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In KDE Plasma 5.19, I would like to achieve a window behavior which all new windows open on the same monitor that my cursor is on...

I have this desired behavior working at my job, in an earlier version of Plasma. I did the following for that to work:

Via the "Window Behavior" screen:

1 - Check "Active screen follows mouse" and "Separate screen focus"

2 - On "Windows rules", create a new rule that will apply for every window

3 - Add a property to the rule using "Initial position" and set it to "Force", "on main Window"

I did this exact same config on my home PC with Plasma 5.19, but it's just not working...

Thales Lima
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1 Answers1

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In short: if you are using x11 session, make sure your app does not break placement behavior. And when it does, create rule to ignore requested geometry.

Some applications have their own thinking of where they want to be placed. This is crazy, but chromium (also vivaldi) window appears always in left monitor for me. When I created a window rule with initial placement - force - centered, it had no effect. [At the same time, other apps are placed at correct monitor].

But when I created a rule to ignore requested geometry - apply initially, its window magically was placed correctly (on that screen from which I launched it from start menu).

This part of documentation explains that kde default placement settings are ignored when the app has its own thinking:

Ignore requested geometry
Toggle whether to accept or ignore the window’s requested geometry position. To avoid conflicts between the default placement strategy and the window’s request, the placement strategy is ignored when the window’s request is accepted.

Versions:
KDE Plasma: 5.23.3
Chromium: 96.0.4664.45
Vivaldi: 4.3.2439.65

Ashark
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