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doc: list cases that trigger unredirect 

unredir-if-possible doesn't just happen for fullscreen windows, be more
accurate.

Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
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Yuxuan Shui 2023-01-17 02:56:28 +00:00
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man/picom.1.asciidoc
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@ -134,7 +134,13 @@ OPTIONS
Use EWMH '_NET_ACTIVE_WINDOW' to determine currently focused window, rather than listening to 'FocusIn'/'FocusOut' event. Might have more accuracy, provided that the WM supports it.
*--unredir-if-possible*::
Unredirect all windows if a full-screen opaque window is detected, to maximize performance for full-screen windows. Known to cause flickering when redirecting/unredirecting windows.
Unredirect all windows in some cases. Known to cause flickering when redirecting/unredirecting windows. Currently, unredirecting is triggered by following conditions:
* If the top level window is taking up the entire screen. In multi-monitor setup, this means ALL monitors.
* If there is no window.
* If a window is fullscreen according to its WM hints. (can be disabled with *--no-ewmh-fullscreen*).
* If a window requests to bypass the compositor ('_NET_WM_BYPASS_COMPOSITOR').
Windows are also unredirected unconditionally when monitors are powered off, regardless if *--unredir-if-possible* is set.
*--unredir-if-possible-delay* 'MILLISECONDS'::
Delay before unredirecting the window, in milliseconds. Defaults to 0.