** Also affects: linux (Ubuntu Cosmic)
   Importance: Undecided
       Status: New

** Changed in: linux (Ubuntu Cosmic)
   Importance: Undecided => Critical

** Changed in: linux (Ubuntu Cosmic)
       Status: New => Fix Committed

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https://bugs.launchpad.net/bugs/1808465

Title:
  The mute led can't work anymore on the lenovo x1 carbon

Status in linux package in Ubuntu:
  Confirmed
Status in linux source package in Cosmic:
  Fix Committed

Bug description:

  [Impact]
  The mute led can't work on several lenovo laptop models after applying the
  patch of #1805079, this is a regression introduced by that patch.

  [Fix]
  chanin the ALC269_FIXUP_THINKPAD_ACPI, this will make the led work again.

  
  [Test Case]
  press F1 and F4, the mute led and micmute led work well.

  
  [Regression Potential]
  Very low, this patch is specific to ALC285_FIXUP_LENOVO_HEADPHONE_NOISE, and
  this FIXUP is specific several lenovo laptop models. I have tested audio and
  led functions on those machines.

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