*** This bug is a duplicate of bug 1860697 ***
    https://bugs.launchpad.net/bugs/1860697

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: alsa-driver (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1866890

Title:
  audio card not detected after upgrade to 20.04 (Only Dummy Output
  appears)

Status in alsa-driver package in Ubuntu:
  Confirmed

Bug description:
  Since upgrading to 20.04 the sound card is no longer detected.

  This means that I can only see "Dummy Output" in the sound settings.

  The audio works if I use Bluetooth headphones but not if I try to use
  the speakers or the 3.5mm headphone jack.

  My machine is a Lenovo ThinkPad X1 Yoga (4th gen).

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