[Bug 1535436] Re: Display settings got lost in the upgrade from 15.04 to 15.10

[Ubuntu Foundations Team Bug Bot]

** Tags added: vivid2wily

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https://bugs.launchpad.net/bugs/1535436

Title:
  Display settings got lost in the upgrade from 15.04 to 15.10

Status in ubuntu-release-upgrader package in Ubuntu:
  New

Bug description:
  On my laptop I had my display set up this way, had been so for a very long time:
  - whenever I connected an external monitor, the built-in monitor would turn off and the external one would be the only enabled monitor
  - obviously when I disconnected the monitor, the built-in one would turn on again

  I think the way I had set this up in the first place was by going to
  Settings->Display with the external monitor connected, turning off the
  built-in one and leaving only the external one turned on. I don't seem
  to remember I had to do anything special to have it switch
  automatically. Which is as it should obviously be: if the built-in
  monitor is turned off, it must automatically turn on when it becomes
  the only available one (unless there was a setting whether or not to
  do so, which doesn't exist).

  Whatever the way I had set this up in the first place, the issue is
  that after upgrading from 15.04 to 15.10 THE SETTING GOT LOST, and
  both monitors were enabled in a dual-screen mode, an extended desktop
  or whatever it is called (where both screens are turned on and they
  are not cloned).

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: ubuntu-release-upgrader-core 1:15.10.14.2
  ProcVersionSignature: Ubuntu 4.2.0-23.28-generic 4.2.6
  Uname: Linux 4.2.0-23-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: Unity
  Date: Mon Jan 18 21:33:32 2016
  InstallationDate: Installed on 2013-10-11 (829 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  Symptom: dist-upgrade
  UpgradeStatus: Upgraded to wily on 2016-01-18 (0 days ago)
  VarLogDistupgradeTermlog:

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