[Expired for linux (Ubuntu) because there has been no activity for 60
days.]

** Changed in: linux (Ubuntu)
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1878059

Title:
  ALC892 audio device not reachable after wake up

Status in linux package in Ubuntu:
  Expired

Bug description:
  Ubuntu 20.04, Gnome shell
  On older Ubuntu releases (<= 19.10), all is working fine.

  After waking up from suspend mode when I play music or a video, the
  system changed playing sound at my monitor speakers, detected as „card
  2: NVidia [HDA NVidia], device 7: HDMI 1 [HDMI 1]“.

  Here is the full list:
  $ LANG=C aplay -l
  **** List of PLAYBACK Hardware Devices ****
  card 0: PCH [HDA Intel PCH], device 0: ALC892 Analog [ALC892 Analog]
    Subdevices: 1/1
    Subdevice #0: subdevice #0
  card 0: PCH [HDA Intel PCH], device 1: ALC892 Digital [ALC892 Digital]
    Subdevices: 1/1
    Subdevice #0: subdevice #0
  card 2: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0]
    Subdevices: 1/1
    Subdevice #0: subdevice #0
  card 2: NVidia [HDA NVidia], device 7: HDMI 1 [HDMI 1]
    Subdevices: 1/1
    Subdevice #0: subdevice #0
  card 2: NVidia [HDA NVidia], device 8: HDMI 2 [HDMI 2]
    Subdevices: 1/1
    Subdevice #0: subdevice #0
  card 2: NVidia [HDA NVidia], device 9: HDMI 3 [HDMI 3]
    Subdevices: 1/1
    Subdevice #0: subdevice #0

  I can only choose the HDMI device in gnome-control-center or pavucontrol. The 
other devices are gone, why what ever.
  When I restart the pulseaudio process, all devices will come back:
  $ sudo killall -9 pulseaudio # (many times, because pa restarts itself)
  $ /usr/bin/pulseaudio --daemonize=no --log-target=journal
  ^Z
  [1]+  Angehalten              /usr/bin/pulseaudio --daemonize=no 
--log-target=journal
  $ bg 1

  This behavior is new in 20.04.

  Before I establish the behavior of pulseaudio, I logged off and on
  again and all devices are shown.

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