Public bug reported:

-plug hdmi cable in to my laptop and LCD tv
-replicate my laptop screen on tv
-from sound settings, select hdmi output
-watch a movie, everything is fine ;)
-plug hdmi cable out of laptop
-now play music/video on laptop but NO sound is heard
-in sound settings, builtin laptop speakers is selected, sound test "works"
-play music/video on laptop but no sound is heard, no change
-open music/video file with VLC player, select Audio > Audo Device, there i see 
builtin HDMI selected, i select builtin speakers
-sound works again on laptop

so after plugging out hdmi cable, even though i "only" see builtin
speakers in sounds settings, hdmi output selection persists, and I cant
fix it in sound settings. I have to go to VLC player

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 4.4.0-43.63-generic 4.4.21
Uname: Linux 4.4.0-43-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia_modeset nvidia
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  serhat     1733 F.... pulseaudio
 /dev/snd/controlC1:  serhat     1733 F.... pulseaudio
CurrentDesktop: Unity
Date: Sun Oct 16 01:00:32 2016
InstallationDate: Installed on 2016-04-25 (173 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH successful
Symptom_Card: Built-in Audio - HDA Intel PCH
Symptom_Jack: Speaker, Internal
Symptom_PulsePlaybackTest: PulseAudio playback test successful
Symptom_SpeakerTestPulseStderr: W r i t e   e r r o r :   - 3 2 , B r o k e n   
p i p e
Symptom_Type: None of the above
Title: [CASPER NIRVANA NOTEBOOK, Realtek ALC269VC, Speaker, Internal] Playback 
problem
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/18/2014
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: C15B.616
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: C15B
dmi.board.vendor: CASPER BILGISAYAR SISTEMLERI A.S
dmi.board.version: 1.0
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: CASPER BILGISAYAR SISTEMLERI A.S
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrC15B.616:bd03/18/2014:svnCASPERBILGISAYARSISTEMLERIA.S:pnCASPERNIRVANANOTEBOOK:pvr1.0:rvnCASPERBILGISAYARSISTEMLERIA.S:rnC15B:rvr1.0:cvnCASPERBILGISAYARSISTEMLERIA.S:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: CASPER NIRVANA NOTEBOOK
dmi.product.version: 1.0
dmi.sys.vendor: CASPER BILGISAYAR SISTEMLERI A.S

** Affects: alsa-driver (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug xenial

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https://bugs.launchpad.net/bugs/1633780

Title:
  hdmi cable off causes no sound output

Status in alsa-driver package in Ubuntu:
  New

Bug description:
  -plug hdmi cable in to my laptop and LCD tv
  -replicate my laptop screen on tv
  -from sound settings, select hdmi output
  -watch a movie, everything is fine ;)
  -plug hdmi cable out of laptop
  -now play music/video on laptop but NO sound is heard
  -in sound settings, builtin laptop speakers is selected, sound test "works"
  -play music/video on laptop but no sound is heard, no change
  -open music/video file with VLC player, select Audio > Audo Device, there i 
see builtin HDMI selected, i select builtin speakers
  -sound works again on laptop

  so after plugging out hdmi cable, even though i "only" see builtin
  speakers in sounds settings, hdmi output selection persists, and I
  cant fix it in sound settings. I have to go to VLC player

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: alsa-base 1.0.25+dfsg-0ubuntu5
  ProcVersionSignature: Ubuntu 4.4.0-43.63-generic 4.4.21
  Uname: Linux 4.4.0-43-generic x86_64
  NonfreeKernelModules: nvidia_uvm nvidia_modeset nvidia
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  serhat     1733 F.... pulseaudio
   /dev/snd/controlC1:  serhat     1733 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Sun Oct 16 01:00:32 2016
  InstallationDate: Installed on 2016-04-25 (173 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 
(20160420.1)
  PackageArchitecture: all
  SourcePackage: alsa-driver
  Symptom: audio
  Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH successful
  Symptom_Card: Built-in Audio - HDA Intel PCH
  Symptom_Jack: Speaker, Internal
  Symptom_PulsePlaybackTest: PulseAudio playback test successful
  Symptom_SpeakerTestPulseStderr: W r i t e   e r r o r :   - 3 2 , B r o k e n 
  p i p e
  Symptom_Type: None of the above
  Title: [CASPER NIRVANA NOTEBOOK, Realtek ALC269VC, Speaker, Internal] 
Playback problem
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/18/2014
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: C15B.616
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: C15B
  dmi.board.vendor: CASPER BILGISAYAR SISTEMLERI A.S
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: CASPER BILGISAYAR SISTEMLERI A.S
  dmi.chassis.version: To Be Filled By O.E.M.
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrC15B.616:bd03/18/2014:svnCASPERBILGISAYARSISTEMLERIA.S:pnCASPERNIRVANANOTEBOOK:pvr1.0:rvnCASPERBILGISAYARSISTEMLERIA.S:rnC15B:rvr1.0:cvnCASPERBILGISAYARSISTEMLERIA.S:ct3:cvrToBeFilledByO.E.M.:
  dmi.product.name: CASPER NIRVANA NOTEBOOK
  dmi.product.version: 1.0
  dmi.sys.vendor: CASPER BILGISAYAR SISTEMLERI A.S

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