[Bug 1847570] Re: PulseAudio automatically switches to HDMI sound output on login

[Daniel van Vugt]

The fix for 19.10 is queued and on the way:
https://launchpad.net/ubuntu/eoan/+queue?queue_state=1

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https://bugs.launchpad.net/bugs/1847570

Title:
  PulseAudio automatically switches to HDMI sound output on login

Status in PulseAudio:
  New
Status in pulseaudio package in Ubuntu:
  Fix Released
Status in pulseaudio source package in Eoan:
  Triaged
Status in pulseaudio source package in Focal:
  Fix Released

Bug description:
  [Impact]

  On my freshly installed eoan system I have two output devices:
  - HDMI/DisplayPort 2 - GK208 ...
  - Line Out - Family 17h ...

  When I login into the system pulseaudio always select the "wrong"
  one (HDMI) and I need to go to gnome-settings/Sound/Output Device
  and switch to "line out". This applies to every login/logout not
  just reboots.

  [Test Case]

  0. Plug in a monitor that supports HDMI audio (one that appears in
  your Settings>Sound)

  1. Log out and in again.

  Verify the default audio device in Settings is still speakers or
  headphones. Not the monitor's HDMI audio device.

  [Regression Potential]

  Low. The fix proposed just reverts to the same code used in PulseAudio
  12 and earlier. It has also been released and verified on focal
  already.

  [Workaround]

  Comment out:

  load-module module-switch-on-port-available
  load-module module-switch-on-connect

  from /etc/pulse/default.pa

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