I lost my sound after update:
orge2@jorge-Mate-20-4:~$ pactl --version
pactl 13.99.1
Compilado con libpulse 13.99.0
Linked con libpulse 13.99.0
jorge2@jorge-Mate-20-4:~$ pactl list short sinks
0       auto_null       module-null-sink.c      s16le 2ch 44100Hz       
jorge2@jorge-Mate-20-4:~$ lspci | grep Audio
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family 
High Definition Audio Controller (rev 05)

jorge2@jorge-Mate-20-4:~$ pacmd dump
### Configuration dump generated at Fri Jul 17 14:53:48 2020

### Configuration dump generated at Fri Jul 17 15:24:44 2020

load-module module-device-restore
load-module module-stream-restore
load-module module-card-restore
load-module module-augment-properties
load-module module-switch-on-port-available
load-module module-switch-on-connect
load-module module-udev-detect
load-module module-alsa-card device_id="0" name="pci-0000_00_1b.0" 
card_name="alsa_card.pci-0000_00_1b.0" namereg_fail=false tsched=yes 
fixed_latency_range=no ignore_dB=no deferred_volume=yes use_ucm=yes 
avoid_resampling=no card_properties="module-udev-detect.discovered=1"
load-module module-native-protocol-unix
load-module module-default-device-restore
load-module module-always-sink
load-module module-null-sink sink_name=auto_null 
sink_properties='device.description="Salida Ficticia"'
load-module module-intended-roles
load-module module-suspend-on-idle
load-module module-console-kit
load-module module-systemd-login
load-module module-position-event-sounds
load-module module-role-cork
load-module module-snap-policy
load-module module-filter-heuristics
load-module module-filter-apply
load-module module-x11-publish display=:0 xauthority=/home/jorge2/.Xauthority
load-module module-x11-cork-request display=:0 
load-module module-x11-xsmp display=:0 xauthority=/home/jorge2/.Xauthority 
load-module module-cli-protocol-unix

set-sink-volume auto_null 0x101b3
set-sink-mute auto_null no
suspend-sink auto_null yes

set-source-volume auto_null.monitor 0x10000
set-source-mute auto_null.monitor no
suspend-source auto_null.monitor yes

set-card-profile alsa_card.pci-0000_00_1b.0 off

set-default-sink auto_null
set-default-source auto_null.monitor

### EOF

You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to pulseaudio in Ubuntu.

  [SRU]There is no available audio entry in sound settings after execute
  suspend in 'Performance mode'

Status in HWE Next:
Status in OEM Priority Project:
  In Progress
Status in pulseaudio package in Ubuntu:
  Fix Committed
Status in pulseaudio source package in Bionic:
Status in pulseaudio source package in Eoan:
  Won't Fix
Status in pulseaudio source package in Focal:
  Fix Committed
Status in pulseaudio source package in Groovy:
  Fix Committed

Bug description:
  On some I+N machines (inlcuding lenovo and dell machines), after
  setting the graphic mode to perofermance mode, and open the gnome
  sound seting, run suspend/resume test, the audio devices will
  disappear from UI, instead a dummy audio shows on the UI, and from
  then on, the audio can't work anymore.

  The root cause is after resuming, the pulseaudio try to recover the
  PCM device, but at that moment, the devices nodes at /dev/snd/ are
  not accessible yet sometimes, it will make snd_pcm_open fail and
  the pulseaudio will calll unload_module to unload alsa audio card.
  I cherrpicked a fix from upstream, the fix adds retry and pa_msleep(),
  this will retry the snd_pcm_open() a couple of times if it fails.

  [Test Case]
  Install the pulseaudio wit this fix, set the graphic mode to
  performance mode, open the sound setting, then run suspend/resume 90
  times, after test check the audio devices on the UI, the speaker,
  digital mic are still on the UI, and they could work well.

  [Regression Risk]
  Low, this SRU just add retry and pa_msleep(), if the snd_pcm_open()
  doesn't fail, this patch will not introduce any change, if snd_pcm_open()
  fails, it just retry a couple of times, so it will not introduce the
  regression in theory.

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