[Bug 1569357] Re: Ubuntu 16.04 - Unity desktop session broken when using non-LightDM as X Display Manager

[林博仁]

UPDATE: also reproducible on LXDM.  I've mark all possibly relevant
packages.

** Summary changed:

- Ubuntu 16.04 - Unity DE broken when using non-LightDM as X Display Manager
+ Ubuntu 16.04 - Unity desktop session broken when using non-LightDM as X Display Manager

** Description changed:

  As title, you'll only see your desktop file icons, no launcher and
  status bar are displayed.
  
- You can only reproduce this issue if you choose to use SDDM as the default X display manager(e.g. LightDM has no this issue)
+ You can only reproduce this issue if you choose to use SDDM as the default X display manager(e.g. LightDM has no this issue)  
  UPDATE: Not only SDDM!  Currently most non-LightDM I tested has the same issue.
+ 
+ * SDDM: reproduced
+ * GDM3: not even launch-able on my system so can't verify
+ * LXDM: reproduced
  
  This issue doesn't exist in Ubuntu 15.10, only in 16.04
  
  ## Workaround ##
  * Switch to LightDM
  
  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: sddm 0.13.0-1ubuntu5
  Uname: Linux 4.5.0-buo-ren-vanilla-intel-ivybridge-optimized x86_64
  ApportVersion: 2.20.1-0ubuntu1
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Tue Apr 12 20:17:23 2016
  InstallationDate: Installed on 2016-01-07 (95 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  SourcePackage: sddm
  UpgradeStatus: Upgraded to xenial on 2016-04-07 (4 days ago)

** Also affects: lxdm (Ubuntu)
   Importance: Undecided
       Status: New

** Also affects: lightdm (Ubuntu)
   Importance: Undecided
       Status: New

** Also affects: gnome-session (Ubuntu)
   Importance: Undecided
       Status: New

** Also affects: unity (Ubuntu)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1569357

Title:
  Ubuntu 16.04 - Unity desktop session broken when using non-LightDM as
  X Display Manager

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