https://bugs.kde.org/show_bug.cgi?id=433789
Bug ID: 433789
Summary: Windows maximized on a second monitor are moved to the
primary monitor when the monitor goes off
Product: kwin
Version: 5.21.0
Platform: openSUSE RPMs
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: core
Assignee: kwin-bugs-n...@kde.org
Reporter: mig...@rozsas.eng.br
Target Milestone: ---
SUMMARY
In a dual monitor setup, the windows maximized on the second monitor are moved
to the primary monitor when the second monitor goes off and goes on again.
The windows that are not maximized on the second monitor or any windows in the
first monitor are not affected. They remain where it are supposed to be.
In general, the monitors goes off as result of the automatic lock screen
followed by a long period (15min) of inactivity, but it happens manually. I
mean, turn the second monitor off by the monitor switch and turn it on again
after a short period (seconds).
STEPS TO REPRODUCE
1. In a dual monitor setup, place windows on the first and second monitor. Then
maximize some windows, specially on the second monitor.
2. Turn the second monitor off by pressing its power off switch.
3. Wait a few seconds. Turn the second monitor on again. You see the maximized
windows placed on the second monitor to show up on the first monitor.
OBSERVED RESULT
The maximized windows placed on the second monitor are showed now on the first
monitor.
The maximized windows on the first monitor are not affected.
Any non maximized window in any monitor are not affected.
EXPECTED RESULT
Any windows must stay in its the original place.
SOFTWARE/OS VERSIONS
Operating System: openSUSE Tumbleweed 20210220
KDE Plasma Version: 5.21.0
KDE Frameworks Version: 5.79.0
Qt Version: 5.15.2
Kernel Version: 5.10.16-1-default
OS Type: 64-bit
Graphics Platform: X11
Processors: 8 × Intel® Core™ i7-3770 CPU @ 3.40GHz
Memory: 14.6 GiB of RAM
Graphics Processor: GeForce GTX 970/PCIe/SSE2
ADDITIONAL INFORMATION
This bug happens since KDE 5.20 at least. Its not new on KDE 5.21.
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