This bug is awaiting verification that the linux-oem-5.13/5.13.0-1017.21
kernel in -proposed solves the problem. Please test the kernel and
update this bug with the results. If the problem is solved, change the
tag 'verification-needed-focal' to 'verification-done-focal'. If the
problem still exists, change the tag 'verification-needed-focal' to
'verification-failed-focal'.

If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!


** Tags added: verification-needed-focal

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https://bugs.launchpad.net/bugs/1946383

Title:
  Fix missing recording from headset mic

Status in HWE Next:
  New
Status in linux-oem-5.13 package in Ubuntu:
  Invalid
Status in linux-oem-5.14 package in Ubuntu:
  Invalid
Status in linux-oem-5.13 source package in Focal:
  Confirmed
Status in linux-oem-5.14 source package in Focal:
  Confirmed

Bug description:
  [Impact] 
  When using headset mic to record, the beginning of 2 seconds period is
  not recorded.

  [Fix]
  Skip shutup routines for the codec. The shutup routines somehow
  interferes headset mic recording.

  [Test]
  External headset mic no longer records blank period once the patch is
  applied.

  [Where problems could occur]
  Shutup routines are mainly for outputs like headphone and speakers.
  Since the patch is using a rather generic match for both ALC236 and
  ALC256, many systems might start to observe pop sound from the audio
  outputs.

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