[kdemultimedia] [Bug 426977] New: After power up the HDMI audio device disappears

[Scott]

https://bugs.kde.org/show_bug.cgi?id=426977

            Bug ID: 426977
           Summary: After power up the HDMI audio device disappears
           Product: kdemultimedia
           Version: unspecified
          Platform: Kubuntu Packages
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: kde-multimedia at kde.org
          Reporter: shagooserver at gmail.com
  Target Milestone: ---

SUMMARY
After powering up the PC a few minutes later my HDMI audio device turns off. It
is displayed in system settings>audio>advanced tab with the profile set to off
in the dropdown menu with no "on" selection displayed. Needless to say no sound
output is produced. Restarting the computer always returns the audio device for
a few minutes and if a movie is played sound is produced for the length of the
movie before the device disappears again.


Syslog produces:
pulseaudio[2564]: GetManagedObjects() failed:
org.freedesktop.DBus.Error.NoReply: Did not receive a reply. Possible causes
include: the remote application did not send a reply, the message bus security
policy blocked the reply, the reply timeout expired, or the network connection
was broken.

or a similar message that includes, GetManagedObjects() failed

There is no output to kernel log

STEPS TO REPRODUCE
1. Power on or restart the PC
2. 
3. 

OBSERVED RESULT
With no action the audio device just stops being detected.

EXPECTED RESULT
The audio device is always present and available to play sound

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 5.18.5
KDE Frameworks Version: 5.68.0
Qt Version: 5.12.8

ADDITIONAL INFORMATION

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