[Bug 1882161] Re: module-switch-on-port-avaiable: switch the port on ucm devices based on the priority

[Łukasz Zemczak]

Hello Hui, or anyone else affected,

Accepted pulseaudio into focal-proposed. The package will build now and
be available at
https://launchpad.net/ubuntu/+source/pulseaudio/1:13.99.1-1ubuntu3.4 in
a few hours, and then in the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.  Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested, what testing has been
performed on the package and change the tag from verification-needed-
focal to verification-done-focal. If it does not fix the bug for you,
please add a comment stating that, and change the tag to verification-
failed-focal. In either case, without details of your testing we will
not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance for helping!

N.B. The updated package will be released to -updates after the bug(s)
fixed by this package have been verified and the package has been in
-proposed for a minimum of 7 days.

** Tags added: verification-needed verification-needed-focal

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https://bugs.launchpad.net/bugs/1882161

Title:
  module-switch-on-port-avaiable: switch the port on ucm devices based
  on the priority

Status in HWE Next:
  New
Status in OEM Priority Project:
  New
Status in pulseaudio package in Ubuntu:
  Fix Released
Status in pulseaudio source package in Focal:
  Fix Committed
Status in pulseaudio source package in Groovy:
  Fix Released

Bug description:
  [Impact]

   * On the Dell machines with multi function audio jack, the
     headphone/headset can't output sound automatically, which is different
     from ubuntu 18.04. The headphone/headset should be able to  output
     sound automatically after plugging in the audio jack.

  [Test Case]

   * On Tiger Lake platform
     Reproduce step:
     1. plug headphone/headset
     2. open g-c-c sound to check

     Expect result: The output device should switch to headphone or headset,
                    since headphone's priority is higher in ucm2 config.
     Actual result: The output device is still internal speaker.

  [Regression Potential]

   * The change insert the ucm device by its priority, the potential
     regression is low, since if the change is not working properly, the 
     side effect is that the order of ucm devices are wrong, and it won't 
     switch to the correct output device as expect, but user can still
     config it manually.

  [Other]

   * This bug originates from an OEM private bug #1875597, then ubuntu users
     reported 2 public bugs #1871329 and #1881659. The 2nd issue of #1871329
     and the 1st issue of #1881659 have the same root cause as #1875597

   * The root cause is the ucm2 conf defines 2 input devices: the Mic2 and
     Headset MIC, and the pulseaudio parse the input device Headset MIC
     first then Mic2, finally the audio jack is set to Mic2 mode, this make
     the audio jack can't output sound anymore. To fix it, let the audio
     jack set to Headset MIC mode by default (Headset MIC has higher
     priority than Mic2 in the ucm2 conf), to do so, let pulseaudio send the
     device event to module-switch-on-port-available by the order of
     priority in the umc2.

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