Public bug reported:

Desktop system audio failure upon resume from suspend.  Event occurs
approx. 50% of time and can be remedied with sudo alsa reload.  Firefox
is program where problem is first noted but no sound from any source is
working.  Using GUI for sound setting will not correct problem.

KDE Plasma 5.5.5
Kernel 4.10.0-38-generic
alsa-utils:
  Installed: 1.1.0-0ubuntu5
  Candidate: 1.1.0-0ubuntu5
  Version table:
 *** 1.1.0-0ubuntu5 500
        500 http://us.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
        100 /var/lib/dpkg/status

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: firefox 56.0+build6-0ubuntu0.16.04.2
ProcVersionSignature: Ubuntu 4.10.0-38.42~16.04.1-generic 4.10.17
Uname: Linux 4.10.0-38-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia
AddonCompatCheckDisabled: False
ApportVersion: 2.20.1-0ubuntu2.10
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC1:  rob        1489 F.... pulseaudio
 /dev/snd/controlC0:  rob        1489 F.... pulseaudio
BuildID: 20171003101344
Channel: Unavailable
CurrentDesktop: KDE
Date: Fri Nov  3 15:50:31 2017
EcryptfsInUse: Yes
ExecutablePath: /usr/lib/firefox/firefox
Extensions: extensions.sqlite corrupt or missing
ForcedLayersAccel: False
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
IncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini 
or extensions.sqlite)
InstallationDate: Installed on 2017-10-23 (11 days ago)
InstallationMedia: Kubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64 (20170801)
IpRoute:
 default via 192.168.1.1 dev enp5s0  proto static  metric 100 
 169.254.0.0/16 dev enp5s0  scope link  metric 1000 
 192.168.1.0/24 dev enp5s0  proto kernel  scope link  src 192.168.1.117  metric 
100
IwConfig:
 lo        no wireless extensions.
 
 enp5s0    no wireless extensions.
Locales: extensions.sqlite corrupt or missing
MostRecentCrashID: bp-e9b04fab-94a4-41d4-a32c-b6f0a1171023
Plugins: Shockwave Flash - /usr/lib/flashplugin-installer/libflashplayer.so
PrefSources: prefs.js
ProcEnviron:
 PATH=(custom, user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
Profiles: Profile0 (Default) - LastVersion=56.0/20171003101344 (In use)
RfKill:
 5: hci0: Bluetooth
        Soft blocked: no
        Hard blocked: no
RunningIncompatibleAddons: False
SourcePackage: firefox
Themes: extensions.sqlite corrupt or missing
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/30/2011
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A13
dmi.board.name: 09KPNV
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 7
dmi.chassis.vendor: Dell Inc.
dmi.modalias: 
dmi:bvnDellInc.:bvrA13:bd10/30/2011:svnDellInc.:pnPrecisionWorkStationT3500:pvr:rvnDellInc.:rn09KPNV:rvrA00:cvnDellInc.:ct7:cvr:
dmi.product.name: Precision WorkStation T3500
dmi.sys.vendor: Dell Inc.

** Affects: firefox (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug xenial

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https://bugs.launchpad.net/bugs/1730004

Title:
  Sound system(alsa) fails on resume from suspend

Status in firefox package in Ubuntu:
  New

Bug description:
  Desktop system audio failure upon resume from suspend.  Event occurs
  approx. 50% of time and can be remedied with sudo alsa reload.
  Firefox is program where problem is first noted but no sound from any
  source is working.  Using GUI for sound setting will not correct
  problem.

  KDE Plasma 5.5.5
  Kernel 4.10.0-38-generic
  alsa-utils:
    Installed: 1.1.0-0ubuntu5
    Candidate: 1.1.0-0ubuntu5
    Version table:
   *** 1.1.0-0ubuntu5 500
          500 http://us.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
          100 /var/lib/dpkg/status

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: firefox 56.0+build6-0ubuntu0.16.04.2
  ProcVersionSignature: Ubuntu 4.10.0-38.42~16.04.1-generic 4.10.17
  Uname: Linux 4.10.0-38-generic x86_64
  NonfreeKernelModules: nvidia_uvm nvidia
  AddonCompatCheckDisabled: False
  ApportVersion: 2.20.1-0ubuntu2.10
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  rob        1489 F.... pulseaudio
   /dev/snd/controlC0:  rob        1489 F.... pulseaudio
  BuildID: 20171003101344
  Channel: Unavailable
  CurrentDesktop: KDE
  Date: Fri Nov  3 15:50:31 2017
  EcryptfsInUse: Yes
  ExecutablePath: /usr/lib/firefox/firefox
  Extensions: extensions.sqlite corrupt or missing
  ForcedLayersAccel: False
  IfupdownConfig:
   # interfaces(5) file used by ifup(8) and ifdown(8)
   auto lo
   iface lo inet loopback
  IncompatibleExtensions: Unavailable (corrupt or non-existant 
compatibility.ini or extensions.sqlite)
  InstallationDate: Installed on 2017-10-23 (11 days ago)
  InstallationMedia: Kubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64 
(20170801)
  IpRoute:
   default via 192.168.1.1 dev enp5s0  proto static  metric 100 
   169.254.0.0/16 dev enp5s0  scope link  metric 1000 
   192.168.1.0/24 dev enp5s0  proto kernel  scope link  src 192.168.1.117  
metric 100
  IwConfig:
   lo        no wireless extensions.
   
   enp5s0    no wireless extensions.
  Locales: extensions.sqlite corrupt or missing
  MostRecentCrashID: bp-e9b04fab-94a4-41d4-a32c-b6f0a1171023
  Plugins: Shockwave Flash - /usr/lib/flashplugin-installer/libflashplayer.so
  PrefSources: prefs.js
  ProcEnviron:
   PATH=(custom, user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  Profiles: Profile0 (Default) - LastVersion=56.0/20171003101344 (In use)
  RfKill:
   5: hci0: Bluetooth
        Soft blocked: no
        Hard blocked: no
  RunningIncompatibleAddons: False
  SourcePackage: firefox
  Themes: extensions.sqlite corrupt or missing
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 10/30/2011
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A13
  dmi.board.name: 09KPNV
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 7
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvrA13:bd10/30/2011:svnDellInc.:pnPrecisionWorkStationT3500:pvr:rvnDellInc.:rn09KPNV:rvrA00:cvnDellInc.:ct7:cvr:
  dmi.product.name: Precision WorkStation T3500
  dmi.sys.vendor: Dell Inc.

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