KDE on CentOS steals Alt-Shift from applications?

I'm using KDE on CentOS 7 on one machine and KDE on Kubuntu 16.04 on another.

In both cases I've set Alt-Shift to switch keyboard layout. However, in Kubuntu Alt-Shift-XXX is still free: I can make use of Alt-Shift-5 [aka Alt-%] in Emacs and Alt-Shift-o [aka Alt-O] in Krusader, where as in CentOS all app-specific shortcuts featuring Alt-Shift are broken.

This thread sounds very similar: How to prevent Alt+Shift from switching keyboard layout before keyup?

I need help to research into this issue.

Is it GNOME?

$ gsettings list-recursively | grep '<Alt>'

There are no <Alt><Shift> combinations. So probably no, it is not GNOME.

Is it X?:

$ setxkbmap -print -verbose 10
Setting verbose level to 10
locale is C
Trying to load rules file ./rules/evdev...
Trying to load rules file /usr/share/X11/xkb/rules/evdev...
Success.
Applied rules from evdev:
rules:      evdev
model:      pc101
layout:     us,ru
options:    grp:alt_shift_toggle
Trying to build keymap using the following components:
keycodes:   evdev+aliases(qwerty)
types:      complete
compat:     complete
symbols:    pc+us+ru:2+inet(evdev)+group(alt_shift_toggle)
geometry:   pc(pc101)
xkb_keymap {
        xkb_keycodes  { include "evdev+aliases(qwerty)" };
        xkb_types     { include "complete"      };
        xkb_compat    { include "complete"      };
        xkb_symbols   { include "pc+us+ru:2+inet(evdev)+group(alt_shift_toggle)"        };
        xkb_geometry  { include "pc(pc101)"     };
};

Edit

Turns out it's a re-emerging Xorg bug: https://bugs.freedesktop.org/show_bug.cgi?id=865

Now it is featured on Kubuntu 17.04 as well.

Adobe

Posted 2016-06-20T14:52:07.327

Reputation: 1 883

@fixer1234: the bug is sort-of specific to 17.04: I'm using 16.04 on one machine, 16.10 on another and the bug isn't there. It's appears in kubuntu 17.04. Probably the same applies to ubuntu, since xorg-server package is the same between ubuntu and kubuntu. – Adobe – 2017-04-17T19:49:37.430

So you're still looking for some kind of solution or workaround until the bug is fixed? If so, it would be worth adding that to the end of the question so people don't think the bug information means you've given up on the issue. :-) – fixer1234 – 2017-04-17T20:00:55.950

KDE on CentOS steals Alt-Shift from applications?

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