Hi Raymond,
I am not sure what is needed to make the bug report complete. Can you please 
point outit?

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https://bugs.launchpad.net/bugs/1533343

Title:
  No sound from internal speakers after boot with connected headphones

Status in alsa-driver package in Ubuntu:
  Incomplete

Bug description:
  On Lenovo L450 laptop, when I boot the PC with headphones attached,
  then the sound via headphones will work, but there will be no sound
  from internal speakers when headphones are detached.

  I tested this couple of times and the problem is always reproduced.
  This is the procedure A:

  1. When the problem is not present, sound is present in laptop's speakers, 
connect the headphones
  2. initiate reboot
  3. once booted, initiate playing of some audio and check the sound from 
headphones - it will work OK
  4. disconnect the headphones - there is no sound from internal speakers

  Procedure B:
  1. turn off the laptop (power off)
  2. connect the headphones to the laptop
  3. power on the laptop and boot into Ubuntu 15.10
  4. once booted, initiate playing of some audio and check the sound from 
headphones - it will work OK
  5. disconnect the headphones - there is no sound from internal speakers

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: alsa-base 1.0.25+dfsg-0ubuntu5
  ProcVersionSignature: Ubuntu 4.2.0-23.28-generic 4.2.6
  Uname: Linux 4.2.0-23-generic x86_64
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  ygzo       2125 F.... pulseaudio
   /dev/snd/controlC0:  ygzo       2125 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Tue Jan 12 20:44:49 2016
  InstallationDate: Installed on 2015-10-05 (99 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
  PackageArchitecture: all
  SourcePackage: alsa-driver
  Symptom: audio
  Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH failed
  Symptom_Card: Built-in Audio - HDA Intel PCH
  Symptom_Jack: Speaker, Internal
  Symptom_Type: Only some of outputs are working
  Title: [20DT0003XS, Realtek ALC3232, Speaker, Internal] Playback problem
  UpgradeStatus: Upgraded to wily on 2015-11-03 (70 days ago)
  dmi.bios.date: 08/19/2015
  dmi.bios.vendor: LENOVO
  dmi.bios.version: JDET54WW (1.16 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: Intel powered classmate PC
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0E50510 WIN
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: None
  dmi.modalias: 
dmi:bvnLENOVO:bvrJDET54WW(1.16):bd08/19/2015:svnLENOVO:pn20DT0003XS:pvrThinkPadL450:rvnLENOVO:rnIntelpoweredclassmatePC:rvrSDK0E50510WIN:cvnLENOVO:ct10:cvrNone:
  dmi.product.name: 20DT0003XS
  dmi.product.version: ThinkPad L450
  dmi.sys.vendor: LENOVO

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