This bug is awaiting verification that the 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-
saucy' to 'verification-done-saucy'.

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-saucy

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https://bugs.launchpad.net/bugs/1239392

Title:
  Lenovo IdeaPad Yoga 13: Inverted Internal microphone (phase inversion)

Status in “alsa-driver” package in Ubuntu:
  Fix Committed

Bug description:
  As per this meta-bug:
  https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1002978

  Reporting for Lenovo IdeaPad Yoga 13. Inverted channel is visible when
  recording stereo in audacity. Mono recording via pulseaudio gives
  silence with occasional cracks somewhat corresponding to the sound
  level around. Skype and pavucontrol level gauges are also affected.

  Changes in balance in pavucontrol do not help with mono recording, I
  don't know why.

  I'm attaching two patches against oem-audio-hda-daily-
  dkms-0.201310111402~ubuntu13.10.1 (https://launchpad.net/~ubuntu-
  audio-dev/+archive/alsa-daily); either of them fixes the problem for
  me (the -alt one may affect other hardware, though). No additional
  steps were needed after applying a patch, building and installing the
  package.

  Output of alsa-info.sh is also attached.

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