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[Hui Wang <hui.wang@xxxxxxxxxxxxx>]

The fix has been merged by upstream.

commit f475371aa65de84fa483a998ab7594531026b9d9
Author: Hui Wang <hui.wang@xxxxxxxxxxxxx>
Date:   Tue Aug 19 12:07:03 2014 +0800

    ALSA: hda - restore the gpio led after resume
    
    On some HP laptops, the mute led is controlled by codec gpio.
    
    When some machine resume from s3/s4, the codec gpio data will be
    cleared to 0 by BIOS:
    Before suspend:
      IO[3]: enable=1, dir=1, wake=0, sticky=0, data=1, unsol=0
    After resume:
      IO[3]: enable=1, dir=1, wake=0, sticky=0, data=0, unsol=0
    
    To skip the AFG node to enter D3 can't fix this problem.
    
    A workaround is to restore the gpio data when the system resume
    back from s3/s4. It is safe even on the machines without this
    problem.
    
    BugLink: https://bugs.launchpad.net/bugs/1358116
    Tested-by: Franz Hsieh <franz.hsieh@xxxxxxxxxxxxx>
    Cc: stable@xxxxxxxxxxxxxxx
    Signed-off-by: Hui Wang <hui.wang@xxxxxxxxxxxxx>
    Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>


** Changed in: linux (Ubuntu)
       Status: In Progress => Fix Released

** Changed in: hwe-next
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/1358116

Title:
  The mute led status can't be kept after s3/s4

Status in HWE Next Project:
  Fix Released
Status in “linux” package in Ubuntu:
  Fix Released

Bug description:
  Steps to Reproduce:
  1.Unbundle Ubuntu 14WWLTAL6ak on Some HP laptops
  2. Turn off the sound via Mute button, the Mute LED is turned to Amber.
  3. Put UUT S3 or S4 and resume => the Mute LED will turn to White.

  Customer Impact:
  Mute LED show wrong indicate after S3/S4/Resume.

  This bug is for tracking purposes, please do not triage.

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