Bug 434970

Summary:	Windows are re arranged to primary monitor after unlock
Product:	[Plasma] kwin	Reporter:	Marco Ambu <marco.ambu>
Component:	multi-screen	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED DUPLICATE
Severity:	normal	CC:	bhush94, nate
Priority:	NOR
Version:	5.20.5
Target Milestone:	---
Platform:	Debian testing
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description Marco Ambu 2021-03-26 13:21:43 UTC

SUMMARY
When using multiple monitors, after unlocking after the energy saving timeout all the open windows are moved to the primary monitor even if they were in the secondary before the lock.

STEPS TO REPRODUCE
1. wait for the monitors to go off
2. press a key to show the unlock screen and type password

OBSERVED RESULT
When the session is back all the windows re-arranged in the primary monitor.
Also, applications in full screen in both monitors cannot see the second monitor again.

EXPECTED RESULT
When the session is back all the windows are where they were before locking (including the secondary monitor).

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: Debian bullseye 5.10.0-5-amd64
(available in About System)
KDE Plasma Version: 5.20.5
KDE Frameworks Version: 5.78.0
Qt Version: 5.12.2

ADDITIONAL INFORMATION
This does not happen if I use Win+L to lock and then unlock before the monitor power saving timeout kicks in.

Comment 1 Nate Graham 2021-03-31 15:49:34 UTC

If your primary monitor by any chance not the left-most one?

Comment 2 Marco Ambu 2021-03-31 15:55:47 UTC

You are right: I have 2 monitors: my primary is on the right and the secondary is on the left.
That because I have an all-in-one so I cannot really change the primary I believe.

Comment 3 Nate Graham 2021-03-31 16:02:00 UTC

Yup, I thought so. It's an annoying known issue.

*** This bug has been marked as a duplicate of bug 427875 ***

Comment 4 Nate Graham 2021-08-19 19:36:44 UTC


*** This bug has been marked as a duplicate of bug 378896 ***