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

[Launchpad Bug Tracker]

You have been subscribed to a public bug by Daniel van Vugt (vanvugt):

[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

** Affects: pulseaudio
     Importance: Unknown
         Status: New

** Affects: pulseaudio (Ubuntu)
     Importance: Medium
     Assignee: Daniel van Vugt (vanvugt)
         Status: Fix Released

** Affects: pulseaudio (Ubuntu Eoan)
     Importance: Medium
     Assignee: Daniel van Vugt (vanvugt)
         Status: Fix Committed

** Affects: pulseaudio (Ubuntu Focal)
     Importance: Medium
     Assignee: Daniel van Vugt (vanvugt)
         Status: Fix Released


** Tags: eoan focal regression-release
-- 
PulseAudio automatically switches to HDMI sound output on login
https://bugs.launchpad.net/bugs/1847570
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