No, the problem is in the grabbing code:
https://github.com/GNOME/gnome-shell/blob/2997e4950ba31747b5e3260c306456b0de413421/js/misc/keyboardManager.js#L37
https://github.com/GNOME/mutter/blob/49f029571cc425a878e520310a8db616fa5c4b70/src/core/keybindings.c#L1803
This grabs the keyboard.
>From https://www.x.org/wiki/Development/Documentation/GrabProcessing :
'There can only be one grab on a device ...'
See the xev output below, of me pressing META+SPACE to change layout:
FocusOut event, serial 34, synthetic NO, window 0x3200001,
mode NotifyGrab, detail NotifyAncestor
FocusIn event, serial 34, synthetic NO, window 0x3200001,
mode NotifyUngrab, detail NotifyNonlinear
KeymapNotify event, serial 34, synthetic NO, window 0x0,
keys: 70 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
FocusOut event, serial 34, synthetic NO, window 0x3200001,
mode NotifyGrab, detail NotifyNonlinear
FocusIn event, serial 34, synthetic NO, window 0x3200001,
mode NotifyUngrab, detail NotifyNonlinear
KeymapNotify event, serial 34, synthetic NO, window 0x0,
keys: 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
The issue is that it is losing grab, as the FocusOut event shows the
mode is notifyGrab. Or at least that is my interpretation. I don't know
why the grab and ungrab events are the wrong way round.
** Changed in: gnome-shell (Ubuntu)
Assignee: (unassigned) => Penn Mackintosh (penn-mackintosh)
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https://bugs.launchpad.net/bugs/1244090
Title:
Pressing any global keyboard shortcut causes temporary loss of focus
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