Bug 324441

Summary:	Open windows sometimes moved to the newly attached monitor
Product:	[Plasma] kwin	Reporter:	mludvig
Component:	general	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED DUPLICATE
Severity:	normal	CC:	dvratil
Priority:	NOR
Version First Reported In:	4.11.0
Target Milestone:	---
Platform:	unspecified
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description mludvig 2013-09-03 05:38:30 UTC

I've got my laptop display (LVDS1) as a "Primary output" and an external monitor (VGA1). 
Sometimes when I attach the external monitor my open windows are moved there. It's quite annoying - I'd much prefer for them to stay on my laptop screen and only move what I want to move to the external monitor.

Toggling the "Primary output" star-icon makes no difference.

FWIW the laptop is Lenovo T420s and it happens with a number of different external monitors I use. Package is kscreen-1.0.1-11.1 from OpenSUSE KDE 4.11 testing repository.

Comment 1 Daniel Vrátil 2013-09-03 08:52:59 UTC

Windows are managed by KWin, reassigning

Comment 2 Martin Flöser 2013-09-03 09:51:31 UTC

there is not really a bug here. Windows open on the currently active screen. That is the screen with the active application unless you use the option to have active screen follows mouse.

Comment 3 Thomas Lübking 2013-09-03 14:03:03 UTC

> Sometimes when I attach the external monitor my open windows are moved there.

I think what he observes is "bug" 296673

@mludvig
The windows are actually not moved, but your screen(s) move below them, ie. the global absolute position (eg. 200+100) is now on another screen.
This happens whenever screens are added to the top or the left.

*** This bug has been marked as a duplicate of bug 296673 ***