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[Vanyolai Krisztián <vanyolai@xxxxxxxxx>]

I've got 2 sound devices on my system: 
1. HDMI/DisplayPort2 
2. HDMI/DisplayPort

As I resume from suspend, the right panel of the system/sound becomes:
settings for: Analog headphones (however on the left panel there's no
such device)

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

** Tags added: kernel-bug-exists-upstream

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https://bugs.launchpad.net/bugs/1574382

Title:
  Default sound device changes after resuming system

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Ubuntu 16.04 and 15.10, too
  After resuming from sleep, the default sound device is set to another one, I have to go in the sound settings and click on the primary one to get back. Did not see this bug after rebooting or power on.
  --- 
  ApportVersion: 2.20.1-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  vanyo      2021 F.... pulseaudio
   /dev/snd/controlC0:  vanyo      2021 F.... pulseaudio
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 16.04
  HibernationDevice: RESUME=UUID=09b833a2-0d71-4754-acb3-f94c71921de4
  InstallationDate: Installed on 2016-02-26 (59 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-21-generic root=UUID=155d6a5c-c997-4711-a3d2-bd61d31d2cff ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-21-generic N/A
   linux-backports-modules-4.4.0-21-generic  N/A
   linux-firmware                            1.157
  Tags:  xenial
  Uname: Linux 4.4.0-21-generic x86_64
  UpgradeStatus: Upgraded to xenial on 2016-04-22 (4 days ago)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 08/12/2015
  dmi.bios.vendor: Intel Corporation
  dmi.bios.version: RYBDWi35.86A.0350.2015.0812.1722
  dmi.board.name: NUC5i7RYB
  dmi.board.vendor: Intel Corporation
  dmi.board.version: H73774-102
  dmi.chassis.type: 3
  dmi.modalias: dmi:bvnIntelCorporation:bvrRYBDWi35.86A.0350.2015.0812.1722:bd08/12/2015:svn:pn:pvr:rvnIntelCorporation:rnNUC5i7RYB:rvrH73774-102:cvn:ct3:cvr:

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