RShift + LShift works together with LAlt + LShift to switch language layout

Bug #1888940 reported by Norbert
4
This bug affects 1 person
Affects Status Importance Assigned to Milestone
GNOME Shell
New
Unknown
gnome-shell (Ubuntu)
New
Low
Unassigned

Bug Description

Steps to reproduce:
1. Have default Ubuntu 20.04 LTS installed
2. Configure two keyboard layouts - English and Russian
3. Configure <LeftAlt>+<LeftShift> as keyboard layout switcher in GNOME Tweaks
4. Press and hold <RightShift>, then do multiple click on <LeftShift>

Expected results:
* nothing, keyboard layout does not change

Actual results:
* keyboard layout changes as when <LeftAlt>+<LeftShift> was clicked

---

Details:

```
$ cat /etc/default/keyboard ; gsettings get org.gnome.desktop.input-sources xkb-options ; gsettings get org.freedesktop.ibus.general.hotkey triggers
XKBLAYOUT=us,ru
XKBVARIANT=,
BACKSPACE=guess
['grp:lalt_lshift_toggle']
['<Super>space']
```

Note: first seen on https://askubuntu.com/q/1261935 .

---

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: gnome-settings-daemon 3.36.1-0ubuntu1
ProcVersionSignature: Ubuntu 5.4.0-42.46-generic 5.4.44
Uname: Linux 5.4.0-42-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.4
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Sat Jul 25 16:57:06 2020
InstallationDate: Installed on 2020-04-27 (88 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
SourcePackage: gnome-settings-daemon
UpgradeStatus: No upgrade log present (probably fresh install)

Revision history for this message
Norbert (nrbrtx) wrote :
Changed in gnome-settings-daemon (Ubuntu):
importance: Undecided → Low
Changed in gnome-shell (Ubuntu):
importance: Undecided → Low
no longer affects: ubuntu-meta (Ubuntu)
no longer affects: gnome-settings-daemon (Ubuntu)
Revision history for this message
Norbert (nrbrtx) wrote :

Bug exists for both

   4. Press and hold <RightShift>, then do multiple click on <LeftShift>
   4. Press and hold <LeftShift>, then do multiple click on <RightShift>

Revision history for this message
Sebastien Bacher (seb128) wrote :

Could you report it upstream on https://gitlab.gnome.org/GNOME/gnome-shell/-/issues ?

Revision history for this message
Norbert (nrbrtx) wrote :
Revision history for this message
Norbert (nrbrtx) wrote :

Also happens on 18.04 LTS.

tags: added: bionic
Norbert (nrbrtx)
tags: added: xenial
tags: removed: xenial
tags: removed: groovy
Changed in gnome-shell:
status: Unknown → New
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