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-
bionic' to 'verification-done-bionic'. If the problem still exists,
change the tag 'verification-needed-bionic' to 'verification-failed-
bionic'.

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-bionic

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https://bugs.launchpad.net/bugs/1836916

Title:
  alsa/hdmi: add icelake hdmi audio support for a Dell machine

Status in HWE Next:
  New
Status in linux package in Ubuntu:
  Fix Released
Status in linux-oem-osp1 package in Ubuntu:
  Fix Released
Status in linux source package in Bionic:
  Won't Fix
Status in linux-oem-osp1 source package in Bionic:
  Fix Released
Status in linux source package in Disco:
  Fix Committed
Status in linux-oem-osp1 source package in Disco:
  Fix Released

Bug description:
  [Impact]
  On a Dell icelake platform, the hdmi audio doesn't work at all, when users
  plug hdmi cable, they can't find hdmi audio from gnome-sound-setting.

  [Fix]
  add icl hdmi audio id and related support patch to alsa driver.

  [Test Case]
  after applying the patchset, we plug hdmi cable and the hdmi audio shows up
  in the sound-setting and works well, after unplugging the cable, the hdmi
  audio disappears as expected.

  [Regression Risk]
  Low. this patchset is specific to a icl hdmi audio codec.

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