I'd like to know how to add cyrillic characters to the compose-key without removing any of the existing characters that I have.

I have a Norwegian Lenovo USB keyboard. When I hold AltGr and press v and b rapidly, it produces “bvbv instead of “”“”“”. I get the latter expected result when pressing v and b slowly. Never letting go of AltGr. xev shows that the AltGr key is released when pressing b for the first time when doing this rapidly. (Output .) Any idea what could be causing this? Updated Debian Jessie with GNOME desktop.

I created a custom Ukrainian ISO 9 layout successfully (by redacting /usr/share/X11/xkb/symbols/ua and several other files), it works and all but it lacks one letter, namely G with a grave i.e. 'G̀' (for 'Ґ'), which is absent in Unicode partial alphanumeric_keys xkb_symbols "latynka" { include "ua(winkeys)" name[Group1]= "Ukrainian (Latynka ISO 9)"; key { [ apostrophe, asciitilde , dead_acute ] }; key { [ 1, exclam ] }; key { [ 2, quotedbl ] }; key { [ 3, numbersign ] }; key { [ 4, asterisk ] }; key { [ 5, colon ] }; key { [ 6, comma ] }; key { [ 7, period ] }; key { [ 8, semicolon ] }; key { [ 9, parenleft ] }; key { [ 0, parenright ] }; key { [ minus, underscore ] }; key { [ equal, plus ] }; key { [ j, J ] }; key { [ c, C ] }; key { [ u, U ] }; key { [ k, K ] }; key { [ e, E ] }; key { [ n, N ] }; key { [ g, G ] }; key { [ scaron, Scaron ] }; key { [ scircumflex, scircumflex ] }; key { [ z, Z ] }; key { [ h, H ] }; key { [ idiaeresis, Idiaeresis ] }; // key { [ ggrave, Ggrave ] }; // does not exist // key { [ dead_grave g, dead_grave G ] }; // xkb does not allow multiple characters per key press key { [ f, F ] }; key { [ igrave, Igrave ] }; key { [ v, V ] }; key { [ a, A ] }; key { [ p, P ] }; key { [ r, R ] }; key { [ o, O ] }; key { [ l, L ] }; key { [ d, D ] }; key { [ zcaron, Zcaron ] }; key { [ ecircumflex, Ecircumflex ] }; key { [ acircumflex, Acircumflex ] }; key { [ ccaron, Ccaron ] }; key { [ s, S ] }; key { [ m, M ] }; key { [ t, T ] }; key { [ i, I ] }; key { [ minutes, minutes ] }; key { [ b, B ] }; key { [ ucircumflex, Ucircumflex ] }; key { [ slash, question ] }; key { [ period, comma ] }; include "level3(ralt_switch)" }; Is there any way to add it?

After upgrading my OpenSuSE Leap from 15.2 to 15.3, I found out that the Compose key (keycode: 135) was no longer working. In fact, xev no longer recognised it as Multi_key, but as NoSymbol:

KeyPress event, serial 40, synthetic NO, window 0x7800001,
    root 0x561, subw 0x0, time 8470151, (923,367), root:(923,396),
    state 0x10, keycode 135 (keysym 0x0, NoSymbol), same_screen YES,
    XLookupString gives 0 bytes: 
    XmbLookupString gives 0 bytes: 
    XFilterEvent returns: False

NB: The key is really labeled Compose, as it's part of a Sun Type 7 keyboard. In the $XKB/keycodes/evdev file, I've got these two lines of code (of which the second one has been disabled by me, as it's for regular PC keyboards with Menu keys):

= 135;
// alias  = ;

The $XKB/symbols/compose file has been upgraded with the following block:

partial modifier_keys
xkb_symbols "comp" {
    key   { type[Group1]="TWO_LEVEL", [ Multi_key, Multi_key ] };
};

The current setxkbmap config looks as follows:

╭─jacek@epica ~  
╰─➤  setxkbmap -print -verbose 10                                         127 ↵
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:      pc105
layout:     de
variant:    pl
options:    compose:comp,terminate:ctrl_alt_bksp,altwin:meta_win,lv3:ralt_switch
Trying to build keymap using the following components:
keycodes:   evdev+aliases(qwertz)
types:      complete
compat:     complete
symbols:    pc+de(pl)+inet(evdev)+terminate(ctrl_alt_bksp)+altwin(meta_win)+level3(ralt_switch)+terminate(ctrl_alt_bksp)
geometry:   pc(pc105)
xkb_keymap {
        xkb_keycodes  { include "evdev+aliases(qwertz)" };
        xkb_types     { include "complete"      };
        xkb_compat    { include "complete"      };
        xkb_symbols   { include "pc+de(pl)+inet(evdev)+terminate(ctrl_alt_bksp)+altwin(meta_win)+level3(ralt_switch)+terminate(ctrl_alt_bksp)"  };
        xkb_geometry  { include "pc(pc105)"     };
};

I can see the compose:comp option very clearly. So: What's wrong here?

I have the following lines in ~/.XCompose:

   : "∇"
       : "∫"

The first line has 5 keys after `, hence it works in firefox, emacs, and konsole. The second line has 6 keys after , and it seems that's one too long. In emacs it works, in firefox it doesn't work at all, in konsole I get ∫ symbol after the fifth key and I don't need to type `. Of course I actually have more lines in ~/.XCompose, but they are all similar to these two. And it seems that *5 keys* is some kind of limit. How do I make it so that all these lines work in all programs? --- I am using Debian 10 (Buster), KDE, firefox 68.2.0esr. If I run im-config, it prints the following:

Current configuration for the input method:
 * Active configuration: missing (normally missing)
 * Normal automatic choice: none (normally ibus or fcitx or uim)
 * Override rule: zh_CN,fcitx:zh_TW,fcitx:zh_HK,fcitx:zh_SG,fcitx
 * Current override choice:  (en_US)
 * Current automatic choice: none
 * Number of valid choices: 1 (normally 1)
The override rule is defined in /etc/default/im-config.
The configuration set by im-config is activated by re-starting X.
Explicit selection is not required to enable the automatic configuration if the active one is default/auto/cjkv/missing.