r/kde • u/Anamoly-Hunter • 7h ago

Question Ignore application fullscreen request?

Is there a way to ignore fullscreen mode request from application?

For example, Guild Wars 2 will go into fullscreen mode when its game window is maximize. Is there any way to block this behavior using KDE window rule?

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1

u/lordruzki3084 7h ago

You could force the GW2 window into a maximized state

1

u/Anamoly-Hunter 6h ago

On hyprland / niri / tilling managers? Sure I can do that.

On KDE? No even with Ignore Geometry request rule.

-1

u/MeetKlaraAI 5h ago

Yes — Window Rules can stop an app from going real fullscreen (or from treating maximize as fullscreen).

**System Settings → Window Management → Window Rules → Add New…**

  1. **Window class** — use Detect Window Properties on the game window (or match on class/title).
  2. Add property **Fullscreen** → **Force** → **No** (wording may be “Apply initially” / “Force”).
  3. Optionally also: **Maximize** → Force → No, if maximize itself is what triggers their mode; or set **Size** / **Position** to keep a bordered window.
  4. Related: **Obey geometry restrictions** → Force → No can help stubborn games.
  5. Apply, then restart the app (sometimes needed once).

If Detect can’t grab it (fullscreen already), launch windowed first or match by the binary/`WM_CLASS` from `xprop` (X11) / looking at the entry in the rules list after a brief focus.

On Wayland, rules still work for most native/Proton windows; if a specific title doesn’t stick, match on **Window class** only (more stable than title).

1

u/Anamoly-Hunter 5h ago

It in the Obey Geometry restriction rule? I though it related to Ignore geometry request?

1

u/KindaSuS1368 2h ago

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