is invalid. It is not allowed to enable TWO different model options at the same time. And it would be unlikely for the model option hp-dv5 to work anyway, because it is normally only enabled when dealing with STAC92HD71B* audio codecs, which you do not have.

You need to test the ALSA model options one by one between reboots, not all at once.

I suggest trying the following model options, ONE by ONE (e.g. hp-dv7-4000 or hp-inv-led) :

STAC92HD83*
===========
  ref Reference board
  mic-ref Reference board with power management for ports
  dell-s14 Dell laptop
  dell-vostro-3500 Dell Vostro 3500 laptop
  hp-dv7-4000 HP dv-7 4000
  hp_cNB11_intquad HP CNB models with 4 speakers
  hp-zephyr HP Zephyr
  hp-led HP with broken BIOS for mute LED
  hp-inv-led HP with broken BIOS for inverted mute LED
  hp-mic-led HP with mic-mute LED
  headset-jack Dell Latitude with a 4-pin headset jack
  hp-envy-bass Pin fixup for HP Envy bass speaker (NID 0x0f)
  hp-envy-ts-bass Pin fixup for HP Envy TS bass speaker (NID 0x10)
  hp-bnb13-eq Hardware equalizer setup for HP laptops
  auto BIOS setup (default)

Source: https://www.kernel.org/doc/Documentation/sound/alsa/HD-Audio-Models.txt

And if that fails, I suggest installing Ubuntu package alsa-tools-gui.

Then run the hdajackretask command in a Terminal to start reconfiguring the pin IDs for your sound card.

Dear Mark,
Thanks again for the advice. I tried a number of different settings, including the ones you suggested and some that others had mentioned on forums for my laptop model. I was able to get the mic jack to work, but not the internal speakers on my PC. I'll try to follow your advice and use the hdajackretask command, but it will be a week or two before I can make the time to sit down and work on that.