Public bug reported:
When I plug in an external screen to my laptop, using the mini Display
Port, some windows open on the external screen by default while others
open on the main laptop screen. For example, Thunderbird will open on
the laptop screen while the System Settings will open on the external
screen. This can get even more weird with dialogue boxes: for example,
when reporting this bug, the first apport dialogue box opened on the
external screen, while the second one opened on the laptop's screen and
the third opened on the external screen again!
Steps to reproduce:
1. Login to the laptop with no external screens attached.
2. Connect an external screen using the mini display port.
3. Open System Settings: the window opens on the external screen.
4. Open an application like Thunderbird: the window opens on the laptop's
screen.
Expected behaviour:
Behaviour should be consistent and all windows should open on the same screen
unless explicitly moved to another screen by the user. In particular, when
using a laptop, the laptop's built in screen should be the preferred display.
Another rule to consider would be to always prefer the display that was
connected when the user session was started in cases when a new display was
connected during a user session.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: unity 5.10.0-0ubuntu6
ProcVersionSignature: Ubuntu 3.2.0-24.37-generic 3.2.14
Uname: Linux 3.2.0-24-generic x86_64
ApportVersion: 2.0.1-0ubuntu7
Architecture: amd64
CompizPlugins:
[core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell]
Date: Thu May 10 21:43:36 2012
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20110901)
ProcEnviron:
LANGUAGE=en_GB:en
TERM=xterm
PATH=(custom, no user)
LANG=en_GB.UTF-8
SHELL=/bin/bash
SourcePackage: unity
UpgradeStatus: Upgraded to precise on 2012-02-11 (89 days ago)
** Affects: unity (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug precise
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https://bugs.launchpad.net/bugs/997795
Title:
When plugging in an external screen, windows start opening on the
external rather than the built in screen
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