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-
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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Packages, which is subscribed to linux-oem-5.6 in Ubuntu.
https://bugs.launchpad.net/bugs/1890441

Title:
  Fix missing HDMI/DP Audio on an HP Desktop

Status in HWE Next:
  New
Status in linux package in Ubuntu:
  Confirmed
Status in linux-oem-5.6 package in Ubuntu:
  Invalid
Status in linux source package in Focal:
  Fix Committed
Status in linux-oem-5.6 source package in Focal:
  Confirmed

Bug description:
  [Impact]
  There's an HP desktop doesn't claim to support HDMI audio.
    
  [Fix] 
  Use a quirk list to force HDMI audio connection to ignore Connectivity
  Bit, which is incorrectly set by BIOS.

  [Test]
  With the patch applied, we can find HDMI codec under /proc/asound/card0
  and audio playback through HDMI works. 

  [Regression Potential] 
  This fix doesn't bring any functional change other than the targeted
  platform. The platform in question is not on the market yet so the
  risk of regression is minimal.

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