[Bug 1883670] Re: Disable IEC958 on HP Thunderbolt Dock

[Launchpad Bug Tracker]

This bug was fixed in the package alsa-lib - 1.2.2-2.3ubuntu1

---------------
alsa-lib (1.2.2-2.3ubuntu1) groovy; urgency=medium

  * debian/patches/0001-conf-USB-Audio-Add-HP-Thunderbolt-Dock-in-the-IEC958.patch:
    - Disable IEC958 on HP Thunderbolt Dock (lp: #1883670)

 -- Kai-Heng Feng <kai.heng.feng at canonical.com>  Tue, 16 Jun 2020
17:44:37 +0800

** Changed in: alsa-lib (Ubuntu Groovy)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1883670

Title:
  Disable IEC958 on HP Thunderbolt Dock

Status in HWE Next:
  New
Status in OEM Priority Project:
  Confirmed
Status in alsa-lib package in Ubuntu:
  Fix Released
Status in alsa-lib source package in Focal:
  Fix Committed
Status in alsa-lib source package in Groovy:
  Fix Released

Bug description:
  [Impact]
  On HP Thunderbolt Dock, unusable SPDIF can be selected as output from PulseAudio.

  [Fix]
  Disable IEC958 (SPDIF) through ALSA UCM.

  [Test]
  With the UCM applied, `pactl` and audio panel in gnome-control-center no longer have SPDIF option.

  [Regression Potential]
  Low. This fix limits to the HP Thunderbolt Dock, other devices are unaffected.

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