This bug is awaiting verification that the linux-oem-5.14/5.14.0-1011.11
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/1954612

Title:
  alsa/hda: the microphone can't be detected on a couple of lenovo
  machines

Status in HWE Next:
  New
Status in linux-oem-5.14 package in Ubuntu:
  Invalid
Status in linux-oem-5.14 source package in Focal:
  Fix Committed

Bug description:
  [Impact]
  We plug a microphone in the audio jack, but the driver can't
  detect the microphone and we try to record sound via this mic,
  can't record any sound.

  [Fix]
  Backport one patch from upstream.

  [Test]
  Booting the patched kernel, open the gnome-sound-setting, plug a microphone,
  we could see the system detect the microphone, and use this mic to record
  sound, the sound is recorded successfully.

  [Where problems could occur]
  The change only applies to the specific machines with those SSIDs, it will
  not introduce regression on other machines.

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