https://bugs.kde.org/show_bug.cgi?id=452247
Bug ID: 452247
Summary: Window is placed on wrong screen after monitors power
on
Product: kwin
Version: 5.24.3
Platform: openSUSE RPMs
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: multi-screen
Assignee: kwin-bugs-n...@kde.org
Reporter: r...@alum.mit.edu
Target Milestone: ---
SUMMARY
***
When I resume a session with two monitors after screens have been powered down
by power management, a window on the second monitor comes back on the first
monitor even with an explicit rule placing the window on the second monitor.
To correctly place the window, I need to make any change to the window rule (e.
g. change Initial placement from Force Temporarily to Do Not Affect or vice
versa -- that's the one I toggle, so I alternate which setting gets used), and
the window is then placed correctly on the second monitor.
This started some time within the past few months; I'm not sure exactly what
Plasma version is involved.
***
STEPS TO REPRODUCE
1. Place a window on the second monitor (I use a window rule forcing screen 1
with Apply initially -- it doesn't matter whether I use Apply initially, Force,
or any other setting). The window in question is a full-screen VNC viewer, but
I believe I've seen it with other windows.
2. Allow the power saving to turn on (I use screen energy saving at 120
minutes).
3. Move the mouse or press a key and wait for the screen to power on.
OBSERVED RESULT
VNC window in question is placed on the first screen of my 2-monitor setup; I
have to minimize it, since it's full screen. If I then make any change to the
window settings for the window in question and restore the window, it comes
back on the second monitor. The change must be to a rule affecting the window
in question; changing a different rule does not resolve the problem.
EXPECTED RESULT
Window should display on the display it was previously on.
SOFTWARE/OS VERSIONS
Windows:
macOS:
Linux/KDE Plasma: OpenSUSE 15.3
(available in About System)
KDE Plasma Version: 5.24.3
KDE Frameworks Version: 5.92.0
Qt Version: 5.15.2
Kernel Version 5.3.18-150300.59.54-preempt (64 bit)
Graphics Platform: X11
ADDITIONAL INFORMATION
Primary display (screen 0): Dell U2718Q, positioned at left, portrait mode
(3840x2160)
Secondary display (screen 1): Dell P2715Q, positioned at right, same
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