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layout: Check again for primary monitor after startup animation idle

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On some hardware combinations the display can be known, then unknown again. Meaining that
when the update monitors function is called it will have a value, then be called again
setting this.primaryMonitor to null. If the timing is just right gnome shell will
loadBackground, then by the time the animation is ready the monitor will be gone,
thus methods will be called on a null value. This adds more checks for a valid
primary monitor, and wont play the animation until the system is idle AND has a valid
priamry monitor.

Fixes: #5003
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2144>
This commit is contained in:
13r0ck 2022-02-01 13:04:19 -07:00 committed by Marge Bot
parent db68749335
commit 85b51b9974
1 changed files with 8 additions and 4 deletions
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4
js/ui/layout.js
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@ -650,10 +650,14 @@ var LayoutManager = GObject.registerClass({
// This helps to prevent us from running the animation
// when the system is bogged down
const id = GLib.idle_add(GLib.PRIORITY_LOW, () => {
if (this.primaryMonitor) {
this._systemBackground.show();
global.stage.show();
this._prepareStartupAnimation();
return GLib.SOURCE_REMOVE;
} else {
return GLib.SOURCE_CONTINUE;
}
});
GLib.Source.set_name_by_id(id, '[gnome-shell] Startup Animation');
});