Public bug reported:
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:
** Affects: ubuntu-release-upgrader (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug dist-upgrade wily
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https://bugs.launchpad.net/bugs/1535436
Title:
Display settings got lost in the upgrade from 15.04 to 15.10
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