keyboard panel does not allow to set up Caps as input switch

[George Shuklin]

Keyboard panel has options for input switching, but it does not allow to use Caps as language switch.

Steps to reproduce:

1. gnome-control-center keyboard
2. Scroll down to 'Typing' section
3. Click on Switch to next input source
4. Press Caps

Expected result: Caps Lock key is accepted as switch key
Actual results: Caps key is ignored in the selection window.

P.S. Same goes for 'Switch to previous input source' and Shift-Caps key combination.

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: gnome-control-center 1:3.24.3-0ubuntu1
ProcVersionSignature: Ubuntu 4.11.0-10.15-generic 4.11.8
Uname: Linux 4.11.0-10-generic x86_64
ApportVersion: 2.20.6-0ubuntu4
Architecture: amd64
CurrentDesktop: GNOME
Date: Wed Aug 9 10:56:58 2017
DistributionChannelDescriptor:
 # This is a distribution channel descriptor
 # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
 canonical-oem-somerville-xenial-amd64-20160624-2
EcryptfsInUse: Yes
InstallationDate: Installed on 2017-06-22 (48 days ago)
InstallationMedia: Ubuntu 16.04 "Xenial" - Build amd64 LIVE Binary 20160624-10:47
SourcePackage: gnome-control-center
UpgradeStatus: Upgraded to artful on 2017-07-21 (18 days ago)

[shnireck (shnireck)]

Found a workaround for this bug:

1. Install dconf-editor (sudo apt-get install dconf-editor)
2. Go to /org/gnome/desktop/wm/keybindings/
3. Select key switch-input-source, turn off "Use default value" and set "Custom value" to ['Caps_Lock']
4. (Optional) You can also change value for switch-input-source-backward to something like ['<Shift>Caps_Lock'] (again, turning off "Use default value")

[Jeremy Bícha (jbicha)]

Another way to do this:
1. Install GNOME Tweaks (gnome-tweak-tool)
2. Open the Tweaks app
3. Switch to the Keyboard & Mouse panel
4. Click Additional Layout Options
5. Use the "Switching to another layout" section

[Sebastien Bacher (seb128)]

Thank you for your bug report, that has been resquested upstream on https://gitlab.gnome.org/GNOME/gnome-control-center/issues/290