Bug#909332: gnome-shell: grp:shifts_toggle keyboard layout switch depends on the sequence in which Shift keys are pressed

[Alexander Kuznetsov]

Package: gnome-shell
Version: 3.30.0-1
Severity: normal
Tags: upstream

I have two keyboard layouts and switch them with both Shift keys together.

If I hold LShift and press RShift, the layout switches.
If I hold RShift and press LShift, it does not.

All is normal if I use xset to configure such behavior at X11 level, but have
the glitch if I do it at Gnome.


$ gsettings list-recursively org.gnome.desktop.input-sources
org.gnome.desktop.input-sources show-all-sources false
org.gnome.desktop.input-sources xkb-options ['terminate:ctrl_alt_bksp',
'grp:shifts_toggle']
org.gnome.desktop.input-sources per-window false
org.gnome.desktop.input-sources current uint32 0
org.gnome.desktop.input-sources mru-sources @a(ss) []
org.gnome.desktop.input-sources sources [('xkb', 'us'), ('xkb', 'ru')]



-- System Information:
Debian Release: buster/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 4.18.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages gnome-shell depends on:
ii  dconf-gsettings-backend [gsettings-backend]  0.30.0-1
ii  evolution-data-server                        3.28.5-3
ii  gir1.2-accountsservice-1.0                   0.6.45-1
ii  gir1.2-atspi-2.0                             2.30.0-2
ii  gir1.2-freedesktop                           1.58.0-1
ii  gir1.2-gcr-3                                 3.28.0-1
ii  gir1.2-gdesktopenums-3.0                     3.28.0-1
ii  gir1.2-gdm-1.0                               3.28.2-4
ii  gir1.2-geoclue-2.0                           2.4.12-2
ii  gir1.2-glib-2.0                              1.58.0-1
ii  gir1.2-gnomebluetooth-1.0                    3.28.2-2
ii  gir1.2-gnomedesktop-3.0                      3.30.0-1
ii  gir1.2-gtk-3.0                               3.22.30-2
ii  gir1.2-gweather-3.0                          3.28.2-1
ii  gir1.2-ibus-1.0                              1.5.19-1
ii  gir1.2-mutter-3                              3.30.0-1
ii  gir1.2-nm-1.0                                1.12.2-3
ii  gir1.2-nma-1.0                               1.8.18-1
ii  gir1.2-pango-1.0                             1.42.4-3
ii  gir1.2-polkit-1.0                            0.105-21
ii  gir1.2-rsvg-2.0                              2.40.20-3
ii  gir1.2-soup-2.4                              2.64.0-2
ii  gir1.2-upowerglib-1.0                        0.99.8-2
ii  gjs                                          1.52.3-2
ii  gnome-backgrounds                            3.30.0-1
ii  gnome-settings-daemon                        3.30.0-1
ii  gnome-shell-common                           3.30.0-1
ii  gsettings-desktop-schemas                    3.28.0-1
ii  libatk-bridge2.0-0                           2.30.0-1
ii  libatk1.0-0                                  2.30.0-1
ii  libc6                                        2.27-6
ii  libcairo2                                    1.15.12-1
ii  libcanberra-gtk3-0                           0.30-6
ii  libcanberra0                                 0.30-6
ii  libcroco3                                    0.6.12-2
ii  libecal-1.2-19                               3.28.5-3
ii  libedataserver-1.2-23                        3.28.5-3
ii  libgcr-base-3-1                              3.28.0-1
ii  libgdk-pixbuf2.0-0                           2.36.12-2
ii  libgirepository-1.0-1                        1.58.0-1
ii  libgjs0g [libgjs0-libmozjs-52-0]             1.52.3-2
ii  libglib2.0-0                                 2.58.0-4
ii  libglib2.0-bin                               2.58.0-4
ii  libgstreamer1.0-0                            1.14.2-2
ii  libgtk-3-0                                   3.22.30-2
ii  libical3                                     3.0.3-1
ii  libjson-glib-1.0-0                           1.4.2-4
ii  libmutter-3-0                                3.30.0-1
ii  libnm0                                       1.12.2-3
ii  libpango-1.0-0                               1.42.4-3
ii  libpangocairo-1.0-0                          1.42.4-3
ii  libpolkit-agent-1-0                          0.105-21
ii  libpolkit-gobject-1-0                        0.105-21
ii  libpulse-mainloop-glib0                      12.2-2
ii  libpulse0                                    12.2-2
ii  libsecret-1-0                                0.18.6-2
ii  libstartup-notification0                     0.12-5
ii  libsystemd0                                  239-9
ii  libx11-6                                     2:1.6.6-1
ii  libxfixes3                                   1:5.0.3-1
ii  mutter                                       3.30.0-1
ii  python3                                      3.6.5-3

Versions of packages gnome-shell recommends:
ii  bolt                  0.3-2
ii  chrome-gnome-shell    9-1
ii  gdm3                  3.28.2-4
ii  gkbd-capplet          3.26.0-3
ii  gnome-control-center  1:3.28.2-1
ii  gnome-user-docs       3.30.0-1
ii  iio-sensor-proxy      2.4-2
ii  switcheroo-control    1.2-1
ii  unzip                 6.0-21

Versions of packages gnome-shell suggests:
pn  gir1.2-telepathyglib-0.12   <none>
pn  gir1.2-telepathylogger-0.2  <none>

-- no debconf information